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In actively gro – wing young plants, the best data for estimating the rate of photosynthesis would be
General Science Biology NEET UG NEET UG Preparation
Q. 10 of Quiz-1443 (Que-ID : 3078)
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
Ans → (a)ratio of oxygen evolved to carbon dioxide absorbed
Explanation →
This question is taken from this post → Photosynthesis in Plants (Class 11th Biology) Revision Test | MCQs for NEET - attemp/practice
More MCQs in - Photosynthesis in Plants (Class 11th Biology) Revision Test | MCQs for NEET
Q. 1 of Quiz-1443 (Que-ID : 3069)
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
Q. 2 of Quiz-1443 (Que-ID : 3070)
The end product of the Calvin cycle is ______.
- RuBP
- PGAL
- PGA
- ADP + NADP
Q. 3 of Quiz-1443 (Que-ID : 3071)
The primary carbon dioxide acceptor in C4 cycle is
- malic acid
- phosphoenol pyruvate
- rubisco
- aspartic acid
Q. 4 of Quiz-1443 (Que-ID : 3072)
The law of limiting factor was given by
- Calvin
- Blackman
- Priestley
- None of these
Q. 5 of Quiz-1443 (Que-ID : 3073)
The metabolic pathway which produces carbohydrate is
- Calvin cycle
- Glycolysis
- Cyclic electron pathway
- Krebs cycle
Q. 6 of Quiz-1443 (Que-ID : 3074)
Manganese is required in
- Chlorophyll synthesis
- Nucleic acid synthesis
- Plant cell wall formation
- Photolysis of water during photosynthesis
Q. 7 of Quiz-1443 (Que-ID : 3075)
Oxidative phosphorylation refers to
- Anaerobic production of ATP
- The citric acid cycle production of ATP
- Production of ATP by chemiosmosis
- Alcoholic fermentation
Q. 8 of Quiz-1443 (Que-ID : 3076)
Which of the following is not an accessory pigment?
- Carotene
- Chlorophyll a
- Chlorophyll b
- Xanthophyll
Q. 9 of Quiz-1443 (Que-ID : 3077)
Besides water and CO2, which is more essential a raw material for food formation
- light
- oxygen
- NAD
- mineral salt
Q. 10 of Quiz-1443 (Que-ID : 3078)
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
Q. 11 of Quiz-1443 (Que-ID : 3079)
Discovery of Emerson effect has already shown the
- two distinct photochemical reactions
- light and dark reactions of photosynthesis
- photophosphorylation
- photorespiration
Q. 12 of Quiz-1443 (Que-ID : 3080)
Translocation of sugar in flowering plants occurs in the form of
- glucose
- sucrose
- starch
- maltose
Q. 13 of Quiz-1443 (Que-ID : 3081)
Where are thylakoids and grana located?
- Lysosomes
- Mitochondria
- Chloroplasts
- Golgi apparatus
Q. 14 of Quiz-1443 (Que-ID : 3082)
Who enunciated the law of limiting factor for photosynthesis?
- Robert Emerson
- Ruben
- Blackman
- Calvin
Q. 15 of Quiz-1443 (Que-ID : 3083)
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
Q. 16 of Quiz-1443 (Que-ID : 3084)
Kranz anatomy is a feature of
- C3 plants
- CAM plants
- C4 plants
- All of these
Q. 17 of Quiz-1443 (Que-ID : 3085)
Which of the following is a 4-carbon compound?
- Oxaloacetic acid
- Phosphoglyceric acid
- Ribulose biphosphate
- Phosphoenolpyruvate
Q. 18 of Quiz-1443 (Que-ID : 3086)
Which of the following process (C4 cycle) occurs in bundle sheath cells?
- Regeneration
- Fixation
- Carboxylation
- Decarboxylation
Q. 19 of Quiz-1443 (Que-ID : 3087)
Light reactions of photosynthesis occurs in
- stroma
- thylakoid
- grana
- cytoplasm of cell
Q. 20 of Quiz-1443 (Que-ID : 3088)
Water stress causes
- opening of stomata
- increase in metabolic rate
- wilting of leaves
- lesser availability of carbon dioxide
Q. 21 of Quiz-1443 (Que-ID : 3089)
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
Q. 22 of Quiz-1443 (Que-ID : 3090)
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
Q. 23 of Quiz-1443 (Que-ID : 3091)
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.
