General Science One Liners
Common Physics Questions with one line Answer
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GK Common Abbreviations | General Science One Liners
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general science gk
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what is the physical phase of life called?
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general science
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General Science Practice MCQs
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Q.1 Feedback inhibition of enzymes is affected by which of the following
- enzyme
- substrate
- end products
- intermediate end products
Answer ✔ (c) end products
Explanation: end products
Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
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Q.2 An example of competitive inhibition of an enzyme is the inhibition of
- succinic dehydrogenase by malonic acid
- cytochrome oxidase by cyanide
- hexokinase by glucose-6-phosphate
- carbonic anhydrase by carbon dioxide
Answer ✔ (a) succinic dehydrogenase by malonic acid
Explanation: succinic dehydrogenase by malonic acid
Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
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Q.3 Insulin is made up of _______ and _______.
- glucose and fructose
- glucose and fructose
- fructose and mannose
- mannose and glucose
Answer ✔ (b) glucose and fructose
Explanation: Insulin is a polysaccharide made up of glucose and fructose.
Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
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Q.4 Enzymes increase the rate of reaction by
- lowering activation energy
- increasing activation energy
- increasing temperature and pH
- decreasing temperature and pH
Answer ✔ (a) lowering activation energy
Explanation: Enzymes increase the rate of reaction by decreasing the activation energy.
Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
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Q.5 Which of the following statements regarding enzyme inhibition is correct?
- Competitive inhibition is seen when a substrate competes with an enzyme for binding to an inhibitor protein
- Non-competitive inhibitors often bind to the enzyme irreversibly
- Competitive inhibition is seen when the substrate and the inhibitor compete for the active site on the enzyme
- Non-competitive inhibition of an enzyme can be overcome by adding large amount of substrate
Answer ✔ (c) Competitive inhibition is seen when the substrate and the inhibitor compete for the active site on the enzyme
Explanation: Competitive inhibition is seen when the substrate and the inhibitor compete for the active site on the enzyme
Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
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Q.6 Which of the following is not a pyrimidine?
- Uracil
- Cytosine
- Guanine
- Thymine
Answer ✔ (c) Guanine
Explanation: Guanine is a purine.
Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
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Q.7 Hydrolysis of starch occurs with the help of
- Peptidase
- Amylase
- Sucrose
- Lipase
Answer ✔ (b) Amylase
Explanation: Amylase
Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
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Q.8 Assertion: Arachidic acid is an unsaturated fatty acid Reason: There are one or more double bonds between carbon atoms in unsaturated fatty acids
- Both Assertion and Reason are true and Reason is the correct explanation of the Assertion
- Both Assertion and Reason are true but the Reason is not the correct explanations of Assertion
- Assertion is true, but Reason is false.
- Both Assertion and Reason are false
Answer ✔ (d) Both Assertion and Reason are false
Explanation: Both Assertion and Reason are false
Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
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Q.9 Which of the following influence feedback inhibition of enzyme?
- End product
- External factors
- Enzyme
- Substrate
Answer ✔ (a) End product
Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
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Q.10 Which of the following is not a polysaccharide?
- Lactose
- Starch
- Glycogen
- Dextrin
Answer ✔ (a) Lactose
Explanation: Lactose is a disaccharide made up of glucose and galactose.
Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
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Q.11 Inulin is made up of _______ and _______
- glucose and fructose
- glucose and fructose
- fructose and mannose
- mannose and glucose
Answer ✔ (b) glucose and fructose
Explanation: Inulin is a polysaccharide made up of glucose and fructose
Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
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Q.12 A protein having both structural and enzymatic traits is
- Collagen
- Trypsin
- Myosin
- Actin
Answer ✔ (c) Myosin
Explanation: Myosin
Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
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Q.13 NADP contains vitamin ______
- B1
- B2
- B3
- B12
Answer ✔ (c) B3
Explanation: B3 also named as niacin.
Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
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Q.14 With reference to enzymes, which one of the following statements is true?
- Apoenzyme = Holoenzyme + Coenzyme
- Coenzyme = Apoenzyme + Holoenzyme
- Holoenzyme = Apoenzyme + Coenzyme
- Holoenzyme = Coenzyme – Apoenzyme
Answer ✔ (b) Coenzyme = Apoenzyme + Holoenzyme
Explanation: Holoenzyme = Apoenzyme + Coenzyme
Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
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Q.15 Inhibitor binds to the active site of the enzyme. Hence blocking the reaction. This is an example of
- allosteric inhibition
- feedback inhibition
- uncompetitive inhibition
- competitive inhibition
Answer ✔ (d) competitive inhibition
Explanation: When substrate binds to the active site of the enzyme, it completes the reaction.When inhibitor binds to the active site of the enzyme, it blocks the reaction
Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
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Q.16 The fastest enzyme known is
- DNA polymerase
- carbonic anhydrase
- carbonic dehydrogenase
- DNA ligase
Answer ✔ (b) carbonic anhydrase
Explanation: The fastest enzyme known is carbonic anhydrase. It converts 106 molecules of carbon dioxide molecules per second.
Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
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Q.17 Lecithin is a
- polysaccharide
- protein
- nucleic acid
- lipid
Answer ✔ (d) lipid
Explanation: Lecithin is a phospholipid.
Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
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Q.18 The minimum amount of energy required to initiate a chemical reaction is called
- enzymatic energy
- activation energy
- substrate energy
- initiation energy
Answer ✔ (b) activation energy
Explanation: The minimum amount of energy required to initiate a chemical reaction is called activation energy
Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
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Q.19 Enzymes, vitamins and hormones are common in
- Enhancing oxidative metabolism
- Being synthesised in the body of organisms
- Being proteinaceous
- Regulating metabolism
Answer ✔ (d) Regulating metabolism
Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
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Q.20 Nitrogenous bases present in DNA
- Adenine, guanine, cytosine, uracil
- Adenine, guanine, cytosine, thymine
- Adenine, thymine, uracil
- Guanine, uracil
Answer ✔ (b) Adenine, guanine, cytosine, thymine
Explanation: Adenine, guanine, cytosine, thymine
Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
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Q.21 Metabolic intermediates found in living system which are essential for growth and life is called___________
- Saponins
- Tannins
- Secondary metabolite
- Primary metabolites
Answer ✔ (d) Primary metabolites
Explanation: Primary metabolites
Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
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Q.22 Enormous diversity of protein molecules is due to
- R groups of amino acids
- Sequence of amino acids
- Peptide bonds
- Amino groups of amino acids
Answer ✔ (b) Sequence of amino acids
Explanation: Sequence of amino acids
Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
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Q.23 Anti-parallel strands of a DNA molecule mean that
- One strand turns anticlockwise
- Phosphate groups at the start of two DNA strands (poles) are in opposite position
- Phosphate groups of two DNA strands at their ends share the same position
- One strand turns clockwise
Answer ✔ (b) Phosphate groups at the start of two DNA strands (poles) are in opposite position
Explanation: Phosphate groups at the start of two DNA strands (poles) are in opposite position
Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
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Q.24 The introduction of t-DNA into plants involves
- Altering the pH of the soil, then heat shocking the plants
- Exposing the plants to cold for a brief period
- Allowing the plant roots to stand in water
- Infection of the plant by Agrobacterium tumefaciens
Answer ✔ (d) Infection of the plant by Agrobacterium tumefaciens
Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
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Q.25 The most common monomer of carbohydrates is
- Sucrose
- Fructose
- Maltose
- Glucose
Answer ✔ (d) Glucose
Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
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Q.1 Which of the following statements is the most appropriate for sickle cell anaemia ?
- It cannot be treated with iron supplements.
- It is a molecular disease.
- It conferes resistance to acquiring malaria
- All of the above.
Answer ✔ (d) All of the above.
General Science • Biology • Zoology • Class 12th • NEET UG • NEET UG Preparation
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Q.2 The first genetic material could be
- protein
- cabohydrates
- DNA
- RNA
Answer ✔ (d) RNA
Explanation: The first genetic material could be RNA
General Science • Biology • Zoology • Class 12th • NEET UG • NEET UG Preparation
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Q.3 The human chromosome with the highest and least number of genes in them are respectively
- chromosome 21 and Y
- chromosome 1 and X
- chromosome 1 and Y
- chromosome X and Y
Answer ✔ (c) chromosome 1 and Y
Explanation: chromosome 1 and Y is the correct answer.
General Science • Biology • Zoology • Class 12th • NEET UG • NEET UG Preparation
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Q.4 Who amongst the following scientist had no contribution in the development of the double helix model for the structure of DN A ?
- Rosalind Franklin
- Maurice Wilkins
- Erwin Chargaff
- Meselson and Stahl
Answer ✔ (b) Maurice Wilkins
Explanation: Maurice Wilkins contributed in development of double helix model
General Science • Biology • Zoology • Class 12th • NEET UG • NEET UG Preparation
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Q.5 Which of the following steps in transcription is catalysed by RNA polymerase ?
- Initiation
- Elongation
- Termination
- All of the above
Answer ✔ (d) All of the above
Explanation: All of the above
General Science • Biology • Zoology • Class 12th • NEET UG • NEET UG Preparation
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Q.6 Control of gene expression takes place at the level of
- DNA-replication
- transcription
- translation
- none of the above
Answer ✔ (b) transcription
Explanation: It takes place at the level of transcription
General Science • Biology • Zoology • Class 12th • NEET UG • NEET UG Preparation
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Q.7 Which was the last human chromosome to be completely sequenced ?
- Chromosome 1
- Chromosome 11
- Chromosome 21
- Chromosome X
Answer ✔ (d) Chromosome X
Explanation: Chromosome X was the last human chromosome to be completely sequenced
General Science • Biology • Zoology • Class 12th • NEET UG • NEET UG Preparation
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Q.8 In some viruses, DNA is synthesised by using RNA as template. Such a DNA is called
- A – DNA
- B – DNA
- cDNA
- rDNA
Answer ✔ (c) cDNA
Explanation: Such a DNA is called cDNA
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Q.9 If the sequence of initrogen bases of the coding strand of DNA in a transcription unit is: 5’ – ATGAATG – 3’, the sequence of bases in its RNA transcript would be
- 5’ – AUG A AUG – 3’
- 5’ – UACUU AC – 3’
- 5’ – CAUUCAU – 3’
- 5’ – GUAAGUA – 3’.
Answer ✔ (d) 5’ – GUAAGUA – 3’.
Explanation: Sequence will be 5’ – GUAAGUA – 3’.
General Science • Biology • Zoology • Class 12th • NEET UG • NEET UG Preparation
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Q.10 The RNA polymerase holocnzyme transcribes
- the promoter, structural gene and the terminator region
- the promoter and the terminator region
- the structural gene and the terminator region
- the structural gene only.
Answer ✔ (b) the promoter and the terminator region
Explanation: The RNA polymerase holocnzyme transcribes the promoter and the terminator region
General Science • Biology • Zoology • Class 12th • NEET UG • NEET UG Preparation
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Q.11 If the base sequence of a codon in mRNA is 5’ – AUG – 3′ the sequence of tRNA pairing with it must be
- 5’ – UAC – 3’
- 5’ – CAU – 3’
- 5’-AUG – 3’
- 5’ – GUA – 3’
Answer ✔ (b) 5’ – CAU – 3’
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Q.12 The amino acid attaches to the tRNA at its
- 5’- end
- 3’ – end
- anticodon site
- DHUloop.
Answer ✔ (b) 3’ – end
Explanation: The amino acid attaches to the tRNA at its 3’ – end
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Q.13 To initiate translation, the wiRNA first bind to
- the smaller ribosomal sub-unit
- the larger ribosomal sub-unit
- the whole ribosome
- no such specificity exists
Answer ✔ (a) the smaller ribosomal sub-unit
Explanation: bind to the smaller ribosomal sub-unit
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Q.14 In E. colt, the lac operon gets switched on when
- lactose is present and it binds to the repressor
- repressor binds to operator
- RNA polymerase binds to the operator
- lactose is present and it binds to RNA polymerase.
Answer ✔ (a) lactose is present and it binds to the repressor
Explanation: In E. colt, the lac operon gets switched on when lactose is present and it binds to the repressor
General Science • Biology • Zoology • Class 12th • NEET UG • NEET UG Preparation
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Q.15 In DNA strand, the nucleotides are linked together by
- glycosidic bonds
- phosphodiester bonds
- peptide bonds
- hydrogen bonds
Answer ✔ (b) phosphodiester bonds
Explanation: In DNA strand, the nucleotides are linked together by phosphodiester bonds
General Science • Biology • Zoology • Class 12th • NEET UG • NEET UG Preparation
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Q.16 If a double stranded DNA has 20% of cytosine, what will be the percentage of adenine in it ?
- 20%
- 40%
- 30%
- 60%
Answer ✔ (c) 30%
Explanation: 30%
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Q.17 If the sequence of bases in one strand of DNA is ATGCATGCA, what would be the sequence of bases on complementary strand ?
- ATGCATGCA
- AUGCAUGCA
- TACTACGT
- UACGUACGU
Answer ✔ (c) TACTACGT
Explanation: The sequence of bases on complementary strand TACTACGT
General Science • Biology • Zoology • Class 12th • NEET UG • NEET UG Preparation
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Q.18 How far is each base pair from the next one in DNA double helix model ?
- 2 nm
- 3.4 nm
- 34 nm
- 0.34 nm
Answer ✔ (d) 0.34 nm
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Q.19 Synthesis of DNA from RNA is explained by
- central dogma reverse
- reverse transcription
- feminism
- all of these
Answer ✔ (d) all of these
Explanation: all of these
General Science • Biology • Zoology • Class 12th • NEET UG • NEET UG Preparation
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Q.20 Histone proteins are
- basic, negatively charged
- basic, positively charged
- acidic, positively charged
- acidic, negatively charged
Answer ✔ (b) basic, positively charged
Explanation: Histone proteins are basic, positively charged
General Science • Biology • Zoology • Class 12th • NEET UG • NEET UG Preparation
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Q.21 The structure in chromatin seen as ‘beads-on string’ when viewed under electron microscope are called
- nucleotides
- nucleosides
- histone octamer
- nucleosomes
Answer ✔ (d) nucleosomes
Explanation: seen as ‘beads-on string’ when viewed under electron microscope are called nucleosomes
General Science • Biology • Zoology • Class 12th • NEET UG • NEET UG Preparation
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Q.22 Find out the wrong statement about heterochromatin,
- It is densely packed
- It stains dark
- It is transcriptionally active.
- It is late replicating
Answer ✔ (c) It is transcriptionally active.
General Science • Biology • Zoology • Class 12th • NEET UG • NEET UG Preparation
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Q.23 They year 2003 was celebrated as the 50th anniversary of discovery of
- transposons by Barbare Me Clintock
- structure of DNA by Watson and Crick
- Mendel’s laws of inheritance
- biotechnology by Kary Muliis.
Answer ✔ (b) structure of DNA by Watson and Crick
Explanation: They year 2003 was celebrated as the 50th anniversary of discovery of structure of DNA by Watson and Crick
General Science • Biology • Zoology • Class 12th • NEET UG • NEET UG Preparation
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Q.24 Amino acids which are specified by single codons are
- phenylalanine and arginine
- tryptophan and methionine
- valine and proline
- methionine and aroinine
Answer ✔ (b) tryptophan and methionine
Explanation: Amino acids which are specified by single codons are tryptophan and methionine
General Science • Biology • Zoology • Class 12th • NEET UG • NEET UG Preparation
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Q.25 Which out of the following statements is incorrect ?
- Genetic code is ambiguous.
- Genetic code is deqenerate
- Genetic code is universal
- Genetic code is non-overlanning.
Answer ✔ (a) Genetic code is ambiguous.
Explanation: Genetic code is ambiguous is incorrect.
General Science • Biology • Zoology • Class 12th • NEET UG • NEET UG Preparation
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Q.1 Which of the following statements is the most appropriate for sickle cell anaemia ?
- It cannot be treated with iron supplements.
- It is a molecular disease.
- It conferes resistance to acquiring malaria
- All of the above.
Answer ✔ (d) All of the above.
General Science • Biology • Zoology • Class 12th • NEET UG • NEET UG Preparation
52 of 536
Q.2 The first genetic material could be
- protein
- cabohydrates
- DNA
- RNA
Answer ✔ (d) RNA
Explanation: The first genetic material could be RNA
General Science • Biology • Zoology • Class 12th • NEET UG • NEET UG Preparation
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Q.3 The human chromosome with the highest and least number of genes in them are respectively
- chromosome 21 and Y
- chromosome 1 and X
- chromosome 1 and Y
- chromosome X and Y
Answer ✔ (c) chromosome 1 and Y
Explanation: chromosome 1 and Y is the correct answer.
General Science • Biology • Zoology • Class 12th • NEET UG • NEET UG Preparation
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Q.4 Who amongst the following scientist had no contribution in the development of the double helix model for the structure of DN A ?
- Rosalind Franklin
- Maurice Wilkins
- Erwin Chargaff
- Meselson and Stahl
Answer ✔ (b) Maurice Wilkins
Explanation: Maurice Wilkins contributed in development of double helix model
General Science • Biology • Zoology • Class 12th • NEET UG • NEET UG Preparation
55 of 536
Q.5 Which of the following steps in transcription is catalysed by RNA polymerase ?
