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Hydrolysis of starch occurs with the help of
Q. 7 of Quiz-1446 (Que-ID : 3933)
Hydrolysis of starch occurs with the help of
- Peptidase
- Amylase
- Sucrose
- Lipase
Ans → (b)Amylase
Explanation → Amylase
This question is taken from this post → Biomolecules class 11 biology test | MCQs for NEET - attemp/practice
More MCQs in - Biomolecules class 11 biology test | MCQs for NEET
Q. 1 of Quiz-1446 (Que-ID : 3927)
Feedback inhibition of enzymes is affected by which of the following
- enzyme
- substrate
- end products
- intermediate end products
Q. 2 of Quiz-1446 (Que-ID : 3928)
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
Q. 3 of Quiz-1446 (Que-ID : 3929)
Insulin is made up of _______ and _______.
- glucose and fructose
- glucose and fructose
- fructose and mannose
- mannose and glucose
Q. 4 of Quiz-1446 (Que-ID : 3930)
Enzymes increase the rate of reaction by
- lowering activation energy
- increasing activation energy
- increasing temperature and pH
- decreasing temperature and pH
Q. 5 of Quiz-1446 (Que-ID : 3931)
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
Q. 6 of Quiz-1446 (Que-ID : 3932)
Which of the following is not a pyrimidine?
- Uracil
- Cytosine
- Guanine
- Thymine
Q. 7 of Quiz-1446 (Que-ID : 3933)
Hydrolysis of starch occurs with the help of
- Peptidase
- Amylase
- Sucrose
- Lipase
Q. 8 of Quiz-1446 (Que-ID : 3934)
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
Q. 9 of Quiz-1446 (Que-ID : 3935)
Which of the following influence feedback inhibition of enzyme?
- End product
- External factors
- Enzyme
- Substrate
Q. 10 of Quiz-1446 (Que-ID : 3936)
Which of the following is not a polysaccharide?
- Lactose
- Starch
- Glycogen
- Dextrin
Q. 11 of Quiz-1446 (Que-ID : 3937)
Inulin is made up of _______ and _______
- glucose and fructose
- glucose and fructose
- fructose and mannose
- mannose and glucose
Q. 12 of Quiz-1446 (Que-ID : 3938)
A protein having both structural and enzymatic traits is
- Collagen
- Trypsin
- Myosin
- Actin
Q. 14 of Quiz-1446 (Que-ID : 3940)
With reference to enzymes, which one of the following statements is true?
- Apoenzyme = Holoenzyme + Coenzyme
- Coenzyme = Apoenzyme + Holoenzyme
- Holoenzyme = Apoenzyme + Coenzyme
- Holoenzyme = Coenzyme ? Apoenzyme
Q. 15 of Quiz-1446 (Que-ID : 3941)
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
Q. 16 of Quiz-1446 (Que-ID : 3942)
The fastest enzyme known is
- DNA polymerase
- carbonic anhydrase
- carbonic dehydrogenase
- DNA ligase
Q. 18 of Quiz-1446 (Que-ID : 3944)
The minimum amount of energy required to initiate a chemical reaction is called
- enzymatic energy
- activation energy
- substrate energy
- initiation energy
Q. 19 of Quiz-1446 (Que-ID : 3945)
Enzymes, vitamins and hormones are common in
- Enhancing oxidative metabolism
- Being synthesised in the body of organisms
- Being proteinaceous
- Regulating metabolism
Q. 20 of Quiz-1446 (Que-ID : 3946)
Nitrogenous bases present in DNA
- Adenine, guanine, cytosine, uracil
- Adenine, guanine, cytosine, thymine
- Adenine, thymine, uracil
- Guanine, uracil
Q. 21 of Quiz-1446 (Que-ID : 3947)
Metabolic intermediates found in living system which are essential for growth and life is called___________
- Saponins
- Tannins
- Secondary metabolite
- Primary metabolites
Q. 22 of Quiz-1446 (Que-ID : 3948)
Enormous diversity of protein molecules is due to
- R groups of amino acids
- Sequence of amino acids