Q. 24 of Quiz-1443 (Que-ID : 3092)
Fixation of one CO2 molecule through Calvin cycle requires:
- 1 ATP and 2NADPH2
- 2ATP and 2NADPH2
- 3ATP and 2NADPH2
- 2ATP and 1NADPH2
Q. 25 of Quiz-1443 (Que-ID : 3093)
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
More MCQs In - General Science Biology NEET UG NEET UG Preparation
Q. 24 of Quiz- (Que-ID : 3467)
Animals have innate ability to escape from predation. Select the incorrect example:
- Colour change in Chameleon
- Enlargement of body by swallowing air in puffer fish
- Poison fangas of snakes
- Melaninin in moths
Q. 19 of Quiz- (Que-ID : 3212)
Endodermis cells are rich in
- cellulose
- starch grains
- fibers
- resins and wax
Q. 17 of Quiz- (Que-ID : 3435)
Natural genetic engineer is :
- Bacillus subtilis
- Pseudomonas sp
- Escherichia coli
- Agrobacterium tumefaciens
Q. 1 of Quiz- (Que-ID : 3419)
Desired properties of plants and Animals are possible by which reproduction?
- Genetic Engineering
- Chromosomal Engineering
- Ekabana technology
- Bonsai technology
Q. 8 of Quiz- (Que-ID : 3351)
Continued inbreeding, especially close inbreeding generally results in
- inbreeding depression
- inbreeding stimulation
- inbreeding hybridisation
- inbreeding mutation
Q. 14 of Quiz- (Que-ID : 3032)
The ability to regain or recover the lost or injured part of body is
- Aging
- Regeneration
- Abnormal development
- Primary inductio
Q. 16 of Quiz- (Que-ID : 3384)
The masses of bacteria held together by slime and fungal filaments to form mesh-like structures are called as
- primary sludge
- floes
- activated sludge
- anaerobic sludge
Q. 6 of Quiz- (Que-ID : 3324)
Which of the following pathogens causes whooping coough ?
- Legionella spp.
- Burcella melitensis
- Vibrio cholerae
- Burcella melitensis
Q. 5 of Quiz- (Que-ID : 2873)
Which of the following STDs are not completely curable ?
- Chlamydiasis, gonorrhoea, trichomoniasis
- Chancroid syphilis, genital warts
- AIDS, syphilis, hepatitis B
- AIDS, genital herpes, hepatitis B
Q. 20 of Quiz- (Que-ID : 2989)
ANF can cause
- Vasoconstriction
- Vasodilation
- Both a and b
- None of the above
Q. 10 of Quiz- (Que-ID : 3528)
Increased skin cancer and high mutation rate are due to
- Acid Rain
- Ozone Depletion
- CO2 Pollution
- CO Pollution
Q. 18 of Quiz- (Que-ID : 3136)
When a plant is girdled (ringed)
- the root and shoot die at the same time
- the shoot dies first
- the root dies first
- neither root nor shoot will die
Q. 17 of Quiz- (Que-ID : 3535)
Common indicator organism of water pollution is
- Lemna pancicostata
- Eichhomia crassipes
- Escherichia coli
- Entamoeba histolytica
Q. 14 of Quiz- (Que-ID : 2807)
Which of the following is not related to the autonomic nervous system?
- Peristalsis
- Digestion
- Excretion
- Memory and learning
Q. 17 of Quiz- (Que-ID : 3110)
Presence of phosphorus
- brings about healthy root growth
- promotes fruit ripening
- retards protein formation
- none
Q. 8 of Quiz- (Que-ID : 3051)
Herkogamy is a contrivance for
- allogamy
- autogamy
- chasmogamy
- cleistogamy
Q. 4 of Quiz- (Que-ID : 3447)
The number of birth during a given period in the population that are added to the initial density is referred to
- Natality
- Mortality
- Sex-ratio
- None of the above
Q. 7 of Quiz- (Que-ID : 3250)
Which of the following statement is correct?