- Initiation
- Elongation
- Termination
- All of the above
Answer ✔ (d) All of the above
Explanation: All of the above
General Science • Biology • Zoology • Class 12th • NEET UG • NEET UG Preparation
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Q.6 Control of gene expression takes place at the level of
- DNA-replication
- transcription
- translation
- none of the above
Answer ✔ (b) transcription
Explanation: It takes place at the level of transcription
General Science • Biology • Zoology • Class 12th • NEET UG • NEET UG Preparation
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Q.7 Which was the last human chromosome to be completely sequenced ?
- Chromosome 1
- Chromosome 11
- Chromosome 21
- Chromosome X
Answer ✔ (d) Chromosome X
Explanation: Chromosome X was the last human chromosome to be completely sequenced
General Science • Biology • Zoology • Class 12th • NEET UG • NEET UG Preparation
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Q.8 In some viruses, DNA is synthesised by using RNA as template. Such a DNA is called
- A – DNA
- B – DNA
- cDNA
- rDNA
Answer ✔ (c) cDNA
Explanation: Such a DNA is called cDNA
General Science • Biology • Zoology • Class 12th • NEET UG • NEET UG Preparation
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Q.9 If the sequence of initrogen bases of the coding strand of DNA in a transcription unit is: 5’ – ATGAATG – 3’, the sequence of bases in its RNA transcript would be
- 5’ – AUG A AUG – 3’
- 5’ – UACUU AC – 3’
- 5’ – CAUUCAU – 3’
- 5’ – GUAAGUA – 3’.
Answer ✔ (d) 5’ – GUAAGUA – 3’.
Explanation: Sequence will be 5’ – GUAAGUA – 3’.
General Science • Biology • Zoology • Class 12th • NEET UG • NEET UG Preparation
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Q.10 The RNA polymerase holocnzyme transcribes
- the promoter, structural gene and the terminator region
- the promoter and the terminator region
- the structural gene and the terminator region
- the structural gene only.
Answer ✔ (b) the promoter and the terminator region
Explanation: The RNA polymerase holocnzyme transcribes the promoter and the terminator region
General Science • Biology • Zoology • Class 12th • NEET UG • NEET UG Preparation
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Q.11 If the base sequence of a codon in mRNA is 5’ – AUG – 3′ the sequence of tRNA pairing with it must be
- 5’ – UAC – 3’
- 5’ – CAU – 3’
- 5’-AUG – 3’
- 5’ – GUA – 3’
Answer ✔ (b) 5’ – CAU – 3’
General Science • Biology • Zoology • Class 12th • NEET UG • NEET UG Preparation
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Q.12 The amino acid attaches to the tRNA at its
- 5’- end
- 3’ – end
- anticodon site
- DHUloop.
Answer ✔ (b) 3’ – end
Explanation: The amino acid attaches to the tRNA at its 3’ – end
General Science • Biology • Zoology • Class 12th • NEET UG • NEET UG Preparation
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Q.13 To initiate translation, the wiRNA first bind to
- the smaller ribosomal sub-unit
- the larger ribosomal sub-unit
- the whole ribosome
- no such specificity exists
Answer ✔ (a) the smaller ribosomal sub-unit
Explanation: bind to the smaller ribosomal sub-unit
General Science • Biology • Zoology • Class 12th • NEET UG • NEET UG Preparation
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Q.14 In E. colt, the lac operon gets switched on when
- lactose is present and it binds to the repressor
- repressor binds to operator
- RNA polymerase binds to the operator
- lactose is present and it binds to RNA polymerase.
Answer ✔ (a) lactose is present and it binds to the repressor
Explanation: In E. colt, the lac operon gets switched on when lactose is present and it binds to the repressor
General Science • Biology • Zoology • Class 12th • NEET UG • NEET UG Preparation
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Q.15 In DNA strand, the nucleotides are linked together by
- glycosidic bonds
- phosphodiester bonds
- peptide bonds
- hydrogen bonds
Answer ✔ (b) phosphodiester bonds
Explanation: In DNA strand, the nucleotides are linked together by phosphodiester bonds
General Science • Biology • Zoology • Class 12th • NEET UG • NEET UG Preparation
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Q.16 If a double stranded DNA has 20% of cytosine, what will be the percentage of adenine in it ?
- 20%
- 40%
- 30%
- 60%
Answer ✔ (c) 30%
Explanation: 30%
General Science • Biology • Zoology • Class 12th • NEET UG • NEET UG Preparation
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Q.17 If the sequence of bases in one strand of DNA is ATGCATGCA, what would be the sequence of bases on complementary strand ?
- ATGCATGCA
- AUGCAUGCA
- TACTACGT
- UACGUACGU
Answer ✔ (c) TACTACGT
Explanation: The sequence of bases on complementary strand TACTACGT
General Science • Biology • Zoology • Class 12th • NEET UG • NEET UG Preparation
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Q.18 How far is each base pair from the next one in DNA double helix model ?
- 2 nm
- 3.4 nm
- 34 nm
- 0.34 nm
Answer ✔ (d) 0.34 nm
General Science • Biology • Zoology • Class 12th • NEET UG • NEET UG Preparation
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Q.19 Synthesis of DNA from RNA is explained by
- central dogma reverse
- reverse transcription
- feminism
- all of these
Answer ✔ (d) all of these
Explanation: all of these
General Science • Biology • Zoology • Class 12th • NEET UG • NEET UG Preparation
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Q.20 Histone proteins are
- basic, negatively charged
- basic, positively charged
- acidic, positively charged
- acidic, negatively charged
Answer ✔ (b) basic, positively charged
Explanation: Histone proteins are basic, positively charged
General Science • Biology • Zoology • Class 12th • NEET UG • NEET UG Preparation
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Q.21 The structure in chromatin seen as ‘beads-on string’ when viewed under electron microscope are called
- nucleotides
- nucleosides
- histone octamer
- nucleosomes
Answer ✔ (d) nucleosomes
Explanation: seen as ‘beads-on string’ when viewed under electron microscope are called nucleosomes
General Science • Biology • Zoology • Class 12th • NEET UG • NEET UG Preparation
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Q.22 Find out the wrong statement about heterochromatin,
- It is densely packed
- It stains dark
- It is transcriptionally active.
- It is late replicating
Answer ✔ (c) It is transcriptionally active.
General Science • Biology • Zoology • Class 12th • NEET UG • NEET UG Preparation
73 of 536
Q.23 They year 2003 was celebrated as the 50th anniversary of discovery of
- transposons by Barbare Me Clintock
- structure of DNA by Watson and Crick
- Mendel’s laws of inheritance
- biotechnology by Kary Muliis.
Answer ✔ (b) structure of DNA by Watson and Crick
Explanation: They year 2003 was celebrated as the 50th anniversary of discovery of structure of DNA by Watson and Crick
General Science • Biology • Zoology • Class 12th • NEET UG • NEET UG Preparation
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Q.24 Amino acids which are specified by single codons are
- phenylalanine and arginine
- tryptophan and methionine
- valine and proline
- methionine and aroinine
Answer ✔ (b) tryptophan and methionine
Explanation: Amino acids which are specified by single codons are tryptophan and methionine
General Science • Biology • Zoology • Class 12th • NEET UG • NEET UG Preparation
75 of 536
Q.25 Which out of the following statements is incorrect ?
- Genetic code is ambiguous.
- Genetic code is deqenerate
- Genetic code is universal
- Genetic code is non-overlanning.
Answer ✔ (a) Genetic code is ambiguous.
Explanation: Genetic code is ambiguous is incorrect.
General Science • Biology • Zoology • Class 12th • NEET UG • NEET UG Preparation
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Q.1 Which among the following is not ammonotelic
- Aquatic amphibian
- Aquatic insect
- Bony fishes
- Mammal
Answer ✔ (d) Mammal
Explanation: Mammal is ureotelic
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Q.2 Which among the following is not ureotelic
- Mammal
- Aquatic insect
- Terrestrial amphibian
- Marine fishes
Answer ✔ (b) Aquatic insect
Explanation: Aquatic insect is ammonotelic
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
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Q.3 Which among the following is not uricootelic
- Mammal
- Reptiles
- Birds
- Snails
Answer ✔ (a) Mammal
Explanation: Mammal is ureotelic
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
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Q.4 Which among is the most toxic
- Ammonia
- Uric acid
- Urea
- None of the above
Answer ✔ (a) Ammonia
Explanation: Ammonia is the most toxic
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
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Q.5 Which requires min water for removal from body
- Ammonia
- Urea
- Uric acid
- None of the above
Answer ✔ (c) Uric acid
Explanation: Uric acid is least toxic thus requires less water
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
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Q.6 Flame cells or protonephridia are NOT excretory structure of
- Planaria
- Annelids
- Cockroach
- Rotifers
Answer ✔ (c) Cockroach
Explanation: They have malphigian body for excretion
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
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Q.7 Kidney is present between
- T12 L3
- T11 L2
- T 10 L1
- None of the above
Answer ✔ (a) T12 L3
Explanation: Present between last thoracic and third lumbar
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
83 of 536
Q.8 Green glands/ antennal glands are excretory structures of which organism
- Earthworm
- Prawn
- Cockroach
- Planaria
Answer ✔ (b) Prawn
Explanation: Planaria have flame cells, cockroach have malphigian tubules and earthworm have nephridia
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
84 of 536
Q.9 What is an average weight of kidney
- 80-90g
- 120-150g
- 110-120g
- 120-170g
Answer ✔ (d) 120-170g
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
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Q.10 Each kidney has how many nephrons
- 1 million
- 2 million
- 2 thousand
- 2 hundred
Answer ✔ (b) 2 million
Explanation: 2 million nephrons are present in each kidney
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
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Q.11 What are the structural and functional unit of kidney
- Nephrons
- Cell
- Neurons
- None of the above
Answer ✔ (a) Nephrons
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
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Q.12 Bowman capsule with glomerulus is known as
- Malphigian body
- Renal corpuscle
- Malphigian capsule
- Both b and c
Answer ✔ ()
Explanation: Malphigian capsul is an excretory structure.
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
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Q.13 Which nephrons run deep into the medulla
- Cortical nephron
- Juxta medullary nephron
- Both a and b
- None of the above
Answer ✔ (b) Juxta medullary nephron
Explanation: Cortical nephron is short in length
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
89 of 536
Q.14 Kidney transplantation is the ultimate method of correction in which case
- Renal calculi
- Renal failure
- Uremia
- None of the above
Answer ✔ (b) Renal failure
Explanation: A functioning kidney is used in transplantation
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
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Q.15 Which loop of hence is permeable to water
- Descending loop
- Ascending loop
- Both the loops
- None of the above
Answer ✔ (a) Descending loop
Explanation: Only descending loop of henle is permeable to water.
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
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Q.16 Which gland remove substances like sterols, hydrocarbons and waxes
- Pineal gland
- Pancreas
- Gall bladder
- Sweat glands
Answer ✔ (d) Sweat glands
Explanation: Sweat glands release these substances
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
92 of 536
Q.17 Presence of glucose in urine is known as
- Ketonuria
- Glycosides
- Glycosuria
- None of the above
Answer ✔ (c) Glycosuria
Explanation: Ketonuria is presence of ketone body in urine
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
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Q.18 Inflammation of glomeruli of kidney is known as
- Uremia
- Renal failure
- Renal calculi
- Glomerulonephritis
Answer ✔ (d) Glomerulonephritis
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
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Q.19 Angiotensinogen 2 is
- Vasoconstriction
- Vasodilation
- Both a and b
- None of the above
Answer ✔ (a) Vasoconstriction
Explanation: It only cause vasoconstriction
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
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Q.20 ANF can cause
- Vasoconstriction
- Vasodilation
- Both a and b
- None of the above
Answer ✔ (b) Vasodilation
Explanation: It only cause vasodilation
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
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Q.21 GFR in healthy individual is
- 180 L
- 150L
- 130L
- 120L
Answer ✔ (a) 180 L
Explanation: Its approx 125 ml/min I.e 180L per day
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
97 of 536
Q.22 Ciliated columnar cells are lined in which of the following
- DCT
- Both a and c
- PCT
- None of the above
Answer ✔ (c) PCT
Explanation: In DCT columnar cells are present w/o cilia
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
98 of 536
Q.23 On average how much blood is filtered by kidney per minute
- 500-800ml
- 1100- 1200ml
- 1500-1700ml
- 1600-1800ml
Answer ✔ (b) 1100- 1200ml
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
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Q.24 Vasa recta is present in which type of nephron
- Cortical nephron
- Juxta medullary nephron
- Both a and b
- None of the above
Answer ✔ (a) Cortical nephron
Explanation: Its absent or highly reduced in cortical nephron
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
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Q.1 Which among the following is not ammonotelic
- Aquatic amphibian
- Aquatic insect
- Bony fishes
- Mammal
Answer ✔ (d) Mammal
Explanation: Mammal is ureotelic
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
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Q.2 Which among the following is not ureotelic
- Mammal
- Aquatic insect
- Terrestrial amphibian
- Marine fishes
Answer ✔ (b) Aquatic insect
Explanation: Aquatic insect is ammonotelic
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
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Q.3 Which among the following is not uricootelic
- Mammal
- Reptiles
- Birds
- Snails
Answer ✔ (a) Mammal
Explanation: Mammal is ureotelic
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
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Q.4 Which among is the most toxic
- Ammonia
- Uric acid
- Urea
- None of the above
Answer ✔ (a) Ammonia
Explanation: Ammonia is the most toxic
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
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Q.5 Which requires min water for removal from body
- Ammonia
- Urea
- Uric acid
- None of the above
Answer ✔ (c) Uric acid
Explanation: Uric acid is least toxic thus requires less water
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
105 of 536
Q.6 Flame cells or protonephridia are NOT excretory structure of
- Planaria
- Annelids
- Cockroach
- Rotifers
Answer ✔ (c) Cockroach
Explanation: They have malphigian body for excretion
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
106 of 536
Q.7 Kidney is present between
- T12 L3
- T11 L2
- T 10 L1
- None of the above
Answer ✔ (a) T12 L3
Explanation: Present between last thoracic and third lumbar
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
107 of 536
Q.8 Green glands/ antennal glands are excretory structures of which organism
- Earthworm
- Prawn
- Cockroach
- Planaria
Answer ✔ (b) Prawn
Explanation: Planaria have flame cells, cockroach have malphigian tubules and earthworm have nephridia
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
108 of 536
Q.9 What is an average weight of kidney
- 80-90g
- 120-150g
- 110-120g
- 120-170g
Answer ✔ (d) 120-170g
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
109 of 536
Q.10 Each kidney has how many nephrons
- 1 million
- 2 million
- 2 thousand
- 2 hundred
Answer ✔ (b) 2 million
Explanation: 2 million nephrons are present in each kidney
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
110 of 536
Q.11 What are the structural and functional unit of kidney
- Nephrons
- Cell
- Neurons
- None of the above
Answer ✔ (a) Nephrons
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
111 of 536
Q.12 Bowman capsule with glomerulus is known as
- Malphigian body
- Renal corpuscle
- Malphigian capsule
- Both b and c
Answer ✔ ()
Explanation: Malphigian capsul is an excretory structure.
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
112 of 536
Q.13 Which nephrons run deep into the medulla
- Cortical nephron
- Juxta medullary nephron
- Both a and b
- None of the above
Answer ✔ (b) Juxta medullary nephron
Explanation: Cortical nephron is short in length
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
113 of 536
Q.14 Kidney transplantation is the ultimate method of correction in which case
- Renal calculi
- Renal failure
- Uremia
- None of the above
Answer ✔ (b) Renal failure
Explanation: A functioning kidney is used in transplantation
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
114 of 536
Q.15 Which loop of hence is permeable to water
- Descending loop
- Ascending loop
- Both the loops
- None of the above
Answer ✔ (a) Descending loop
Explanation: Only descending loop of henle is permeable to water.
