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Physiology and Metabolism MCQs | Page - 3

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Q. 21) Light compensation point is the irradiance at which

(A) Net photosynthetic photon flux is zero
(B) There is no photosynthesis
(C) Net CO2 exchange is zero
(D) Quantum yield of photosynthesis is one
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Mr. Dubey • 51.32K Points
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Q. 22) Organisms that ferment glucose may produce any of the following end products, except

(A) Lactic acid
(B) Propionic acid
(C) Alcohol
(D) Oxygen
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Mr. Dubey • 51.32K Points
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Q. 23) In photosynthesis, how many molecules of ATP and NADPH2 are used?

(A) 12 ATP and 18 NADPH2
(B) 10 ATP and NADPH2
(C) 18 ATP and 12 NADPH2
(D) 38 ATP and 23 NADPH2
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Mr. Dubey • 51.32K Points
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Q. 24) The formation of glucose from non-arbohydrate source is known as

(A) Glycogenesis
(B) Gluconeogenesis
(C) Glycogenolysis
(D) Glycolysis
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Mr. Dubey • 51.32K Points
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Q. 25) Standard redox potential for substance ismeasured under standard condition and is expressed as

(A) Mili ampere
(B) Volt
(C) Ohm
(D) All the above
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Mr. Dubey • 51.32K Points
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Q. 26) During glycolysis, fructose-1, 6-diphosphate undergoes-to produce two C3-fragments

(A) Retroaldol reaction
(B) Oxidation
(C) Isomerisation
(D) Hydrolysis
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Q. 27) The uncoupling agent of oxidative phosphorylation is

(A) Barbiturates
(B) Penicillin
(C) Antimycin-A
(D) Dicomarol
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Q. 28) In E. coli, the respiratory chain components are located in the

(A) Plasmids
(B) Cytoplasmic membrane
(C) Cytosol
(D) Mitochondrial membrane
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Mr. Dubey • 51.32K Points
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Q. 29) The reduction phase of Calvin-Benson cycle in Arabidpsis is inhibited. This can be attributed to the inactivation of

(A) Aldolase
(B) Triose phosphate isomerase
(C) Fructose-16, -bisphssphatase
(D) 3-phosphoglycerate kinase
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Mr. Dubey • 51.32K Points
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Q. 30) Pyruvic acid acts as

(A) Hydrogen accepter in aerobic respiration
(B) Intermediate substrate in aerobic respiration
(C) Electron accepter
(D) Hydrogen accepter in fermentation and intermediate substrate in aerobic respiration
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