- Peptide bonds
- Amino groups of amino acids
Q. 23 of Quiz-1446 (Que-ID : 3949)
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
Q. 24 of Quiz-1446 (Que-ID : 3950)
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
Q. 25 of Quiz-1446 (Que-ID : 3951)
The most common monomer of carbohydrates is
- Sucrose
- Fructose
- Maltose
- Glucose
More MCQs In - Zoology Class 11th
Q. 2 of Quiz- (Que-ID : 3095)
Function of zinc is
- Closing of stomata
- Biosynthesis of 3-IAA
- Synthesis of chlorophyll
- Oxidation of carbohydrate
Q. 8 of Quiz- (Que-ID : 3934)
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
Q. 21 of Quiz- (Que-ID : 3164)
Metabolic intermediates found in living system which are essential for growth and life is called___________
- Saponins
- Tannins
- Secondary metabolite
- Primary metabolites
Q. 11 of Quiz- (Que-ID : 3154)
Inulin is made up of _______ and _______
- glucose and fructose
- glucose and fructose
- fructose and mannose
- mannose and glucose
Q. 6 of Quiz- (Que-ID : 3174)
Ciliated epithelium is present in
- fallopian tubes
- blood vessels
- mid brain
- none of the above
Q. 6 of Quiz- (Que-ID : 3024)
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
Q. 25 of Quiz- (Que-ID : 3168)
The most common monomer of carbohydrates is
- Sucrose
- Fructose
- Maltose
- Glucose
Q. 6 of Quiz- (Que-ID : 3932)
Which of the following is not a pyrimidine?
- Uracil
- Cytosine
- Guanine
- Thymine
Q. 12 of Quiz- (Que-ID : 3105)
Which one of the following is not a micronutrient?
- Magnesium
- Molybdenum
- Boron
- Zinc
Q. 21 of Quiz- (Que-ID : 3039)
Auxin is synthesised from in apical meristem from amino acid
- Isoleucine
- Methionine
- Niacin
- Tryptophan
Q. 12 of Quiz- (Que-ID : 3455)
A stage of suspended development is called
- Diapause
- Suspend
- Migrate
- Aestivation
Q. 1 of Quiz- (Que-ID : 2769)
Wheat belongs to division
- angiospermae
- gymnospermae
- Poach
- None of the above
Q. 23 of Quiz- (Que-ID : 2791)
In a scientific name, the name of the author is printed in
- Abbreviated
- Capital letter
- Bold
- Italics
Q. 24 of Quiz- (Que-ID : 2667)
Which type of curve is formed when percent of haemoglobin is plotted against po2
- Straight line
- Hyperbola
- Sigmoid
- Parabola
Q. 20 of Quiz- (Que-ID : 2713)
Length of which band get reduced during contraction
- A band
- I band
- Z line
- C band
Q. 25 of Quiz- (Que-ID : 3168)
The most common monomer of carbohydrates is
- Sucrose
- Fructose
- Maltose
- Glucose
Q. 23 of Quiz- (Que-ID : 3216)
Which among the following are elongated or tube like cells with thick and lignified walls and tapering ends?
- Xylem fibres
- Xylem parenchyma
- vessels
- Tracheids
Q. 12 of Quiz- (Que-ID : 2705)
Which of these contain ATP and ATPase binding site
- Actin
- Myosin
- Both a and b
- None of the above
Q. 20 of Quiz- (Que-ID : 3163)
Nitrogenous bases present in DNA
- Adenine, guanine, cytosine, uracil
- Adenine, guanine, cytosine, thymine
- Adenine, thymine, uracil
- Guanine, uracil
Q. 19 of Quiz- (Que-ID : 2712)
The central part of thick filament which isn?t overlapped by thin filaments is called
- H zone
- I band
- A band
- None of the above
Q. 10 of Quiz- (Que-ID : 2753)
Choose the incorrect statement
- Hormones are non-nutrients chemicals
- Exocrine glands are ductless glands
- Invertebrates have simple endocrine system
- All of the above statements are incorrect
Q. 12 of Quiz- (Que-ID : 3255)
Which kind of symmetry occurs in sea anemone?