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
115 of 536
Q.16 Which gland remove substances like sterols, hydrocarbons and waxes
- Pineal gland
- Pancreas
- Gall bladder
- Sweat glands
Answer ✔ (d) Sweat glands
Explanation: Sweat glands release these substances
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
116 of 536
Q.17 Presence of glucose in urine is known as
- Ketonuria
- Glycosides
- Glycosuria
- None of the above
Answer ✔ (c) Glycosuria
Explanation: Ketonuria is presence of ketone body in urine
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
117 of 536
Q.18 Inflammation of glomeruli of kidney is known as
- Uremia
- Renal failure
- Renal calculi
- Glomerulonephritis
Answer ✔ (d) Glomerulonephritis
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
118 of 536
Q.19 Angiotensinogen 2 is
- Vasoconstriction
- Vasodilation
- Both a and b
- None of the above
Answer ✔ (a) Vasoconstriction
Explanation: It only cause vasoconstriction
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
119 of 536
Q.20 ANF can cause
- Vasoconstriction
- Vasodilation
- Both a and b
- None of the above
Answer ✔ (b) Vasodilation
Explanation: It only cause vasodilation
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
120 of 536
Q.21 GFR in healthy individual is
- 180 L
- 150L
- 130L
- 120L
Answer ✔ (a) 180 L
Explanation: Its approx 125 ml/min I.e 180L per day
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
121 of 536
Q.22 Ciliated columnar cells are lined in which of the following
- DCT
- Both a and c
- PCT
- None of the above
Answer ✔ (c) PCT
Explanation: In DCT columnar cells are present w/o cilia
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
122 of 536
Q.23 On average how much blood is filtered by kidney per minute
- 500-800ml
- 1100- 1200ml
- 1500-1700ml
- 1600-1800ml
Answer ✔ (b) 1100- 1200ml
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
123 of 536
Q.24 Vasa recta is present in which type of nephron
- Cortical nephron
- Juxta medullary nephron
- Both a and b
- None of the above
Answer ✔ (a) Cortical nephron
Explanation: Its absent or highly reduced in cortical nephron
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
124 of 536
Q.1 Golgi complex and endoplasmic reticulum cannot be seen during
- late telophase
- late prophase
- early anaphase
- late metaphase
Answer ✔ (b) late prophase
Explanation: Cells, when viewed under microscope at the end of prophase, do not show golgi complex, endoplasmic reticulum, nucleolus and nuclear envelope.
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.2 Cell plate grows from
- walls to the centre
- centre to the walls
- in patches
- simultaneously
Answer ✔ (b) centre to the walls
Explanation: Cell plate grows during cytokinesis from centre to the walls
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.3 Choose the correct sequence. A. Chromatin condensation B. Protein synthesis C. Duplication of centrioles D. Centrioles moves towards opposite poles
- C, A, B, D
- C, B, A, D
- C, D, B, A
- A, C, D, B
Answer ✔ (b) C, B, A, D
Explanation: Duplication of centrioles occurs in S-phase.Protein synthesis occurs in G2 phase.chromatin condensation is followed by centrioles movement towards the poles. (Prophase)
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.4 If you are provided with root-tips of onion in your class and are asked to count the chromosomes which of the following stages can you most conveniently look into
- Prophase
- Anaphase
- Telophase
- Metaphase
Answer ✔ (d) Metaphase
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.5 Karyokinesis is the term used for
- division of cytoplasm
- division of nucleoplasm
- division of nucleus
- separation of daughter chromosomes
Answer ✔ (d) separation of daughter chromosomes
Explanation: Karyokinesis means separation of daughter chromosomes.Cytokinesis means division of cytoplasm
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.6 During which stage the chromosomes first become visible
- Anaphase
- Metaphase
- Prophase
- Telophase
Answer ✔ (c) Prophase
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.7 In mitosis, nuclear envelope and nucleolus disappear during
- Metaphase
- Interphase
- Prophase
- Telophase
Answer ✔ (c) Prophase
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
131 of 536
Q.8 Arrange the following events of meiosis in the correct sequence: I. Terminalization II. Crossing over III. Synapsis IV. Disjunction of genomes The correct sequences
- II, I, IV, III
- III, II, I, IV
- IV, III, II, I
- I, IV, III, II
Answer ✔ (b) III, II, I, IV
Explanation: III, II, I, IV
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.9 The major event that occurs during the anaphase of mitosis, which brings about the equal distribution of chromosomes, is
- splitting of the centromeres
- splitting of the chromatids
- replication of the genetic material
- condensation of the chromatin
Answer ✔ (a) splitting of the centromeres
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.10 what type of plant is formed when colchicine is used in the process of development of Raphanobrassica?
- Autotetraploid
- Haploid
- Triploid
- Allotetraploid
Answer ✔ (d) Allotetraploid
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.11 Meiosis occurs for the human female in ______.
- Pancreas
- Liver
- Ovary
- Kidney
Answer ✔ (c) Ovary
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.12 Choose the correct sequence. A. Pachytene B. Zygotene C. Leptotene D. Diakinesis E. Diplotene
- C, B, A, D, E
- C, A, B, E, D
- C, B, A, E, D
- D, B, C, E, A
Answer ✔ (c) C, B, A, E, D
Explanation: These are the five phases of prophase I of Meiosis I based on the chromosomal behaviour
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
136 of 536
Q.13 How many chromosomes are there in onion root tip cell?
- 6
- 16
- 26
- 36
Answer ✔ (b) 16
Explanation: There are 16 chromosomes in onion root tip cell.
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.14 Lampbrush chromosomes are observed in
- Mitotic prophase
- Mitotic metaphase
- Meiotic metaphase
- Meiotic prophase
Answer ✔ (d) Meiotic prophase
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.15 Which of the following cellular structures always disappears during mitosis and meiosis?
- Plasma membrane
- Nucleolus and nuclear envelope
- Plastids
- none of these
Answer ✔ (b) Nucleolus and nuclear envelope
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
139 of 536
Q.16 Centromere is a constituent of
- Ribosome
- ER
- Chromosome
- Mitochondrion
Answer ✔ (c) Chromosome
Explanation: Chromosome
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.17 In which phase of cell cycle, proteins are synthesised?
- G0
- G1
- G2
- S
Answer ✔ (c) G2
Explanation: In G2 phase of cell cycle, proteins are synthesised for mitosis and cell growth continues
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.18
- Early prophase
- Early metaphase
- Early telophase
- Early anaphase
Answer ✔ (b) Early metaphase
Explanation: Chromosomes are positioning towards the equator.
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
142 of 536
Q.19 The stage in which daughter chromosomes move toward the poles of the spindle is
- Anaphase
- Metaphase
- Prophase
- Telophase
Answer ✔ (a) Anaphase
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
143 of 536
Q.20 Synaptonemal complex dissolves in _____ stage.
- Zygotene
- Pachytene
- Diakinesis
- Diplotene
Answer ✔ (d) Diplotene
Explanation: Synaptonemal complex dissolves in diplotene stage of Prophase I.
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
144 of 536
Q.21 Synapsis occurs between
- A male and female gametes
- Ribosome and m-RNA
- Spindle fibres and centromeres
- Two homologous chromosomes
Answer ✔ (d) Two homologous chromosomes
Explanation: Two homologous chromosomes
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
145 of 536
Q.22 Division of nucleus without being followed by cytokinesis results into
- Phargmoplast
- Polyploidy
- Uninucleate condition
- Multinucleate condition
Answer ✔ (d) Multinucleate condition
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.23 A cell plate is laid down during
- Cytokinesis
- Interphase
- Karyokinesis
- None of these
Answer ✔ (a) Cytokinesis
Explanation: Cytokinesis
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
147 of 536
Q.24 Crossing over results the exchange of genetic material, which occurs between
- Non-sister chromosomes
- Sister chromatids
- Non-homologous chromosome
- Homologous chromosomes
Answer ✔ (d) Homologous chromosomes
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
148 of 536
Q.25 The number of chromosome and the amount of DNA are changed in
- Metaphase and M phase
- Anaphase and S phase
- Interphase and S phase
- None of these
Answer ✔ (b) Anaphase and S phase
Explanation: Anaphase and S phase
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
149 of 536
Q.1 Golgi complex and endoplasmic reticulum cannot be seen during
- late telophase
- late prophase
- early anaphase
- late metaphase
Answer ✔ (b) late prophase
Explanation: Cells, when viewed under microscope at the end of prophase, do not show golgi complex, endoplasmic reticulum, nucleolus and nuclear envelope.
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
150 of 536
Q.2 Cell plate grows from
- walls to the centre
- centre to the walls
- in patches
- simultaneously
Answer ✔ (b) centre to the walls
Explanation: Cell plate grows during cytokinesis from centre to the walls
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
151 of 536
Q.3 Choose the correct sequence. A. Chromatin condensation B. Protein synthesis C. Duplication of centrioles D. Centrioles moves towards opposite poles
- C, A, B, D
- C, B, A, D
- C, D, B, A
- A, C, D, B
Answer ✔ (b) C, B, A, D
Explanation: Duplication of centrioles occurs in S-phase.Protein synthesis occurs in G2 phase.chromatin condensation is followed by centrioles movement towards the poles. (Prophase)
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
152 of 536
Q.4 If you are provided with root-tips of onion in your class and are asked to count the chromosomes which of the following stages can you most conveniently look into
- Prophase
- Anaphase
- Telophase
- Metaphase
Answer ✔ (d) Metaphase
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
153 of 536
Q.5 Karyokinesis is the term used for
- division of cytoplasm
- division of nucleoplasm
- division of nucleus
- separation of daughter chromosomes
Answer ✔ (d) separation of daughter chromosomes
Explanation: Karyokinesis means separation of daughter chromosomes.Cytokinesis means division of cytoplasm
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
154 of 536
Q.6 During which stage the chromosomes first become visible
- Anaphase
- Metaphase
- Prophase
- Telophase
Answer ✔ (c) Prophase
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
155 of 536
Q.7 In mitosis, nuclear envelope and nucleolus disappear during
- Metaphase
- Interphase
- Prophase
- Telophase
Answer ✔ (c) Prophase
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
156 of 536
Q.8 Arrange the following events of meiosis in the correct sequence: I. Terminalization II. Crossing over III. Synapsis IV. Disjunction of genomes The correct sequences
- II, I, IV, III
- III, II, I, IV
- IV, III, II, I
- I, IV, III, II
Answer ✔ (b) III, II, I, IV
Explanation: III, II, I, IV
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
157 of 536
Q.9 The major event that occurs during the anaphase of mitosis, which brings about the equal distribution of chromosomes, is
- splitting of the centromeres
- splitting of the chromatids
- replication of the genetic material
- condensation of the chromatin
Answer ✔ (a) splitting of the centromeres
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
158 of 536
Q.10 what type of plant is formed when colchicine is used in the process of development of Raphanobrassica?
- Autotetraploid
- Haploid
- Triploid
- Allotetraploid
Answer ✔ (d) Allotetraploid
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
159 of 536
Q.11 Meiosis occurs for the human female in ______.
- Pancreas
- Liver
- Ovary
- Kidney
Answer ✔ (c) Ovary
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
160 of 536
Q.12 Choose the correct sequence. A. Pachytene B. Zygotene C. Leptotene D. Diakinesis E. Diplotene
- C, B, A, D, E
- C, A, B, E, D
- C, B, A, E, D
- D, B, C, E, A
Answer ✔ (c) C, B, A, E, D
Explanation: These are the five phases of prophase I of Meiosis I based on the chromosomal behaviour
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
161 of 536
Q.13 How many chromosomes are there in onion root tip cell?
- 6
- 16
- 26
- 36
Answer ✔ (b) 16
Explanation: There are 16 chromosomes in onion root tip cell.
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Q.14 Lampbrush chromosomes are observed in
- Mitotic prophase
- Mitotic metaphase
- Meiotic metaphase
- Meiotic prophase
Answer ✔ (d) Meiotic prophase
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Q.15 Which of the following cellular structures always disappears during mitosis and meiosis?
- Plasma membrane
- Nucleolus and nuclear envelope
- Plastids
- none of these
Answer ✔ (b) Nucleolus and nuclear envelope
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Q.16 Centromere is a constituent of
- Ribosome
- ER
- Chromosome
- Mitochondrion
Answer ✔ (c) Chromosome
Explanation: Chromosome
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.17 In which phase of cell cycle, proteins are synthesised?
- G0
- G1
- G2
- S
Answer ✔ (c) G2
Explanation: In G2 phase of cell cycle, proteins are synthesised for mitosis and cell growth continues
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.18
- Early prophase
- Early metaphase
- Early telophase
- Early anaphase
Answer ✔ (b) Early metaphase
Explanation: Chromosomes are positioning towards the equator.
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.19 The stage in which daughter chromosomes move toward the poles of the spindle is
- Anaphase
- Metaphase
- Prophase
- Telophase
Answer ✔ (a) Anaphase
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Q.20 Synaptonemal complex dissolves in _____ stage.
- Zygotene
- Pachytene
- Diakinesis
- Diplotene
Answer ✔ (d) Diplotene
Explanation: Synaptonemal complex dissolves in diplotene stage of Prophase I.
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.21 Synapsis occurs between
- A male and female gametes
- Ribosome and m-RNA
- Spindle fibres and centromeres
- Two homologous chromosomes
Answer ✔ (d) Two homologous chromosomes
Explanation: Two homologous chromosomes
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.22 Division of nucleus without being followed by cytokinesis results into
- Phargmoplast
- Polyploidy
- Uninucleate condition
- Multinucleate condition
Answer ✔ (d) Multinucleate condition
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Q.23 A cell plate is laid down during
- Cytokinesis
- Interphase
- Karyokinesis
- None of these
Answer ✔ (a) Cytokinesis
Explanation: Cytokinesis
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.24 Crossing over results the exchange of genetic material, which occurs between
- Non-sister chromosomes
- Sister chromatids
- Non-homologous chromosome
- Homologous chromosomes
Answer ✔ (d) Homologous chromosomes
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Q.25 The number of chromosome and the amount of DNA are changed in
- Metaphase and M phase
- Anaphase and S phase
- Interphase and S phase
- None of these
Answer ✔ (b) Anaphase and S phase
Explanation: Anaphase and S phase
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.1 Mechanism of development was explained by
- Hans Dietrisch
- Spemann
- Both a and b
- Haemmerling
Answer ✔ (c) Both a and b
Explanation: Both a and b
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.2 Intercalary meristems are of
- Permanent nature
- Temporary nature
- Some are permanent some temporary
- None of these
Answer ✔ (b) Temporary nature
Explanation: Intercalary meristems are of temporary nature
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.3 Cells of fibers and tracheids elongate during
- Phase of cell division
- Phase of cell elongation
- Phase of cell maturation
- Phase of cell differentiation
Answer ✔ (a) Phase of cell division
Explanation: Phase of cell division
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.4 Typical plant growth shows _________ curve.
- J-shaped
- S-shaped
- I-shaped
- Parabolic
Answer ✔ (b) S-shaped
Explanation: Typical plant growth represents sigmoid curve
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.5 Exponential growth of the plants is express as W1 = W0 ert r represents
- ability of the plant to produce new cells
- efficiency index
- relative growth rate
- all of the above
Answer ✔ (d) all of the above
Explanation: r is the relative growth rate and also measures the ability of the plant to produce new plant material (efficiency index).
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.6 Opening of floral buds into flowers, is a type of:
- Autonomic movement of variation
- Autonomic movement of locomotion
- Autonomic movement of growth
- Paratonic movement of growth
Answer ✔ (c) Autonomic movement of growth
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Q.7 Which one is incorrect?
- Epiblast is presumptive ectoderm and mesoderm
- Hypoblast is presumptive endoderm
- Hypoblast is presumptive mesoderm
- Upper layer of cells in blastoderm is epiblast
Answer ✔ (c) Hypoblast is presumptive mesoderm
Explanation: Upper layer of cells in blastoderm is epiblast
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.8 The stage of rapid cell division just after fertilization is
- Organogenesis
- Cleavage
- Gastrulation
- Growth
Answer ✔ (b) Cleavage
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Q.9 Which one of the followings is a gaseous plant hormone?
- Ethylene
- Gibberellin
- IAA
- Abscisic acid
Answer ✔ (a) Ethylene
Explanation: Ethylene
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.10 To prevent over – ripening, bananas should be
- given a dip in ascorbic acid
- maintained at room temperature
- refrigerated
- stored at the top of refrigerator
Answer ✔ (c) refrigerated
Explanation: refrigerated
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.11 Growth in dorsiventral leaf is measured in terms of
- length of leaf
- increase in cell number
- surface area increase
- none of these
Answer ✔ (c) surface area increase
Explanation: Increase in surface area denotes the growth in a dorsiventral leaf
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.12 Plants grow throughout their life due to
- presence of meristems
- presence of vascular cambium
- presence of xylem and phloem
- presence of tracheids
Answer ✔ (a) presence of meristems
Explanation: Plants growth throughout their life due to the presence of meristems at certain locations in their body.
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.13 Mechanism of development was explained by
- Hans Dietrisch
- Spemann
- Both a and b
- Haemmerling
Answer ✔ (c) Both a and b
Explanation: Haemmerling
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.14 The ability to regain or recover the lost or injured part of body is
- Aging
- Regeneration
- Abnormal development
- Primary inductio
Answer ✔ (b) Regeneration
Explanation: Regeneration
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.15 Which growth hormone accerlates the malting process in brewing industry?
- Auxins
- Gibberellins
- Ethylene
- Cytokinins
Answer ✔ (b) Gibberellins
Explanation: Gibberellins especially GA3 is used to speed up the malting process in brewing industry
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.16 Which plant growth regulator is the derivative of carotenoids?
- Auxin
- Gibberelic acid
- Cytokinin
- Abscisic acid
Answer ✔ (d) Abscisic acid
Explanation: Abscisic acid are the derivatives of carotenoids.
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.17 Typical plant growth shows _________ curve.
- J-shaped
- S-shaped
- I-shaped
- Parabolic
Answer ✔ (b) S-shaped
Explanation: Typical plant growth represents sigmoid curve.