- Platypus lays eggs
- Camels have biconcave RBCs
- Whales respire by gills
- Bats do not fly
Q. 8 of Quiz- (Que-ID : 3051)
Herkogamy is a contrivance for
- allogamy
- autogamy
- chasmogamy
- cleistogamy
Q. 8 of Quiz- (Que-ID : 3051)
Herkogamy is a contrivance for
- allogamy
- autogamy
- chasmogamy
- cleistogamy
Q. 24 of Quiz- (Que-ID : 3442)
The species used as natural genetic engineer is :
- Agrobacterim tumefaciens
- Bacillus thruingiensis
- Aspergillus
- Drosophila
Q. 11 of Quiz- (Que-ID : 2654)
Volume air inspired or expired during normal respiration is known as
- TV
- IRV
- ERV
- RV
Q. 19 of Quiz- (Que-ID : 3262)
Water-Vascular system is found in
- Sea-anemone
- Sea-pen
- Sea-cucumber
- Sea-horse
Q. 11 of Quiz- (Que-ID : 2829)
The wall of the ovary forms
- pericarp
- fruit wall
- fruit
- both (a) and (b).
Q. 7 of Quiz- (Que-ID : 3050)
Malacophily means
- pollination by wind
- pollination by water
- pollination by insects
- pollination by snails
Q. 18 of Quiz- (Que-ID : 2761)
Testorone is produced by
- Leydigs cell
- Pituitary gland
- Both a and b
- Non of the above
Q. 16 of Quiz- (Que-ID : 3159)
The fastest enzyme known is
- DNA polymerase
- carbonic anhydrase
- carbonic dehydrogenase
- DNA ligase
Q. 19 of Quiz- (Que-ID : 3512)
Which one of the following pairs of geographical areas show maximum biodiversity in our country?
- Sunderbans and Rann of Kutch
- Eastern Ghats and West Bengal
- Eastern Himalayas and Western Ghats
- Kerala and Punjab
Q. 4 of Quiz- (Que-ID : 1581)
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
Q. 1 of Quiz- (Que-ID : 3169)
Blood corpuscles are formed in the
- Haversian canal
- endosteum
- red bone marrow
- pancreas
Q. 2 of Quiz- (Que-ID : 2820)
Which of the following options shows bisexual animals only?
- Amoeba, sponge, leech
- Sponge, cockroach, Amoeba
- Earthworm, sponge, leech
- Tapeworm, earthworm, honeybee
Q. 1 of Quiz- (Que-ID : 3044)
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
Q. 14 of Quiz- (Que-ID : 3007)
Lampbrush chromosomes are observed in
- Mitotic prophase
- Mitotic metaphase
- Meiotic metaphase
- Meiotic prophase
Q. 16 of Quiz- (Que-ID : 2959)
If a double stranded DNA has 20% of cytosine, what will be the percentage of adenine in it ?
- 20%
- 40%
- 30%
- 60%
Q. 23 of Quiz- (Que-ID : 3041)
Formation of seedless fruit without act of fertilisation
- Parthenocarpy
- pseudocarpy
- Apomixis
- Parthenogenesis
Q. 4 of Quiz- (Que-ID : 2722)
Name the classification based on genetic and evolutionary relationship
- Phonetics
- Biosynthesis
- Numerical taxonomy
- Cladistics
Q. 4 of Quiz- (Que-ID : 2997)
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
Q. 15 of Quiz- (Que-ID : 2833)
There is no natural death in single celled organisms like Amoeba and bacteria because
- they cannot reproduce sexually
- they reproduce be binary fission
- parental body is distributed among the offspring
- they are microscopic.
Q. 19 of Quiz- (Que-ID : 3262)
Water-Vascular system is found in
- Sea-anemone
- Sea-pen
- Sea-cucumber
- Sea-horse
Q. 25 of Quiz- (Que-ID : 2968)
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.
Q. 22 of Quiz- (Que-ID : 3065)
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
Q. 7 of Quiz- (Que-ID : 3200)
Callose deposition is found in
- tracheids
- companion cells
- sieve areas
- phloem parenchyma
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