- Bilateral
- Radial
- Asymmetry
- None of these
Q. 8 of Quiz- (Que-ID : 3176)
Which membrane protects the eyes of frog in water?
- Tympanum
- Skin
- Sebaceous
- Nictitating
Q. 24 of Quiz- (Que-ID : 3167)
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
Q. 21 of Quiz- (Que-ID : 3064)
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
Q. 15 of Quiz- (Que-ID : 3158)
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
Q. 13 of Quiz- (Que-ID : 2626)
Fructose are transported by which mechanism
- Passive transport
- Active transport
- Diffusion
- Facilitated diffusion
Q. 5 of Quiz- (Que-ID : 2618)
Which kind of gland is pancreas
- Exocrine
- Endocrine
- Compound gland
- None of the above
Q. 17 of Quiz- (Que-ID : 3260)
______ are devoid of respiratory, excretory and circulatory organs.
- Threadworms
- Sponges
- Tapeworms
- Liver fluke
Q. 3 of Quiz- (Que-ID : 3096)
Which of the following is a group of micronutrients?
- Ca, Zn, B
- Fe, Mn, Cu
- Cl, C, Ca
- Ni, Mo, H
Q. 6 of Quiz- (Que-ID : 2799)
Which portion of the brain is responsible for various emotions such as pleasure, fear, and happiness?
- Thalamus
- Reticular formation
- Hypothalamus
- Limbic system
Q. 14 of Quiz- (Que-ID : 2907)
Bartholin’s glands are situated
- on the either side of vagina in humans
- on either side of vas deferens in humans
- on either side of penis in humans
- on either side of Fallopian tube in humans
Q. 11 of Quiz- (Que-ID : 3254)
Which of the following is a pseudocoelomate?
- Platyhelminthes
- Aschelminthes
- Mollusca
- Hemi-chordates
Q. 17 of Quiz- (Que-ID : 2885)
Which of the following is correct regarding the consequences of lower population ?
- It increases the poverty of a country
- It leads to shortage of food supply
- It results in unemployment
- All of these
Q. 22 of Quiz- (Que-ID : 2635)
Enamel is originated from which cell
- Amiloblast cell
- Odontioblast cell
- Chief cell
- Peptic cell
Q. 25 of Quiz- (Que-ID : 3193)
Which one of the following contains the largest quantity of extra-cellular material
- Striated muscle
- Areolar tissue
- Stratified epithelium
- Myelinated nerve fibres
Q. 15 of Quiz- (Que-ID : 3008)
Which of the following cellular structures always disappears during mitosis and meiosis?
- Plasma membrane
- Nucleolus and nuclear envelope
- Plastids
- none of these
Q. 20 of Quiz- (Que-ID : 3263)
Order Rhynchocephalia consists of
- Tuataras
- Lizards and snakes
- Turtles and tortoises
- Crocodiles, alligators, caimans
Q. 24 of Quiz- (Que-ID : 2667)
Which type of curve is formed when percent of haemoglobin is plotted against po2
- Straight line
- Hyperbola
- Sigmoid
- Parabola
Q. 18 of Quiz- (Que-ID : 3386)
n the sewage treatment, bacterial floes are allowed to sediment in a settling tank. This sediment is called as
- inactivated sludge
- activated sludge
- primary sludge
- secondary sluge
Q. 14 of Quiz- (Que-ID : 2707)
Which joint is present between carpal and metacarpal of thumb
- Saddle joint
- Pivot
- Hinge
- Condyloid
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