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.18 Mobilisation of stored food in germinating seeds is triggered by
- auxins
- cytokinins
- gibberellins
- ethylene
Answer ✔ (c) gibberellins
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.19 Cavity formed between somatic and splanchnic mesoderm is called
- Gastrocoele
- Blastocoele
- Coelom
- Neurocoele
Answer ✔ (c) Coelom
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Q.20 IAA is naturally occurring plant hormone called
- Gibberlin
- Auxin
- Cytokinin
- Absicic acid
Answer ✔ (b) Auxin
Explanation: Auxin
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.21 Auxin is synthesised from in apical meristem from amino acid
- Isoleucine
- Methionine
- Niacin
- Tryptophan
Answer ✔ (d) Tryptophan
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Q.22 Growth regulator which induces parthenocarpy
- IAA
- ABA
- Cytokinin
- Ethylene
Answer ✔ (a) IAA
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Q.23 Formation of seedless fruit without act of fertilisation
- Parthenocarpy
- pseudocarpy
- Apomixis
- Parthenogenesis
Answer ✔ (a) Parthenocarpy
Explanation: Parthenocarpy
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.24 The major site for production of gibberellin is
- Embryos
- Roots
- Young leaves
- All of these
Answer ✔ (d) All of these
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Q.25 Gibberellin is isolated from
- Brian et al
- Went
- Yabuta
- Kurosawa
Answer ✔ (a) Brian et al
Explanation: Brian et al
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.1 Mechanism of development was explained by
- Hans Dietrisch
- Spemann
- Both a and b
- Haemmerling
Answer ✔ (c) Both a and b
Explanation: Both a and b
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.2 Intercalary meristems are of
- Permanent nature
- Temporary nature
- Some are permanent some temporary
- None of these
Answer ✔ (b) Temporary nature
Explanation: Intercalary meristems are of temporary nature
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.3 Cells of fibers and tracheids elongate during
- Phase of cell division
- Phase of cell elongation
- Phase of cell maturation
- Phase of cell differentiation
Answer ✔ (a) Phase of cell division
Explanation: Phase of cell division
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.4 Typical plant growth shows _________ curve.
- J-shaped
- S-shaped
- I-shaped
- Parabolic
Answer ✔ (b) S-shaped
Explanation: Typical plant growth represents sigmoid curve
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
203 of 536
Q.5 Exponential growth of the plants is express as W1 = W0 ert r represents
- ability of the plant to produce new cells
- efficiency index
- relative growth rate
- all of the above
Answer ✔ (d) all of the above
Explanation: r is the relative growth rate and also measures the ability of the plant to produce new plant material (efficiency index).
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
204 of 536
Q.6 Opening of floral buds into flowers, is a type of:
- Autonomic movement of variation
- Autonomic movement of locomotion
- Autonomic movement of growth
- Paratonic movement of growth
Answer ✔ (c) Autonomic movement of growth
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.7 Which one is incorrect?
- Epiblast is presumptive ectoderm and mesoderm
- Hypoblast is presumptive endoderm
- Hypoblast is presumptive mesoderm
- Upper layer of cells in blastoderm is epiblast
Answer ✔ (c) Hypoblast is presumptive mesoderm
Explanation: Upper layer of cells in blastoderm is epiblast
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.8 The stage of rapid cell division just after fertilization is
- Organogenesis
- Cleavage
- Gastrulation
- Growth
Answer ✔ (b) Cleavage
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.9 Which one of the followings is a gaseous plant hormone?
- Ethylene
- Gibberellin
- IAA
- Abscisic acid
Answer ✔ (a) Ethylene
Explanation: Ethylene
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.10 To prevent over – ripening, bananas should be
- given a dip in ascorbic acid
- maintained at room temperature
- refrigerated
- stored at the top of refrigerator
Answer ✔ (c) refrigerated
Explanation: refrigerated
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
209 of 536
Q.11 Growth in dorsiventral leaf is measured in terms of
- length of leaf
- increase in cell number
- surface area increase
- none of these
Answer ✔ (c) surface area increase
Explanation: Increase in surface area denotes the growth in a dorsiventral leaf
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
210 of 536
Q.12 Plants grow throughout their life due to
- presence of meristems
- presence of vascular cambium
- presence of xylem and phloem
- presence of tracheids
Answer ✔ (a) presence of meristems
Explanation: Plants growth throughout their life due to the presence of meristems at certain locations in their body.
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
211 of 536
Q.13 Mechanism of development was explained by
- Hans Dietrisch
- Spemann
- Both a and b
- Haemmerling
Answer ✔ (c) Both a and b
Explanation: Haemmerling
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.14 The ability to regain or recover the lost or injured part of body is
- Aging
- Regeneration
- Abnormal development
- Primary inductio
Answer ✔ (b) Regeneration
Explanation: Regeneration
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.15 Which growth hormone accerlates the malting process in brewing industry?
- Auxins
- Gibberellins
- Ethylene
- Cytokinins
Answer ✔ (b) Gibberellins
Explanation: Gibberellins especially GA3 is used to speed up the malting process in brewing industry
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.16 Which plant growth regulator is the derivative of carotenoids?
- Auxin
- Gibberelic acid
- Cytokinin
- Abscisic acid
Answer ✔ (d) Abscisic acid
Explanation: Abscisic acid are the derivatives of carotenoids.
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.17 Typical plant growth shows _________ curve.
- J-shaped
- S-shaped
- I-shaped
- Parabolic
Answer ✔ (b) S-shaped
Explanation: Typical plant growth represents sigmoid curve.
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
216 of 536
Q.18 Mobilisation of stored food in germinating seeds is triggered by
- auxins
- cytokinins
- gibberellins
- ethylene
Answer ✔ (c) gibberellins
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
217 of 536
Q.19 Cavity formed between somatic and splanchnic mesoderm is called
- Gastrocoele
- Blastocoele
- Coelom
- Neurocoele
Answer ✔ (c) Coelom
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
218 of 536
Q.20 IAA is naturally occurring plant hormone called
- Gibberlin
- Auxin
- Cytokinin
- Absicic acid
Answer ✔ (b) Auxin
Explanation: Auxin
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
219 of 536
Q.21 Auxin is synthesised from in apical meristem from amino acid
- Isoleucine
- Methionine
- Niacin
- Tryptophan
Answer ✔ (d) Tryptophan
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.22 Growth regulator which induces parthenocarpy
- IAA
- ABA
- Cytokinin
- Ethylene
Answer ✔ (a) IAA
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.23 Formation of seedless fruit without act of fertilisation
- Parthenocarpy
- pseudocarpy
- Apomixis
- Parthenogenesis
Answer ✔ (a) Parthenocarpy
Explanation: Parthenocarpy
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.24 The major site for production of gibberellin is
- Embryos
- Roots
- Young leaves
- All of these
Answer ✔ (d) All of these
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.25 Gibberellin is isolated from
- Brian et al
- Went
- Yabuta
- Kurosawa
Answer ✔ (a) Brian et al
Explanation: Brian et al
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.1 R.Q is ratio of
- CO2 produced to substarate consumed
- CO2 produced to O2 consumed
- oxygen consumed to CO2 produced
- oxygen consumed to water produced
Answer ✔ (b) CO2 produced to O2 consumed
Explanation: CO2 produced to O2 consumed
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.2 Angiosperm pollen is generally released at the
- 1 – celled stage
- 2 – celled stage
- 3 – celled stage
- male gamete formation stage
Answer ✔ (b) 2 – celled stage
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.3 The complete oxidation of pyruvate take place in
- cell cytoplasm
- inner mitochondrial membrane
- mitochondrial matrix
- nucleus
Answer ✔ (c) mitochondrial matrix
Explanation: Pyruvate is transported from cytoplasm into the mitochondria. The complete oxidation of pyruvate takes place in matrix of mitochondria
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.4 Which enzyme catalyses the reaction below? Pyruvic acid → Carbon dioxide + Ethanol
- Pyruvic acid decarboxylase
- Alcohol dehydrogenase
- None of these
- Both of these
Answer ✔ (d) Both of these
Explanation: In fermentation, the incomplete oxidation of glucose is achieved under anaerobic conditions by sets of reactions in which pyruvic acid is converted to carbon dioxide and ethanol.
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.5 TCA cycle was discovered by
- Otto Meyerhof
- Hans Kreb
- Gustav Embden
- All of these
Answer ✔ (b) Hans Kreb
Explanation: TCA cycle or tricarboxylic acid cycle was given by Hans Kreb. So it is also called as Kreb cycle.
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.6 Which one of the following describes the spikelet of a cereal or grass plant
- inferior ovary
- dehiscent fruit
- pair of glumes
- fused calyx
Answer ✔ (c) pair of glumes
Explanation: pair of glumes
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.7 Malacophily means
- pollination by wind
- pollination by water
- pollination by insects
- pollination by snails
Answer ✔ (d) pollination by snails
Explanation: pollination by snails
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.8 Herkogamy is a contrivance for
- allogamy
- autogamy
- chasmogamy
- cleistogamy
Answer ✔ (a) allogamy
Explanation: allogamy
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.9 Out of 36 ATP molecules produced per glucose molecule during respiration
- 2 are produced outside glycolysis and 34 during repiratory chain
- 2 are produced outside mitochondria and 34 inside the mitochondria
- all the formed inside mitochondria
- 2 during glycolysis and 34 during kreds cycle
Answer ✔ (b) 2 are produced outside mitochondria and 34 inside the mitochondria
Explanation: 2 are produced outside mitochondria and 34 inside the mitochondria
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.10 Complete the reaction. _________ + O2 → CO2 + _______ + Energy
- C6H12O6, 2H2O
- C12H22O11, 6H2O
- C6H12O6, 6H2O
- C12H22O11, 11H2O
Answer ✔ (c) C6H12O6, 6H2O
Explanation: C6H12O6 + 6O2 → 6CO2 + 6H2O + Energy
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.11 The significant morphological feature of passion flower is the presence of
- numerous corolla
- androphore
- gynophore
- androgynophore
Answer ✔ (b) androphore
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.12 The final electron acceptor in electron transport chain is
- Cytochrome C
- FADH
- NADH
- oxygen
Answer ✔ (d) oxygen
Explanation: Oxygen acts as the final electron acceptor in electron transport chain.
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.13 Which of the following acts as mobile carrier for transfer of electrons between complex III and complex IV?
- Cytochrome c
- cytochrome a3
- cytochrome a
- FADH2
Answer ✔ (a) Cytochrome c
Explanation: Cytochrome c is a small protein attached to outer surface of the inner membrane and acts as mobile carrier for transfer of electrons between complex III and IV.
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.14 Aleurone layer takes part in
- protection of delicate embryo
- enzyme synthesis
- transfer of food to cotyledons
- transfer of food from cotyledons to embryo tips
Answer ✔ (b) enzyme synthesis
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.15 A characteristic of drupe is
- fleshy seed coat
- stony pericarp
- stony mesocarp
- stony endocarp
Answer ✔ (d) stony endocarp
Explanation: stony endocarp is characteristic of drupe is
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.16 Incomplete oxidation of glucose into pyruvic acid with several intermediate steps is know as
- TCA pathway
- Glycolysis
- Hms pathway
- Glycolysis
Answer ✔ (b) Glycolysis
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.17 End product of glycolysis is
- acetyl Coenzyme A
- PEP
- pyruvate
- OAA
Answer ✔ (c) pyruvate
Explanation: The end product of glycolysis is pyruvate.
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.18 Respiratory enzymes are located in
- mitochondrial matrix
- Cristae
- perimitochondrial space
- outer membrane
Answer ✔ (b) Cristae
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Q.19 Respiratory quotient of carbohydrates is
- 0.9
- 1.2
- 1
- 0
Answer ✔ (c) 1
Explanation: RQ i.e. respiratory quotient is 1.RQ = volume of CO2 evolved / volume of O2 consumed
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.20 One molecule of glucose yields ___ ATP molecules in aerobic respiration.
- 2
- 16
- 38
- 42
Answer ✔ (c) 38
Explanation: One molecule of glucose yields 38 molecules of ATP during aerobic respiration.
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.21 When one glucose molecule is completely oxidised, it changes:
- 36 ADP molecules into 36 ATP molecules
- 38 ADP molecules into 38 ATP molecules
- 30 ADP molecules into 30 ATP molecules
- 32 ADP molecules into 32 ATP molecules
Answer ✔ (b) 38 ADP molecules into 38 ATP molecules
Explanation: 38 ADP molecules into 38 ATP molecules
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.22 Most of the energy of the carbohydrates is released by oxidation when
- Pyruvic acid is converted into CO2 and H2O
- Pyruvic acid is converted into acetyl Co-A
- Sugar is converted into pyruvic acid
- Glucose is converted into alcohol and CO2
Answer ✔ (a) Pyruvic acid is converted into CO2 and H2O
Explanation: Pyruvic acid is converted into CO2 and H2O
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.23 Acetyl CoA combine with oxalo-acetate in presence of condensing enzyme citrate synthase to form 6-C compound called
- Malic acid
- Tartaric acid
- Pyruvic acid
- Citric acid
Answer ✔ (d) Citric acid
Explanation: Citric acid
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Q.24 Number of oxygen atoms required for aerobic oxidation of one pyruvate
- 10
- 8
- 5
- 12
Answer ✔ (a) 10
Explanation: 10 Number of oxygen atoms required for aerobic oxidation of one pyruvate
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.25 Most of the enzymes of the TCA cycle are present in
- Intermembrane space of mitochondria
- Mitochondrial matrix
- Inner membrane of mitochondria
- Cytoplasm
Answer ✔ (b) Mitochondrial matrix
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.1 R.Q is ratio of
- CO2 produced to substarate consumed
- CO2 produced to O2 consumed
- oxygen consumed to CO2 produced
- oxygen consumed to water produced
Answer ✔ (b) CO2 produced to O2 consumed
Explanation: CO2 produced to O2 consumed
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.2 Angiosperm pollen is generally released at the
- 1 – celled stage
- 2 – celled stage
- 3 – celled stage
- male gamete formation stage
Answer ✔ (b) 2 – celled stage
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Q.3 The complete oxidation of pyruvate take place in
- cell cytoplasm
- inner mitochondrial membrane
- mitochondrial matrix
- nucleus
Answer ✔ (c) mitochondrial matrix
Explanation: Pyruvate is transported from cytoplasm into the mitochondria. The complete oxidation of pyruvate takes place in matrix of mitochondria
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.4 Which enzyme catalyses the reaction below? Pyruvic acid → Carbon dioxide + Ethanol
- Pyruvic acid decarboxylase
- Alcohol dehydrogenase
- None of these
- Both of these
Answer ✔ (d) Both of these
Explanation: In fermentation, the incomplete oxidation of glucose is achieved under anaerobic conditions by sets of reactions in which pyruvic acid is converted to carbon dioxide and ethanol.
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.5 TCA cycle was discovered by
- Otto Meyerhof
- Hans Kreb
- Gustav Embden
- All of these
Answer ✔ (b) Hans Kreb
Explanation: TCA cycle or tricarboxylic acid cycle was given by Hans Kreb. So it is also called as Kreb cycle.
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.6 Which one of the following describes the spikelet of a cereal or grass plant
- inferior ovary
- dehiscent fruit
- pair of glumes
- fused calyx
Answer ✔ (c) pair of glumes
Explanation: pair of glumes
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.7 Malacophily means
- pollination by wind
- pollination by water
- pollination by insects
- pollination by snails
Answer ✔ (d) pollination by snails
Explanation: pollination by snails
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.8 Herkogamy is a contrivance for
- allogamy
- autogamy
- chasmogamy
- cleistogamy
Answer ✔ (a) allogamy
Explanation: allogamy
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.9 Out of 36 ATP molecules produced per glucose molecule during respiration
- 2 are produced outside glycolysis and 34 during repiratory chain
- 2 are produced outside mitochondria and 34 inside the mitochondria
- all the formed inside mitochondria
- 2 during glycolysis and 34 during kreds cycle
Answer ✔ (b) 2 are produced outside mitochondria and 34 inside the mitochondria
Explanation: 2 are produced outside mitochondria and 34 inside the mitochondria
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.10 Complete the reaction. _________ + O2 → CO2 + _______ + Energy
- C6H12O6, 2H2O
- C12H22O11, 6H2O
- C6H12O6, 6H2O
- C12H22O11, 11H2O
Answer ✔ (c) C6H12O6, 6H2O
Explanation: C6H12O6 + 6O2 → 6CO2 + 6H2O + Energy
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.11 The significant morphological feature of passion flower is the presence of
- numerous corolla
- androphore
- gynophore
- androgynophore
Answer ✔ (b) androphore
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.12 The final electron acceptor in electron transport chain is
- Cytochrome C
- FADH
- NADH
- oxygen
Answer ✔ (d) oxygen
Explanation: Oxygen acts as the final electron acceptor in electron transport chain.
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Q.13 Which of the following acts as mobile carrier for transfer of electrons between complex III and complex IV?
- Cytochrome c
- cytochrome a3
- cytochrome a
- FADH2
Answer ✔ (a) Cytochrome c
Explanation: Cytochrome c is a small protein attached to outer surface of the inner membrane and acts as mobile carrier for transfer of electrons between complex III and IV.
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.14 Aleurone layer takes part in
- protection of delicate embryo
- enzyme synthesis
- transfer of food to cotyledons
- transfer of food from cotyledons to embryo tips
Answer ✔ (b) enzyme synthesis
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Q.15 A characteristic of drupe is
- fleshy seed coat
- stony pericarp
- stony mesocarp
- stony endocarp
Answer ✔ (d) stony endocarp
Explanation: stony endocarp is characteristic of drupe is
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.16 Incomplete oxidation of glucose into pyruvic acid with several intermediate steps is know as
- TCA pathway
- Glycolysis
- Hms pathway
- Glycolysis
Answer ✔ (b) Glycolysis
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Q.17 End product of glycolysis is
- acetyl Coenzyme A
- PEP
- pyruvate
- OAA
Answer ✔ (c) pyruvate
Explanation: The end product of glycolysis is pyruvate.
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Q.18 Respiratory enzymes are located in
- mitochondrial matrix
- Cristae
- perimitochondrial space
- outer membrane
Answer ✔ (b) Cristae
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Q.19 Respiratory quotient of carbohydrates is
- 0.9
- 1.2
- 1
- 0
Answer ✔ (c) 1
Explanation: RQ i.e. respiratory quotient is 1.RQ = volume of CO2 evolved / volume of O2 consumed
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Q.20 One molecule of glucose yields ___ ATP molecules in aerobic respiration.
- 2
- 16
- 38
- 42
Answer ✔ (c) 38
Explanation: One molecule of glucose yields 38 molecules of ATP during aerobic respiration.
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Q.21 When one glucose molecule is completely oxidised, it changes:
- 36 ADP molecules into 36 ATP molecules
- 38 ADP molecules into 38 ATP molecules
- 30 ADP molecules into 30 ATP molecules
- 32 ADP molecules into 32 ATP molecules
Answer ✔ (b) 38 ADP molecules into 38 ATP molecules
Explanation: 38 ADP molecules into 38 ATP molecules
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Q.22 Most of the energy of the carbohydrates is released by oxidation when
- Pyruvic acid is converted into CO2 and H2O
- Pyruvic acid is converted into acetyl Co-A
- Sugar is converted into pyruvic acid
- Glucose is converted into alcohol and CO2
Answer ✔ (a) Pyruvic acid is converted into CO2 and H2O
Explanation: Pyruvic acid is converted into CO2 and H2O
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.23 Acetyl CoA combine with oxalo-acetate in presence of condensing enzyme citrate synthase to form 6-C compound called
- Malic acid
- Tartaric acid
- Pyruvic acid
- Citric acid
Answer ✔ (d) Citric acid
Explanation: Citric acid
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.24 Number of oxygen atoms required for aerobic oxidation of one pyruvate
- 10
- 8
- 5
- 12
Answer ✔ (a) 10
Explanation: 10 Number of oxygen atoms required for aerobic oxidation of one pyruvate
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.25 Most of the enzymes of the TCA cycle are present in
- Intermembrane space of mitochondria
- Mitochondrial matrix
- Inner membrane of mitochondria
- Cytoplasm
Answer ✔ (b) Mitochondrial matrix
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.1 The rate of photosynthesis is controlled by
- the rate of light reaction
- the rate of dark reaction
- the rates of both light and dark reactions
- none of the above
Answer ✔ (b) the rate of dark reaction
Explanation: the rate of dark reaction
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Q.2 The end product of the Calvin cycle is ______.
- RuBP
- PGAL
- PGA
- ADP + NADP
Answer ✔ (a) RuBP
Explanation: RuBP
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Q.3 The primary carbon dioxide acceptor in C4 cycle is
- malic acid
- phosphoenol pyruvate
- rubisco
- aspartic acid
Answer ✔ (b) phosphoenol pyruvate
Explanation: The primary carbon dioxide acceptor in C4 pathway is phosphoenol pyruvate
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Q.4 The law of limiting factor was given by
- Calvin
- Blackman
- Priestley
- None of these
Answer ✔ (b) Blackman
Explanation: If a chemical process is affected by more than one factor, then its rate will be detrmined by the factor which is nearest to its minimal value
General Science • Biology • NEET UG • NEET UG Preparation
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Q.5 The metabolic pathway which produces carbohydrate is
- Calvin cycle
- Glycolysis
- Cyclic electron pathway
- Krebs cycle
Answer ✔ (a) Calvin cycle
Explanation: Calvin cycle
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Q.6 Manganese is required in
- Chlorophyll synthesis
- Nucleic acid synthesis
- Plant cell wall formation
- Photolysis of water during photosynthesis
Answer ✔ (d) Photolysis of water during photosynthesis
Explanation: Photolysis of water during photosynthesis
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Q.7 Oxidative phosphorylation refers to
- Anaerobic production of ATP
- The citric acid cycle production of ATP
- Production of ATP by chemiosmosis
- Alcoholic fermentation
Answer ✔ (c) Production of ATP by chemiosmosis
Explanation: Production of ATP by chemiosmosis
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Q.8 Which of the following is not an accessory pigment?
- Carotene
- Chlorophyll a
- Chlorophyll b
- Xanthophyll
Answer ✔ (b) Chlorophyll a
Explanation: Chlorophyll a is a primary pigment.
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Q.9 Besides water and CO2, which is more essential a raw material for food formation
- light
- oxygen
- NAD
- mineral salt
Answer ✔ (a) light
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Q.10 In actively gro – wing young plants, the best data for estimating the rate of photosynthesis would be
- ratio of oxygen evolved to carbon dioxide absorbed
- increase in fresh weight
- increase in dry weight
- increase in carbohydrate
Answer ✔ (a) ratio of oxygen evolved to carbon dioxide absorbed
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Q.11 Discovery of Emerson effect has already shown the
- two distinct photochemical reactions
- light and dark reactions of photosynthesis
- photophosphorylation
- photorespiration
Answer ✔ (a) two distinct photochemical reactions
Explanation: two distinct photochemical reactions
General Science • Biology • NEET UG • NEET UG Preparation
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Q.12 Translocation of sugar in flowering plants occurs in the form of
- glucose
- sucrose
- starch
- maltose
Answer ✔ (b) sucrose
Explanation: sucrose is used for translocation of sugar in flowering plants
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Q.13 Where are thylakoids and grana located?
- Lysosomes
- Mitochondria
- Chloroplasts
- Golgi apparatus
Answer ✔ (c) Chloroplasts
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Q.14 Who enunciated the law of limiting factor for photosynthesis?
- Robert Emerson
- Ruben
- Blackman
- Calvin
Answer ✔ (c) Blackman
Explanation: Blackman enunciated the law of limiting factor for photosynthesis
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Q.15 Which one of the following statement is true for ATP?
- ATP is prosthetic part of an enzyme
- ATP is an enzyme
- ATP is organic ions of enzyme
- ATP is a Co-enzyme
Answer ✔ (d) ATP is a Co-enzyme
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Q.16 Kranz anatomy is a feature of
- C3 plants
- CAM plants
- C4 plants
- All of these
Answer ✔ (c) C4 plants
Explanation: Kranz anatomy is a feature of C4 plants. Kranz means wreath.It tells about the arrangement of cells
General Science • Biology • NEET UG • NEET UG Preparation
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Q.17 Which of the following is a 4-carbon compound?
- Oxaloacetic acid
- Phosphoglyceric acid
- Ribulose biphosphate
- Phosphoenolpyruvate
Answer ✔ (a) Oxaloacetic acid
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Q.18 Which of the following process (C4 cycle) occurs in bundle sheath cells?
- Regeneration
- Fixation
- Carboxylation
- Decarboxylation
Answer ✔ (d) Decarboxylation
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Q.19 Light reactions of photosynthesis occurs in
- stroma
- thylakoid
- grana
- cytoplasm of cell
Answer ✔ (c) grana
Explanation: Light reactions of photosynthesis occurs in grana.
General Science • Biology • NEET UG • NEET UG Preparation
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Q.20 Water stress causes
- opening of stomata
- increase in metabolic rate
- wilting of leaves
- lesser availability of carbon dioxide
Answer ✔ (c) wilting of leaves
Explanation: Water stress causes closure of stomata. Since stomata is closed carbon dioxide available to plants is less.
General Science • Biology • NEET UG • NEET UG Preparation
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Q.21 During photochemical reaction of photosynthesis–
- liberation of O2 takes place
- Formation of ATP and NADPH2 take place
- Liberation of O2, formation of ATP, and NADPH2 takes place
- Assimilation of CO2 takes place
Answer ✔ (c) Liberation of O2, formation of ATP, and NADPH2 takes place
General Science • Biology • NEET UG • NEET UG Preparation
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Q.22 In the half-leaf experiment of photosynthesis, KOH solution is used because
- It provides O2 to the leaf.
- It provides moisture to the leaf.
- t helps in CO2 fixation
- It absorbs CO2
Answer ✔ (d) It absorbs CO2
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Q.23 Structurally, chlorophyll a and b are different as
- Chl a has a methyl group and Chl b has an aldehyde group.
- Chl a has an aldehyde group and Chl b has a methyl group.
- Chl a has an ethyl group and Chl b has an aldehyde group
- Chl a has a carboxyl group and Chl b has an aldehyde group.
Answer ✔ (a) Chl a has a methyl group and Chl b has an aldehyde group.
General Science • Biology • NEET UG • NEET UG Preparation
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Q.24 Fixation of one CO2 molecule through Calvin cycle requires:
- 1 ATP and 2NADPH2
- 2ATP and 2NADPH2
- 3ATP and 2NADPH2
- 2ATP and 1NADPH2
Answer ✔ (c) 3ATP and 2NADPH2
Explanation: 3ATP and 2NADPH2
General Science • Biology • NEET UG • NEET UG Preparation
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Q.25 Which one of the following statements about cytochrome P-450 is wrong?
- It is a colored cell
- It is an enzyme involved in oxidation reaction
- It has an important role in metabolism
- It contains iron
Answer ✔ (a) It is a colored cell
General Science • Biology • NEET UG • NEET UG Preparation
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Q.1 The rate of photosynthesis is controlled by
- the rate of light reaction
- the rate of dark reaction
- the rates of both light and dark reactions
- none of the above
Answer ✔ (b) the rate of dark reaction
Explanation: the rate of dark reaction
General Science • Biology • NEET UG • NEET UG Preparation
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Q.2 The end product of the Calvin cycle is ______.
- RuBP
- PGAL
- PGA
- ADP + NADP
Answer ✔ (a) RuBP
Explanation: RuBP
General Science • Biology • NEET UG • NEET UG Preparation
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Q.3 The primary carbon dioxide acceptor in C4 cycle is
- malic acid
- phosphoenol pyruvate
- rubisco
- aspartic acid
Answer ✔ (b) phosphoenol pyruvate
Explanation: The primary carbon dioxide acceptor in C4 pathway is phosphoenol pyruvate
General Science • Biology • NEET UG • NEET UG Preparation
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Q.4 The law of limiting factor was given by
- Calvin
- Blackman
- Priestley
- None of these
Answer ✔ (b) Blackman
Explanation: If a chemical process is affected by more than one factor, then its rate will be detrmined by the factor which is nearest to its minimal value
General Science • Biology • NEET UG • NEET UG Preparation
303 of 536
Q.5 The metabolic pathway which produces carbohydrate is
- Calvin cycle
- Glycolysis
- Cyclic electron pathway
- Krebs cycle
Answer ✔ (a) Calvin cycle
Explanation: Calvin cycle
General Science • Biology • NEET UG • NEET UG Preparation
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Q.6 Manganese is required in
- Chlorophyll synthesis
- Nucleic acid synthesis
- Plant cell wall formation
- Photolysis of water during photosynthesis
Answer ✔ (d) Photolysis of water during photosynthesis
Explanation: Photolysis of water during photosynthesis
General Science • Biology • NEET UG • NEET UG Preparation
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Q.7 Oxidative phosphorylation refers to
- Anaerobic production of ATP
- The citric acid cycle production of ATP
- Production of ATP by chemiosmosis
- Alcoholic fermentation
Answer ✔ (c) Production of ATP by chemiosmosis
Explanation: Production of ATP by chemiosmosis
General Science • Biology • NEET UG • NEET UG Preparation
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Q.8 Which of the following is not an accessory pigment?
- Carotene
- Chlorophyll a
- Chlorophyll b
- Xanthophyll
Answer ✔ (b) Chlorophyll a
Explanation: Chlorophyll a is a primary pigment.
General Science • Biology • NEET UG • NEET UG Preparation
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Q.9 Besides water and CO2, which is more essential a raw material for food formation
- light
- oxygen
- NAD
- mineral salt
Answer ✔ (a) light
General Science • Biology • NEET UG • NEET UG Preparation
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Q.10 In actively gro – wing young plants, the best data for estimating the rate of photosynthesis would be
- ratio of oxygen evolved to carbon dioxide absorbed
- increase in fresh weight
- increase in dry weight
- increase in carbohydrate
Answer ✔ (a) ratio of oxygen evolved to carbon dioxide absorbed
General Science • Biology • NEET UG • NEET UG Preparation
309 of 536
Q.11 Discovery of Emerson effect has already shown the
- two distinct photochemical reactions
- light and dark reactions of photosynthesis
- photophosphorylation
- photorespiration
Answer ✔ (a) two distinct photochemical reactions
Explanation: two distinct photochemical reactions
General Science • Biology • NEET UG • NEET UG Preparation
310 of 536
Q.12 Translocation of sugar in flowering plants occurs in the form of
- glucose
- sucrose
- starch
- maltose
Answer ✔ (b) sucrose
Explanation: sucrose is used for translocation of sugar in flowering plants
General Science • Biology • NEET UG • NEET UG Preparation
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Q.13 Where are thylakoids and grana located?
- Lysosomes
- Mitochondria
- Chloroplasts
- Golgi apparatus
Answer ✔ (c) Chloroplasts
General Science • Biology • NEET UG • NEET UG Preparation
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Q.14 Who enunciated the law of limiting factor for photosynthesis?
- Robert Emerson
- Ruben
- Blackman
- Calvin
Answer ✔ (c) Blackman
Explanation: Blackman enunciated the law of limiting factor for photosynthesis
General Science • Biology • NEET UG • NEET UG Preparation
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Q.15 Which one of the following statement is true for ATP?
- ATP is prosthetic part of an enzyme
- ATP is an enzyme
- ATP is organic ions of enzyme
- ATP is a Co-enzyme
Answer ✔ (d) ATP is a Co-enzyme
General Science • Biology • NEET UG • NEET UG Preparation
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Q.16 Kranz anatomy is a feature of
- C3 plants
- CAM plants
- C4 plants
- All of these
Answer ✔ (c) C4 plants
Explanation: Kranz anatomy is a feature of C4 plants. Kranz means wreath.It tells about the arrangement of cells
General Science • Biology • NEET UG • NEET UG Preparation
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Q.17 Which of the following is a 4-carbon compound?
- Oxaloacetic acid
- Phosphoglyceric acid
- Ribulose biphosphate
- Phosphoenolpyruvate
Answer ✔ (a) Oxaloacetic acid
General Science • Biology • NEET UG • NEET UG Preparation
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Q.18 Which of the following process (C4 cycle) occurs in bundle sheath cells?
- Regeneration
- Fixation
- Carboxylation
- Decarboxylation
Answer ✔ (d) Decarboxylation
General Science • Biology • NEET UG • NEET UG Preparation
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Q.19 Light reactions of photosynthesis occurs in
- stroma
- thylakoid
- grana
- cytoplasm of cell
Answer ✔ (c) grana
Explanation: Light reactions of photosynthesis occurs in grana.
General Science • Biology • NEET UG • NEET UG Preparation
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Q.20 Water stress causes
- opening of stomata
- increase in metabolic rate
- wilting of leaves
- lesser availability of carbon dioxide
Answer ✔ (c) wilting of leaves
Explanation: Water stress causes closure of stomata. Since stomata is closed carbon dioxide available to plants is less.
General Science • Biology • NEET UG • NEET UG Preparation
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Q.21 During photochemical reaction of photosynthesis–
- liberation of O2 takes place
- Formation of ATP and NADPH2 take place
- Liberation of O2, formation of ATP, and NADPH2 takes place
- Assimilation of CO2 takes place
Answer ✔ (c) Liberation of O2, formation of ATP, and NADPH2 takes place
General Science • Biology • NEET UG • NEET UG Preparation
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Q.22 In the half-leaf experiment of photosynthesis, KOH solution is used because
- It provides O2 to the leaf.
- It provides moisture to the leaf.
- t helps in CO2 fixation
- It absorbs CO2
Answer ✔ (d) It absorbs CO2
General Science • Biology • NEET UG • NEET UG Preparation
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Q.23 Structurally, chlorophyll a and b are different as
- Chl a has a methyl group and Chl b has an aldehyde group.
- Chl a has an aldehyde group and Chl b has a methyl group.
- Chl a has an ethyl group and Chl b has an aldehyde group
- Chl a has a carboxyl group and Chl b has an aldehyde group.
Answer ✔ (a) Chl a has a methyl group and Chl b has an aldehyde group.
General Science • Biology • NEET UG • NEET UG Preparation
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Q.24 Fixation of one CO2 molecule through Calvin cycle requires:
- 1 ATP and 2NADPH2
- 2ATP and 2NADPH2
- 3ATP and 2NADPH2
- 2ATP and 1NADPH2
Answer ✔ (c) 3ATP and 2NADPH2
Explanation: 3ATP and 2NADPH2
General Science • Biology • NEET UG • NEET UG Preparation
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Q.25 Which one of the following statements about cytochrome P-450 is wrong?
- It is a colored cell
- It is an enzyme involved in oxidation reaction
- It has an important role in metabolism
- It contains iron
Answer ✔ (a) It is a colored cell
General Science • Biology • NEET UG • NEET UG Preparation
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Q.1 In plants, a common symptom caused by deficiency of P, K, Ca and Mg is the
- bending of leaf tip
- formation of anthocyanins
- poor development of vasculature
- appearance of dead necrotic tissue
Answer ✔ (d) appearance of dead necrotic tissue
Explanation: appearance of dead necrotic tissue
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.2 Function of zinc is
- Closing of stomata
- Biosynthesis of 3-IAA
- Synthesis of chlorophyll
- Oxidation of carbohydrate
Answer ✔ (c) Synthesis of chlorophyll
Explanation: Synthesis of chlorophyll
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.3 Which of the following is a group of micronutrients?
- Ca, Zn, B
- Fe, Mn, Cu
- Cl, C, Ca
- Ni, Mo, H
Answer ✔ (b) Fe, Mn, Cu
Explanation: Iron, mangenese and copper are micronutrients
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.4 The process of conversion of NO2– to N2 is called
- nitrification
- ammonification
- denitrification
- nitrogen fixation
Answer ✔ (c) denitrification
Explanation: The process of conversation of NO2– to N2 is called denitrification
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.5 The formation of first stable product of nitrogen fixation is catalysed by enzyme
- dehydrogenase
- nitrogenase
- isomerase
- none of these
Answer ✔ (b) nitrogenase
Explanation: The first stable product of nitrogen fixation is ammonia obtained from atmospheric nitrogen catalysed enzyme nitrogenase
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.6 Manganese toxicity leads to deficiency of
- iron
- calcium
- magnesium
- all of the above
Answer ✔ (d) all of the above
Explanation: Manganese toxicity causes deficiency of iron, magnesium and calcium
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.7 Chlorosis will occur if a plant is grown in
- dark
- shade
- strong light
- Fe – free medium
Answer ✔ (d) Fe – free medium
Explanation: Fe – free medium
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
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Q.8 Choose the correct function of magnesium
- It is a constituent of several coenzyme
- It activates the enzymes of respiration and photosynthesis.
- It activates enzyme catalase
- It helps in maintaining anion-cation balance
Answer ✔ (b) It activates the enzymes of respiration and photosynthesis.
Explanation: Magnesium is absorbed by plants as Mg2+ it activates the enzymes of respiration and photosynthesis.It is involved in the synthesis of DNA RNA.It is the constituent of ring structure of chlorophyll.
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
332 of 536
Q.9 Mineral salts which are absorbed by the roots from soil are in the form of
- Dilute solution
- Very concentrated solution
- Concentrated solution
- Very dilute solution
Answer ✔ (d) Very dilute solution
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
333 of 536
Q.10 Which one of the following mineral elements plays an in biological nitrogen fixation?
- Copper
- Manganese
- Zinc
- Molybdenum
Answer ✔ (d) Molybdenum
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
334 of 536
Q.11 Oxygen scavangers present in root nodules of legumes is
- haemoglobin
- leg haemoglobin
- cyano haemoglobin
- none of these
Answer ✔ (b) leg haemoglobin
Explanation: Leg-haemoglobin is the oxygen scavanger in root nodules of legumes
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
335 of 536
Q.12 Which one of the following is not a micronutrient?
- Magnesium
- Molybdenum
- Boron
- Zinc
Answer ✔ (a) Magnesium
Explanation: Magnesium
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
336 of 536
Q.13 Which of the following is not a macronutrient
- iron
- calcium
- manganese
- phosphorus
Answer ✔ (c) manganese
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
337 of 536
Q.14 Insectivorous plants grow where
- There is carbohydrate deficient soil
- There is nitrogen deficient soil
- Vitamin c is required
- Hormones are required
Answer ✔ (b) There is nitrogen deficient soil
Explanation: There is nitrogen deficient soil
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
338 of 536
Q.15 Phytotron is meant for
- Controlled humidity
- Induction of mutations
- Controlled irradiation
- Growing plants under controlled environment
Answer ✔ (d) Growing plants under controlled environment
Explanation: Growing plants under controlled environment
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
339 of 536
Q.16 Toxicity of which element leads to the appearance of brown spots on leaves
- Mg
- Mn
- Fe
- Cu
Answer ✔ (b) Mn
Explanation: Toxicity of mangenese leads to the appearance of the brown spots with chlorotic veins.
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
340 of 536
Q.17 Presence of phosphorus
- brings about healthy root growth
- promotes fruit ripening
- retards protein formation
- none
Answer ✔ (c) retards protein formation
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
341 of 536
Q.18 Which element is required for opening and closing of stomata?
- P
- K
- Ca
- Na
Answer ✔ (b) K
Explanation: Potassium plays an important role in opening and closing of stomata.
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
342 of 536
Q.19 Exanthema is due to deficiency of
- B
- Mo
- Mn
- Cu
Answer ✔ (d) Cu
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
343 of 536
Q.20 NPK denotes
- Nitrogen, Protein, Kinetin
- Nitrogen, Protein, Potassium
- Nitrogen, Potassium, kinetin
- Nitrogen, Phosphorus, Potassium
Answer ✔ (d) Nitrogen, Phosphorus, Potassium
Explanation: Nitrogen, Phosphorus, Potassium
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
344 of 536
Q.21 The nitrogen exists as two nitrogen atoms joined by
- Di covalent bonds
- tetra covalent bonds
- triple covalent bonds
- monocovalent bond
Answer ✔ (c) triple covalent bonds
Explanation: triple covalent bonds
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
345 of 536
Q.22 Biological nitrogen fixation was discovered by
- Gericke
- Nehar and Sakmann
- Liebig
- Winograndsky
Answer ✔ (d) Winograndsky
Explanation: Winograndsky
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
346 of 536
Q.23 The enzyme involved in biological nitrogen fixation are
- Carboxylase
- Oxygenase
- Dehydrogenase
- Nitrogenase
Answer ✔ (d) Nitrogenase
Explanation: Nitrogenase
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
347 of 536
Q.24 The requirement of micro nutrient are always low if the concentration increases it leads to
- deficiency symptoms
- Cell differentiation
- toxicity
- Cell elongation
Answer ✔ (c) toxicity
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
348 of 536
Q.25 Analysis of xylem sap shows
- presence of enzymes
- presence of organic matter
- presence of nutrients
- presence of mineral salts
Answer ✔ (d) presence of mineral salts
Explanation: presence of mineral salts
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
349 of 536
Q.1 In plants, a common symptom caused by deficiency of P, K, Ca and Mg is the
- bending of leaf tip
- formation of anthocyanins
- poor development of vasculature
- appearance of dead necrotic tissue
Answer ✔ (d) appearance of dead necrotic tissue
Explanation: appearance of dead necrotic tissue
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
350 of 536
Q.2 Function of zinc is
- Closing of stomata
- Biosynthesis of 3-IAA
- Synthesis of chlorophyll
- Oxidation of carbohydrate
Answer ✔ (c) Synthesis of chlorophyll
Explanation: Synthesis of chlorophyll
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
351 of 536
Q.3 Which of the following is a group of micronutrients?
- Ca, Zn, B
- Fe, Mn, Cu
- Cl, C, Ca
- Ni, Mo, H
Answer ✔ (b) Fe, Mn, Cu
Explanation: Iron, mangenese and copper are micronutrients
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
352 of 536
Q.4 The process of conversion of NO2– to N2 is called
- nitrification
- ammonification
- denitrification
- nitrogen fixation
Answer ✔ (c) denitrification
Explanation: The process of conversation of NO2– to N2 is called denitrification
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
353 of 536
Q.5 The formation of first stable product of nitrogen fixation is catalysed by enzyme
- dehydrogenase
- nitrogenase
- isomerase
- none of these
Answer ✔ (b) nitrogenase
Explanation: The first stable product of nitrogen fixation is ammonia obtained from atmospheric nitrogen catalysed enzyme nitrogenase
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
354 of 536
Q.6 Manganese toxicity leads to deficiency of
- iron
- calcium
- magnesium
- all of the above
Answer ✔ (d) all of the above
Explanation: Manganese toxicity causes deficiency of iron, magnesium and calcium
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
355 of 536
Q.7 Chlorosis will occur if a plant is grown in
- dark
- shade
- strong light
- Fe – free medium
Answer ✔ (d) Fe – free medium
Explanation: Fe – free medium
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
356 of 536
Q.8 Choose the correct function of magnesium
- It is a constituent of several coenzyme
- It activates the enzymes of respiration and photosynthesis.
- It activates enzyme catalase
- It helps in maintaining anion-cation balance
Answer ✔ (b) It activates the enzymes of respiration and photosynthesis.
Explanation: Magnesium is absorbed by plants as Mg2+ it activates the enzymes of respiration and photosynthesis.It is involved in the synthesis of DNA RNA.It is the constituent of ring structure of chlorophyll.
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
357 of 536
Q.9 Mineral salts which are absorbed by the roots from soil are in the form of
- Dilute solution
- Very concentrated solution
- Concentrated solution
- Very dilute solution
Answer ✔ (d) Very dilute solution
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
358 of 536
Q.10 Which one of the following mineral elements plays an in biological nitrogen fixation?
- Copper
- Manganese
- Zinc
- Molybdenum
Answer ✔ (d) Molybdenum
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
359 of 536
Q.11 Oxygen scavangers present in root nodules of legumes is
- haemoglobin
- leg haemoglobin
- cyano haemoglobin
- none of these
Answer ✔ (b) leg haemoglobin
Explanation: Leg-haemoglobin is the oxygen scavanger in root nodules of legumes
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
360 of 536
Q.12 Which one of the following is not a micronutrient?
- Magnesium
- Molybdenum
- Boron
- Zinc
Answer ✔ (a) Magnesium
Explanation: Magnesium
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
361 of 536
Q.13 Which of the following is not a macronutrient
- iron
- calcium
- manganese
- phosphorus
Answer ✔ (c) manganese
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
362 of 536
Q.14 Insectivorous plants grow where
- There is carbohydrate deficient soil
- There is nitrogen deficient soil
- Vitamin c is required
- Hormones are required
Answer ✔ (b) There is nitrogen deficient soil
Explanation: There is nitrogen deficient soil
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
363 of 536
Q.15 Phytotron is meant for
- Controlled humidity
- Induction of mutations
- Controlled irradiation
- Growing plants under controlled environment
Answer ✔ (d) Growing plants under controlled environment
Explanation: Growing plants under controlled environment
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
364 of 536
Q.16 Toxicity of which element leads to the appearance of brown spots on leaves
- Mg
- Mn
- Fe
- Cu
Answer ✔ (b) Mn
Explanation: Toxicity of mangenese leads to the appearance of the brown spots with chlorotic veins.
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
365 of 536
Q.17 Presence of phosphorus
- brings about healthy root growth
- promotes fruit ripening
- retards protein formation
- none
Answer ✔ (c) retards protein formation
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
366 of 536
Q.18 Which element is required for opening and closing of stomata?
- P
- K
- Ca
- Na
Answer ✔ (b) K
Explanation: Potassium plays an important role in opening and closing of stomata.
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
367 of 536
Q.19 Exanthema is due to deficiency of
- B
- Mo
- Mn
- Cu
Answer ✔ (d) Cu
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
368 of 536
Q.20 NPK denotes
- Nitrogen, Protein, Kinetin
- Nitrogen, Protein, Potassium
- Nitrogen, Potassium, kinetin
- Nitrogen, Phosphorus, Potassium
Answer ✔ (d) Nitrogen, Phosphorus, Potassium
Explanation: Nitrogen, Phosphorus, Potassium
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
369 of 536
Q.21 The nitrogen exists as two nitrogen atoms joined by
- Di covalent bonds
- tetra covalent bonds
- triple covalent bonds
- monocovalent bond
Answer ✔ (c) triple covalent bonds
Explanation: triple covalent bonds
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
370 of 536
Q.22 Biological nitrogen fixation was discovered by
- Gericke
- Nehar and Sakmann
- Liebig
- Winograndsky
Answer ✔ (d) Winograndsky
Explanation: Winograndsky
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
371 of 536
Q.23 The enzyme involved in biological nitrogen fixation are
- Carboxylase
- Oxygenase
- Dehydrogenase
- Nitrogenase
Answer ✔ (d) Nitrogenase
Explanation: Nitrogenase
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
372 of 536
Q.24 The requirement of micro nutrient are always low if the concentration increases it leads to
- deficiency symptoms
- Cell differentiation
- toxicity
- Cell elongation
Answer ✔ (c) toxicity
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
373 of 536
Q.25 Analysis of xylem sap shows
- presence of enzymes
- presence of organic matter
- presence of nutrients
- presence of mineral salts
Answer ✔ (d) presence of mineral salts
Explanation: presence of mineral salts
General Science • Biology • Botany • Class 11th • NEET UG • NEET UG Preparation
374 of 536
Q.1 Blood corpuscles are formed in the
- Haversian canal
- endosteum
- red bone marrow
- pancreas
Answer ✔ (c) red bone marrow
Explanation: red bone marrow
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
375 of 536
Q.2 Which of the following is absent in female frog?
- Webbed feet
- Copulatory pads
- Tympanum
- All are present
Answer ✔ (b) Copulatory pads
Explanation: Copulatory pads are absent in female frog.These are present on the first digit of the fore limbs.
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
376 of 536
Q.3 Osteoblasts are found in
- blood
- muscle
- Bone
- catrilage
Answer ✔ (c) Bone
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
377 of 536
Q.4 Choose the incorrect statement.
- Vascular system of frog is closed type.
- Frogs have 4-chambered heart.
- During aestivation and hibernation, skin acts as respiratory organ.
- All the statements are correct
Answer ✔ (b) Frogs have 4-chambered heart.
Explanation: Vascular system of frogs is closed and they have 3-chambered heart.
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
378 of 536
Q.5 Which one of the four parts mentioned below is not part of a single uriniferous tubule ?
- Bowman scapsule
- Loop of Henle
- Distal convoluted tubule
- Collecting ducts
Answer ✔ (d) Collecting ducts
Explanation: Collecting ducts
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
379 of 536
Q.6 Ciliated epithelium is present in
- fallopian tubes
- blood vessels
- mid brain
- none of the above
Answer ✔ (a) fallopian tubes
Explanation: Ciliated epithelium is present in inner surface of hollow organs like bronchioles ando fallopian tubes.
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
380 of 536
Q.7 The vascular tissue of blood is made up of
- RBC
- plasma
- platelets
- all of the above
Answer ✔ (d) all of the above
Explanation: all of the above
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
381 of 536
Q.8 Which membrane protects the eyes of frog in water?
- Tympanum
- Skin
- Sebaceous
- Nictitating
Answer ✔ (d) Nictitating
Explanation: Frogs have nictitating membrane which protect their eyes in water.
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
382 of 536
Q.9 Fats are richly found in
- alveolar tissue
- lymph glands
- adipose tissue
- liver cells
Answer ✔ (c) adipose tissue
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
383 of 536
Q.10 The main function of the skin of frog is
- the exchange of respiratory gases
- the storage of fat
- the storage of energy
- to convert light vitamin D
Answer ✔ (a) the exchange of respiratory gases
Explanation: the exchange of respiratory gases
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
384 of 536
Q.11 The ciliated epithelium in our body may be found in
- trachea
- ureter
- bile duct
- intestines
Answer ✔ (a) trachea
Explanation: trachea
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
385 of 536
Q.12 Which one of the following is a scent gland of mammals?
- Bartholin
- Anal
- Prostate
- Adrenal
Answer ✔ (b) Anal
Explanation: Anal
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
386 of 536
Q.13 The characteristic of simple eqithelium is that
- the cells are loosely placed
- they are single – layered in thickness
- cells are tightly packed with no intercelluar spaces
- cells are generally ciliated
Answer ✔ (b) they are single – layered in thickness
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
387 of 536
Q.14 Spot the salivary gland in the following :
- sublingual
- adrenal
- Brunners
- lacrimal
Answer ✔ (a) sublingual
Explanation: sublingual
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
388 of 536
Q.15 Protein not found in the connective tissues is
- actin
- ossein
- collagen
- elastin
Answer ✔ (a) actin
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
389 of 536
Q.16 Tendons connect the following
- bone to bone
- muscle to muscle
- cartilage to muscle
- bone to muscle
Answer ✔ (d) bone to muscle
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
390 of 536
Q.17 Frogs are beneficial to us because
- they protect crops
- they links food web
- they are food to man.
- all of these
Answer ✔ ()
Explanation: Frogs are beneficial to man because they protect crops and eat insects.They maintain ecological balance.They link food chain and food web.Muscular leg of frog is used as food by man
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
391 of 536
Q.18 Which membrane protects the eyes of frog in water?
- Tympanum
- Skin
- Sebaceous
- Nictitating
Answer ✔ (d) Nictitating
Explanation: Frogs have nictitating membrane which protect their eyes in water
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
392 of 536
Q.19 Which of the following helps in locomotion of earthworms?
- Clitellum
- Setae
- Intersegmental grooves
- Nephridiophores
Answer ✔ (c) Intersegmental grooves
Explanation: Setae helps in locomotion of earthworms
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
393 of 536
Q.20 Which is not a part of reproductive system of female cockroach?
- Phallic gland
- Vestibulum
- Gonapophyses
- Collaterial glands
Answer ✔ ()
Explanation: Phallic gland is a part of male reproductive system of cockroach.It helps in formation of spermatophores
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
394 of 536
Q.21 Glands of Zeis are associated with eyelashes. These are modified
- Sweat glands
- Mucous glands
- Sebaceous glands
- Sudoriferous glands
Answer ✔ (c) Sebaceous glands
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
395 of 536
Q.22 The most abundant type of animal tissue in the complex animals is
- Muscle tissue
- Nervous tissue
- Connective tissue
- Epithelial tissue
Answer ✔ (c) Connective tissue
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
396 of 536
Q.23 The epithelium found in the lining layer of stomach and intestine is
- Squamous epithelium
- Cuboidal epithelium
- Columnar epithelium
- Ciliated columnar epithelium
Answer ✔ (c) Columnar epithelium
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
397 of 536
Q.24 In mammals maximum energy is lost by the
- Respiration
- Urine
- Skin
- Stool
Answer ✔ (c) Skin
Explanation: Skin
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
398 of 536
Q.25 Which one of the following contains the largest quantity of extra-cellular material
- Striated muscle
- Areolar tissue
- Stratified epithelium
- Myelinated nerve fibres
Answer ✔ (b) Areolar tissue
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
399 of 536
Q.1 Blood corpuscles are formed in the
- Haversian canal
- endosteum
- red bone marrow
- pancreas
Answer ✔ (c) red bone marrow
Explanation: red bone marrow
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
400 of 536
Q.2 Which of the following is absent in female frog?
- Webbed feet
- Copulatory pads
- Tympanum
- All are present
Answer ✔ (b) Copulatory pads
Explanation: Copulatory pads are absent in female frog.These are present on the first digit of the fore limbs.
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
401 of 536
Q.3 Osteoblasts are found in
- blood
- muscle
- Bone
- catrilage
Answer ✔ (c) Bone
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
402 of 536
Q.4 Choose the incorrect statement.
- Vascular system of frog is closed type.
- Frogs have 4-chambered heart.
- During aestivation and hibernation, skin acts as respiratory organ.
- All the statements are correct
Answer ✔ (b) Frogs have 4-chambered heart.
Explanation: Vascular system of frogs is closed and they have 3-chambered heart.
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
403 of 536
Q.5 Which one of the four parts mentioned below is not part of a single uriniferous tubule ?
- Bowman scapsule
- Loop of Henle
- Distal convoluted tubule
- Collecting ducts
Answer ✔ (d) Collecting ducts
Explanation: Collecting ducts
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
404 of 536
Q.6 Ciliated epithelium is present in
- fallopian tubes
- blood vessels
- mid brain
- none of the above
Answer ✔ (a) fallopian tubes
Explanation: Ciliated epithelium is present in inner surface of hollow organs like bronchioles ando fallopian tubes.
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
405 of 536
Q.7 The vascular tissue of blood is made up of
- RBC
- plasma
- platelets
- all of the above
Answer ✔ (d) all of the above
Explanation: all of the above
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
406 of 536
Q.8 Which membrane protects the eyes of frog in water?
- Tympanum
- Skin
- Sebaceous
- Nictitating
Answer ✔ (d) Nictitating
Explanation: Frogs have nictitating membrane which protect their eyes in water.
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
407 of 536
Q.9 Fats are richly found in
- alveolar tissue
- lymph glands
- adipose tissue
- liver cells
Answer ✔ (c) adipose tissue
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
408 of 536
Q.10 The main function of the skin of frog is
- the exchange of respiratory gases
- the storage of fat
- the storage of energy
- to convert light vitamin D
Answer ✔ (a) the exchange of respiratory gases
Explanation: the exchange of respiratory gases
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
409 of 536
Q.11 The ciliated epithelium in our body may be found in
- trachea
- ureter
- bile duct
- intestines
Answer ✔ (a) trachea
Explanation: trachea
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
410 of 536
Q.12 Which one of the following is a scent gland of mammals?
- Bartholin
- Anal
- Prostate
- Adrenal
Answer ✔ (b) Anal
Explanation: Anal
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
411 of 536
Q.13 The characteristic of simple eqithelium is that
- the cells are loosely placed
- they are single – layered in thickness
- cells are tightly packed with no intercelluar spaces
- cells are generally ciliated
Answer ✔ (b) they are single – layered in thickness
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
412 of 536
Q.14 Spot the salivary gland in the following :
- sublingual
- adrenal
- Brunners
- lacrimal
Answer ✔ (a) sublingual
Explanation: sublingual
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
413 of 536
Q.15 Protein not found in the connective tissues is
- actin
- ossein
- collagen
- elastin
Answer ✔ (a) actin
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
414 of 536
Q.16 Tendons connect the following
- bone to bone
- muscle to muscle
- cartilage to muscle
- bone to muscle
Answer ✔ (d) bone to muscle
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
415 of 536
Q.17 Frogs are beneficial to us because
- they protect crops
- they links food web
- they are food to man.
- all of these
Answer ✔ ()
Explanation: Frogs are beneficial to man because they protect crops and eat insects.They maintain ecological balance.They link food chain and food web.Muscular leg of frog is used as food by man
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
416 of 536
Q.18 Which membrane protects the eyes of frog in water?
- Tympanum
- Skin
- Sebaceous
- Nictitating
Answer ✔ (d) Nictitating
Explanation: Frogs have nictitating membrane which protect their eyes in water
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
417 of 536
Q.19 Which of the following helps in locomotion of earthworms?
- Clitellum
- Setae
- Intersegmental grooves
- Nephridiophores
Answer ✔ (c) Intersegmental grooves
Explanation: Setae helps in locomotion of earthworms
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
418 of 536
Q.20 Which is not a part of reproductive system of female cockroach?
- Phallic gland
- Vestibulum
- Gonapophyses
- Collaterial glands
Answer ✔ ()
Explanation: Phallic gland is a part of male reproductive system of cockroach.It helps in formation of spermatophores
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
419 of 536
Q.21 Glands of Zeis are associated with eyelashes. These are modified
- Sweat glands
- Mucous glands
- Sebaceous glands
- Sudoriferous glands
Answer ✔ (c) Sebaceous glands
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
420 of 536
Q.22 The most abundant type of animal tissue in the complex animals is
- Muscle tissue
- Nervous tissue
- Connective tissue
- Epithelial tissue
Answer ✔ (c) Connective tissue
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
421 of 536
Q.23 The epithelium found in the lining layer of stomach and intestine is
- Squamous epithelium
- Cuboidal epithelium
- Columnar epithelium
- Ciliated columnar epithelium
Answer ✔ (c) Columnar epithelium
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
422 of 536
Q.24 In mammals maximum energy is lost by the
- Respiration
- Urine
- Skin
- Stool
Answer ✔ (c) Skin
Explanation: Skin
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
423 of 536
Q.25 Which one of the following contains the largest quantity of extra-cellular material
- Striated muscle
- Areolar tissue
- Stratified epithelium
- Myelinated nerve fibres
Answer ✔ (b) Areolar tissue
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
424 of 536
Q.1 Radula is found in
- Pila sp
- Chiton sp
- Lamellidens sp
- Pinctada sp
Answer ✔ (a) Pila sp
Explanation: Pila sp.
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
425 of 536
Q.2 Sharks, skates, and rays are also called ______ fishes
- Jawless
- Bony
- Cartilaginous
- Freshwater
Answer ✔ (c) Cartilaginous
Explanation: Cartilaginous
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
426 of 536
Q.3 Turtles are
- Arthropods
- Pisces
- Reptiles
- Molluscs
Answer ✔ (c) Reptiles
Explanation: Reptiles
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
427 of 536
Q.4 The clam nervous system is composed of
- labial palps
- one pair of ganglia
- two pairs of ganglia
- three pairs of ganglia
Answer ✔ (d) three pairs of ganglia
Explanation: hree pairs of ganglia
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
428 of 536
Q.5 Choose the correct pair.
- Hippocampus – 3-chambered heart
- Rana – 2-chambered heart
- Crocodilus – 4-chambered heart
- Pavo – 3-chambered heart
Answer ✔ (c) Crocodilus – 4-chambered heart
Explanation: Crocodilus (crocodile) belongs to class reptilia. It is an exception in reptiles.
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
429 of 536
Q.6 Who wrote the book Systema Naturae?
- Lamarck
- Darwin
- Wallace
- Linnaeus
Answer ✔ (d) Linnaeus
Explanation: Linnaeus
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
430 of 536
Q.7 Which of the following statement is correct?
- Platypus lays eggs
- Camels have biconcave RBCs
- Whales respire by gills
- Bats do not fly
Answer ✔ (a) Platypus lays eggs
Explanation: Platypus lays eggs
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
431 of 536
Q.8 Osteichthyes belongs to
- class amphibia
- super class pisces
- super class tetrapoda
- division agnatha
Answer ✔ (b) super class pisces
Explanation: super class pisces
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
432 of 536
Q.9 Which one of the following groups of animals is correctly matched with its one characteristic feature without even a single exception?
- Mammalia : give birth to young ones
- Reptilia : possess 3-chambered heart with one incompletely divided ventricle
- Chordata : possess a mouth provided with an upper and a lower jaw
- Chondrichthyes : possess cartilaginous endoskeleton
Answer ✔ (d) Chondrichthyes : possess cartilaginous endoskeleton
Explanation: Chondrichthyes : possess cartilaginous endoskeleton
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
433 of 536
Q.10 Which one of the following phylum is characterized by absence of true coelom?
- Annelida
- Mollusca
- Echinodermata
- Nematoda
Answer ✔ (d) Nematoda
Explanation: Nematoda
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
434 of 536
Q.11 Which of the following is a pseudocoelomate?
- Platyhelminthes
- Aschelminthes
- Mollusca
- Hemi-chordates
Answer ✔ (b) Aschelminthes
Explanation: Aschelminthes is a pseudocoelomate.
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
435 of 536
Q.12 Which kind of symmetry occurs in sea anemone?
- Bilateral
- Radial
- Asymmetry
- None of these
Answer ✔ (b) Radial
Explanation: Radial
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
436 of 536
Q.13 Phylum that doesnt have a true coelom is
- Platyhelminthes
- Annelida
- Echinoderms
- Arthropoda
Answer ✔ (a) Platyhelminthes
Explanation: Platyhelminthes
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
437 of 536
Q.14 Male mosquitoes usually feed on
- Garbage
- Human blood
- Flower sap
- All of the above
Answer ✔ (c) Flower sap
Explanation: Flower sap
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
438 of 536
Q.15 Bed Bugs contribute to the spread of
- Typhoid
- Yellow fever
- Typhus
- Trench fever
Answer ✔ (c) Typhus
Explanation: Typhus
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
439 of 536
Q.16 Which one of the following is NOT a characteristic of phylum Annelida?
- Ventral nerve cord
- Closed circulatory system
- Segmentation
- Pseudocoelom
Answer ✔ (d) Pseudocoelom
Explanation: Pseudocoelom
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
440 of 536
Q.17 ______ are devoid of respiratory, excretory and circulatory organs.
- Threadworms
- Sponges
- Tapeworms
- Liver fluke
Answer ✔ (b) Sponges
Explanation: Sponges
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
441 of 536
Q.18 Fluke infections are diseases of the _______ in humans
- Blood
- Bile
- Digestive tract
- Lung
Answer ✔ (c) Digestive tract
Explanation: Digestive tract
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
442 of 536
Q.19 Water-Vascular system is found in
- Sea-anemone
- Sea-pen
- Sea-cucumber
- Sea-horse
Answer ✔ (c) Sea-cucumber
Explanation: Sea-cucumber
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
443 of 536
Q.20 Order Rhynchocephalia consists of
- Tuataras
- Lizards and snakes
- Turtles and tortoises
- Crocodiles, alligators, caimans
Answer ✔ (a) Tuataras
Explanation: Tuataras
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
444 of 536
Q.21 One of the following are not formed in mosquito
- Sporozoites
- Ookinetes
- Oocystes
- Merozoites
Answer ✔ (d) Merozoites
Explanation: Merozoites
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
445 of 536
Q.22 The animals with bilateral symmetry in young stage, and radial pentamerous symmetry in the adult stage, belong to the phylum
- Annelida
- Mollusca
- Cnidaria
- Echinodermata
Answer ✔ (d) Echinodermata
Explanation: Echinodermata
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
446 of 536
Q.23 Which blood vessel carry larva of Ascaris in lungs
- Pulmonary vein
- Hepatic vein
- Carotid artery
- Pulmonary artery
Answer ✔ (d) Pulmonary artery
Explanation: Pulmonary artery
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
447 of 536
Q.24 the excretory product of Ascaris is
- Urea
- Ammonia
- Both A and B
- None
Answer ✔ (a) Urea
Explanation: Urea
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
448 of 536
Q.25 Which one of the following groups of animals is bilaterally symmetrical and triploblastic
- Aschelminthes (round worms)
- Ctenophores
- Sponges
- Coelenterates (Cnidarians)
Answer ✔ (a) Aschelminthes (round worms)
Explanation: Aschelminthes (round worms)
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
449 of 536
Q.1 Radula is found in
- Pila sp
- Chiton sp
- Lamellidens sp
- Pinctada sp
Answer ✔ (a) Pila sp
Explanation: Pila sp.
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
450 of 536
Q.2 Sharks, skates, and rays are also called ______ fishes
- Jawless
- Bony
- Cartilaginous
- Freshwater
Answer ✔ (c) Cartilaginous
Explanation: Cartilaginous
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
451 of 536
Q.3 Turtles are
- Arthropods
- Pisces
- Reptiles
- Molluscs
Answer ✔ (c) Reptiles
Explanation: Reptiles
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
452 of 536
Q.4 The clam nervous system is composed of
- labial palps
- one pair of ganglia
- two pairs of ganglia
- three pairs of ganglia
Answer ✔ (d) three pairs of ganglia
Explanation: hree pairs of ganglia
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
453 of 536
Q.5 Choose the correct pair.
- Hippocampus – 3-chambered heart
- Rana – 2-chambered heart
- Crocodilus – 4-chambered heart
- Pavo – 3-chambered heart
Answer ✔ (c) Crocodilus – 4-chambered heart
Explanation: Crocodilus (crocodile) belongs to class reptilia. It is an exception in reptiles.
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
454 of 536
Q.6 Who wrote the book Systema Naturae?
- Lamarck
- Darwin
- Wallace
- Linnaeus
Answer ✔ (d) Linnaeus
Explanation: Linnaeus
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
455 of 536
Q.7 Which of the following statement is correct?
- Platypus lays eggs
- Camels have biconcave RBCs
- Whales respire by gills
- Bats do not fly
Answer ✔ (a) Platypus lays eggs
Explanation: Platypus lays eggs
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
456 of 536
Q.8 Osteichthyes belongs to
- class amphibia
- super class pisces
- super class tetrapoda
- division agnatha
Answer ✔ (b) super class pisces
Explanation: super class pisces
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
457 of 536
Q.9 Which one of the following groups of animals is correctly matched with its one characteristic feature without even a single exception?
- Mammalia : give birth to young ones
- Reptilia : possess 3-chambered heart with one incompletely divided ventricle
- Chordata : possess a mouth provided with an upper and a lower jaw
- Chondrichthyes : possess cartilaginous endoskeleton
Answer ✔ (d) Chondrichthyes : possess cartilaginous endoskeleton
Explanation: Chondrichthyes : possess cartilaginous endoskeleton
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
458 of 536
Q.10 Which one of the following phylum is characterized by absence of true coelom?
- Annelida
- Mollusca
- Echinodermata
- Nematoda
Answer ✔ (d) Nematoda
Explanation: Nematoda
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
459 of 536
Q.11 Which of the following is a pseudocoelomate?
- Platyhelminthes
- Aschelminthes
- Mollusca
- Hemi-chordates
Answer ✔ (b) Aschelminthes
Explanation: Aschelminthes is a pseudocoelomate.
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
460 of 536
Q.12 Which kind of symmetry occurs in sea anemone?
- Bilateral
- Radial
- Asymmetry
- None of these
Answer ✔ (b) Radial
Explanation: Radial
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
461 of 536
Q.13 Phylum that doesnt have a true coelom is
- Platyhelminthes
- Annelida
- Echinoderms
- Arthropoda
Answer ✔ (a) Platyhelminthes
Explanation: Platyhelminthes
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
462 of 536
Q.14 Male mosquitoes usually feed on
- Garbage
- Human blood
- Flower sap
- All of the above
Answer ✔ (c) Flower sap
Explanation: Flower sap
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
463 of 536
Q.15 Bed Bugs contribute to the spread of
- Typhoid
- Yellow fever
- Typhus
- Trench fever
Answer ✔ (c) Typhus
Explanation: Typhus
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
464 of 536
Q.16 Which one of the following is NOT a characteristic of phylum Annelida?
- Ventral nerve cord
- Closed circulatory system
- Segmentation
- Pseudocoelom
Answer ✔ (d) Pseudocoelom
Explanation: Pseudocoelom
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
465 of 536
Q.17 ______ are devoid of respiratory, excretory and circulatory organs.
- Threadworms
- Sponges
- Tapeworms
- Liver fluke
Answer ✔ (b) Sponges
Explanation: Sponges
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
466 of 536
Q.18 Fluke infections are diseases of the _______ in humans
- Blood
- Bile
- Digestive tract
- Lung
Answer ✔ (c) Digestive tract
Explanation: Digestive tract
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
467 of 536
Q.19 Water-Vascular system is found in
- Sea-anemone
- Sea-pen
- Sea-cucumber
- Sea-horse
Answer ✔ (c) Sea-cucumber
Explanation: Sea-cucumber
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
468 of 536
Q.20 Order Rhynchocephalia consists of
- Tuataras
- Lizards and snakes
- Turtles and tortoises
- Crocodiles, alligators, caimans
Answer ✔ (a) Tuataras
Explanation: Tuataras
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
469 of 536
Q.21 One of the following are not formed in mosquito
- Sporozoites
- Ookinetes
- Oocystes
- Merozoites
Answer ✔ (d) Merozoites
Explanation: Merozoites
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
470 of 536
Q.22 The animals with bilateral symmetry in young stage, and radial pentamerous symmetry in the adult stage, belong to the phylum
- Annelida
- Mollusca
- Cnidaria
- Echinodermata
Answer ✔ (d) Echinodermata
Explanation: Echinodermata
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
471 of 536
Q.23 Which blood vessel carry larva of Ascaris in lungs
- Pulmonary vein
- Hepatic vein
- Carotid artery
- Pulmonary artery
Answer ✔ (d) Pulmonary artery
Explanation: Pulmonary artery
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
472 of 536
Q.24 the excretory product of Ascaris is
- Urea
- Ammonia
- Both A and B
- None
Answer ✔ (a) Urea
Explanation: Urea
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
473 of 536
Q.25 Which one of the following groups of animals is bilaterally symmetrical and triploblastic
- Aschelminthes (round worms)
- Ctenophores
- Sponges
- Coelenterates (Cnidarians)
Answer ✔ (a) Aschelminthes (round worms)
Explanation: Aschelminthes (round worms)
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
474 of 536
Q.1 Which among the following does not exchange o2 with CO2 through simple diffusion
- Earthworms
- Earthworms
- Sponges
- Flatworms
Answer ✔ (b) Earthworms
Explanation: They use moist cuticle for exchange
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
475 of 536
Q.2 Which among the following have well developed respiratory system
- Cockroaches
- Earthworms
- Sponges
- Mammals
Answer ✔ (d) Mammals
Explanation: Mammals well developed system includes lungs, alveoli, bronchi and bronchioles
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
476 of 536
Q.3 How many lobes are present in right lung
- 2
- 5
- 3
- 4
Answer ✔ (c) 3
Explanation: Left lung is 2 lobed whereas right lung is 3 lobed
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
477 of 536
Q.4 Name a sound box which is responsible for sound production
- Pharynx
- Larynx
- Epiglottis
- None of the above
Answer ✔ (b) Larynx
Explanation: Pharynx is common passage for food and air, epiglottis prevent entry of food into wind pipe
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
478 of 536
Q.5 Thoracic chamber is dorsally formed by
- Vertebral column
- Sternum
- Ribs
- Diaphragm
Answer ✔ (a) Vertebral column
Explanation: Sternum is ventrally formed, ribs laterally and diaphragm on the lower side
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
479 of 536
Q.6 Inspiration occurs if the pressure within the lungs is
- More than atm pressure
- Less tha atm pressure
- Equal to atm pressure
- None of the above
Answer ✔ (b) Less tha atm pressure
Explanation: If the pressure is more than expiration occurs
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
480 of 536
Q.7 The part starting from external nostril upto terminal bronchioles is known as
- Conducting part
- Exchange part
- Respiratory part
- None of the above
Answer ✔ (a) Conducting part
Explanation: Alveoli and their ducts form exchange or the respiratory part
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
481 of 536
Q.8 What is the structural and functional unit of lungs
- Bronchioles
- Alveoli
- Bronchi
- Both a and c
Answer ✔ (b) Alveoli
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
482 of 536
Q.9 On an average healthy human breathes how many times per minute
- 12-16
- 15-16
- 20-25
- 72
Answer ✔ (a) 12-16
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
483 of 536
Q.10 What is the inspiratory reserve volume
- 2500-3000 ml
- 500 ml
- 1000-1100 ml
- None of the above
Answer ✔ (a) 2500-3000 ml
Explanation: 500ml is tidal volume, 1000-1100 ml is expiratory reserve volume
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
484 of 536
Q.11 Volume air inspired or expired during normal respiration is known as
- TV
- IRV
- ERV
- RV
Answer ✔ (a) TV
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
485 of 536
Q.12 which among the following is measured by spirometer
- Total lung capacity
- FRC
- RV
- TV
Answer ✔ (d) TV
Explanation: Rest all aren?t measured by spirometer
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
486 of 536
Q.13 Pressure contributed by an individual gas in a mixture of gas is known as
- Partial pressure
- Diffusion pressure
- Osmotic pressure
- None of the above
Answer ✔ (a) Partial pressure
Explanation: Partial pressure is exerted by individual gases
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
487 of 536
Q.14 Solubility of CO2 is how many times higher than O2
- 10-15
- 30-40
- 20-21
- 20-25
Answer ✔ (d) 20-25
Explanation: Its 20-25 times higher
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
488 of 536
Q.15 What is the partial pressure of O2 in atmosphere
- 156
- 159
- 94
- 40
Answer ✔ (b) 159
Explanation: O2 pressure is 159 and co2 is 0.3
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
489 of 536
Q.16 What is the partial pressure of O2 in deoxygenated blood
- 45
- 40
- 95
- 43
Answer ✔ (b) 40
Explanation: C02 pressure in deoxy blood is 45
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
490 of 536
Q.17 How many percent of co2 is carried by plasma in dissolved form
- 6
- 7
- 20-25
- None of the above
Answer ✔ (b) 7
Explanation: 7 percent is carried by plasma
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
491 of 536
Q.18 How many percent of co2 is carried as bicarbonate
- 50
- 97
- 70
- 25
Answer ✔ (c) 70
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
492 of 536
Q.19 Every 100ml of deoxy blood delivers approx
- 2ml of co2 to alveoli
- 3 of co2 to alveoli
- 4ml of co2 to alveoli
- 7ml of co2 to alveoli
Answer ✔ (c) 4ml of co2 to alveoli
Explanation: It delivers of 4ml of co2
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
493 of 536
Q.20 RBC contains very high quantity of which enzyme
- Carbonic anhydrase
- Lysosome
- Ligase
- None of the above
Answer ✔ (a) Carbonic anhydrase
Explanation: Only carbonic anhydrase is present in RBC
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
494 of 536
Q.21 which among the following is caused due to decreased respiratory surface area
- Astma
- Emphysema
- Sclerosis
- None of the above
Answer ✔ (b) Emphysema
Explanation: Astma occurs due to inflammation of bronchioles
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
495 of 536
Q.22 Whose role in respiratory rhythm regulation is insignificant
- Co2
- O2
- Both a and b
- None of the above
Answer ✔ (b) O2
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
496 of 536
Q.23 Pneumotaxic centre is present in which region of brain
- Medulla
- Hypothalamus
- Pons
- None of the above
Answer ✔ (c) Pons
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
497 of 536
Q.24 Which type of curve is formed when percent of haemoglobin is plotted against po2
- Straight line
- Hyperbola
- Sigmoid
- Parabola
Answer ✔ (c) Sigmoid
Explanation: Sigmoid curve is obtained
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
498 of 536
Q.25 which among the following is responsible to shift o2 dissociation curve right
- High Pco2
- Low pco2
- Low H+
- None of the above
Answer ✔ (a) High Pco2
Explanation: Option b and c shift the curve left
General Science • Biology • Zoology • Class 11th • NEET UG • NEET UG Preparation
499 of 536
Q.1 Which of the following are the most and the least electronegative elements in the periodic table?
- Chlorine and Fluorine
- Hydrogen and Helium
- Carbon and Oxygen
- Fluorine and Caesium
Answer ✔ (a) Chlorine and Fluorine
General Science • SSC CHSL • Competitive Exams (SSC, DSSSB, UPSC, RRB, CET, and State Boards) • SSC Combined Graduate Level (SSC CGL)
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Q.2 Which compound of mercury is used as antiseptic?
- Mercuric sulphide
- Mercuric oxide
- Mercuric iodide
- Mercuric chloride
Answer ✔ (d) Mercuric chloride
General Science • SSC CHSL • Competitive Exams (SSC, DSSSB, UPSC, RRB, CET, and State Boards) • SSC Combined Graduate Level (SSC CGL)
501 of 536
Q.3 Which among the following is major component of Gobar Gas?
- Butane
- Ethane
- Propane
- Methane
Answer ✔ (d) Methane
General Science • SSC CHSL • Competitive Exams (SSC, DSSSB, UPSC, RRB, CET, and State Boards) • SSC Combined Graduate Level (SSC CGL)
502 of 536
Q.4 Which of the following is the essential element for batteries used in electric cars?
- Lithium
- Sodium
- Magnesuium
- Bromine
Answer ✔ (a) Lithium
General Science • SSC CHSL • Competitive Exams (SSC, DSSSB, UPSC, RRB, CET, and State Boards) • SSC Combined Graduate Level (SSC CGL)
503 of 536
Q.5 Which of the following is the essential element for batteries used in electric cars?
- Lithium
- Sodium
- Magnesuium
- Bromine
Answer ✔ (a) Lithium
General Science • SSC CHSL • Competitive Exams (SSC, DSSSB, UPSC, RRB, CET, and State Boards) • SSC Combined Graduate Level (SSC CGL)
504 of 536
Q.6 Calcium Magnesium Silicate is commonly called as?
- Borax
- Washing soda
- Baking soda
- Asbestos
Answer ✔ (d) Asbestos
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Q.7 Which among the following chemicals is used in Photography?
- Pottasium chloride
- Silver bromide
- Sodium bromide
- Magnesium chloride
Answer ✔ (b) Silver bromide
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Q.8 Which of the following methods is used to purify Titanium metal?
- Mond process
- Hall-Heroult process
- Van Arkel method
- None of the above
Answer ✔ (c) Van Arkel method
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Q.9 Which of the following Group in the modern periodic table contains Halogens?
- Group 17
- Group 18
- Group 1
- Group 2
Answer ✔ (a) Group 17
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Q.10 Which of the following quantum number is also known as orbital angular momentum?
- Magnetic quantum number
- Principal quantum number
- Azimuthal quantum number
- Electron spin quantum number
Answer ✔ (c) Azimuthal quantum number
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Q.11 Which of these principles state that in the ground state of the atoms, the orbitals are filled in order of their increasing energies?
- Afbau principle
- Hund’s rule of multiplicity
- Pauli’s exclusion principle
- None of the above
Answer ✔ (a) Afbau principle
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Q.12 What is the multiplication factor when the nuclear reactor is said to be critical?
- 0
- 1
- 2
- 10
Answer ✔ (b) 1
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Q.13 Which of the following types a PEM cell belongs to?
- Electrolytic cell
- Fuel cell
- Dry cell
- Galvanic cell
Answer ✔ (b) Fuel cell
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Q.14 Which of the following is not a compound of carbon?
- Cinnabar
- Acetic acid
- Chloroform
- Methane
Answer ✔ (a) Cinnabar
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Q.15 What is the octane number of iso-octane?
- 0
- 1
- 100
- 200
Answer ✔ (c) 100
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Q.16 Which of the following polymer is obtained by the condensation reaction between ethylene glycol and terephthalic acid?
- Terelene
- PMMC
- PVC
- None of the above
Answer ✔ (a) Terelene
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Q.17 Which of these is not a Linear polymer?
- Starch
- Polyethelene
- Nylons
- Polysters
Answer ✔ (a) Starch
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Q.18 Which of the following metals is involved in the anodisation process?
- Aluminium
- Copper
- Calcium
- Bismuth
Answer ✔ (a) Aluminium
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Q.19 Which of these non-metals is commonly used as a general anesthetic?
- Helium
- Fluorine
- Xenon
- Tellurium
Answer ✔ (c) Xenon
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Q.20 Which of the following is produced when wood is burnt in a limited supply of oxygen?
- Charcoal
- Water gas
- Paraffin
- Petroleum
Answer ✔ (a) Charcoal
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Q.1 The process occurring in the presence of oxygen is called… ..
- Anaerobic
- Aerobic
- Glycogenic
- Microaerophilic
Answer ✔ (a) Anaerobic
Explanation:
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Q.2 The process occuring in the absence of oxygen is called… .
- Anaerobic
- Aerobic
- Glycogenic
- Microaerophilic
Answer ✔ (a) Anaerobic
Explanation:
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Q.3 Enzymatic hydrolysis of major nutrients in GIT to yield their simpler components is .....
- Fermentation
- Deglutition
- Glycolysis
- Digestion
Answer ✔ (d) Digestion
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Q.4 Amino acids with carbon chains that can be metabolically converted into glucose or glycogen are called… .
- Metagenic amino acids
- Glucogenic amino acids
- Ketogenic amino acids
- Glutamic amino acids
Answer ✔ (b) Glucogenic amino acids
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Directions:
Q.5 Amino acids with carbon chains that can be metabolically converted into ketone bodies are called… .
- Metagenic amino acids
- Glucogenic amino acids
- Ketogenic amino acids
- Glutamic amino acids
Answer ✔ (c) Ketogenic amino acids
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Q.6 The water soluble fuels which are overproduced during fasting or in untreated diabetes mellitus are called… . .
- Melanin bodies
- Ketone bodies
- Glucose bodies
- Citrate bodies
Answer ✔ (b) Ketone bodies
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Q.7 Energy yielding anaerobic breakdown of glucose yielding lactate, ethanol with some other products is… . ..
- Protein fermentation
- Fat metabolism
- Glucose fermentation
- Nucleic acid fermentation
Answer ✔ (a) Protein fermentation
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Q.8 The biosynthesis of carbohydrates from simpler, non carbohydrate precursors is… . .
- Gluconeogenesis
- Glycogenolysis
- Thermogenesis
- Glycogenesis
Answer ✔ (a) Gluconeogenesis
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Q.9 An oxidative pathway of glucose-6-phosphate is also known as…
- Phosphogluconate pathway
- Pentose phosphate pathway
- Hexose monophosphate pathway
- All of them
Answer ✔ (d) All of them
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Q.10 The process of breakdown of glycogen to blood glucose is … . .
- Gluconeogenesis
- Glycogenesis
- Thermogenesis
- Glycogenolysis
Answer ✔ (d) Glycogenolysis
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Q.1 Which of the following molecule is most abundant in living system?
- Water
- Cellulose
- Protien
- Starch
Answer ✔ (a) Water
Explanation:
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Q.2 Which is the first National park established in India:
- Jim Corbet National Park
- Kanha National Park
- Periyar National Park
- Kanziranga National Park
Answer ✔ (a) Jim Corbet National Park
Explanation:
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Q.1 Which Is Known As The Power House Of The Cell?
- Mitochondria
- Ribosome
- Nucleus
- Golgi apparatus
Answer ✔ (a) Mitochondria
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Q.1 Which Is Known As The Power House Of The Cell?
- Mitochondria
- Ribosome
- Nucleus
- Golgi apparatus
Answer ✔ (a) Mitochondria
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Q.1 Which Of The Following Vitamins Is Soluble In Water?
- A
- D
- E
- C
Answer ✔ (d) C
Explanation: vitamins B and C are water soluble while vitamins A, D, E and K are fat soluble vitamins
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Q.2 The Amino Acid Containing More COOH Groups Than NH2 Are Called
- Basic amino acids
- Neutral amino acids
- Acidic amino acids
- Amphoteric amino acids
Answer ✔ (c) Acidic amino acids
Explanation: COOH - acidic NH2 - basic
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Q.1 The Fat Soluble Vitamins Are
- A,B,D and E
- A,C,D and E
- A,D,E and K
- A,C,D and K
Answer ✔ (c) A,D,E and K
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Q.2 Defficiency Of Which Of The Following Vitamins Causes Bleeding Of Gums And Wounds Takes Longer Time
- Vitamin B1
- Vitamin A
- Vitamin C
- Vitamin K
Answer ✔ (c) Vitamin C
Explanation: Vitamin C is chemically Ascorbic acid.
General Science