Q. 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
πŸ’¬ Discuss
βœ… Correct Answer: (C) Net CO2 exchange is zero

Q. Organisms that ferment glucose may produce any of the following end products, except

  • (A) Lactic acid
  • (B) Propionic acid
  • (C) Alcohol
  • (D) Oxygen
πŸ’¬ Discuss
βœ… Correct Answer: (C) Alcohol

Q. 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
πŸ’¬ Discuss
βœ… Correct Answer: (C) 18 ATP and 12 NADPH2

Q. The formation of glucose from non-arbohydrate source is known as

  • (A) Glycogenesis
  • (B) Gluconeogenesis
  • (C) Glycogenolysis
  • (D) Glycolysis
πŸ’¬ Discuss
βœ… Correct Answer: (B) Gluconeogenesis

Q. Standard redox potential for substance ismeasured under standard condition and is expressed as

  • (A) Mili ampere
  • (B) Volt
  • (C) Ohm
  • (D) All the above
πŸ’¬ Discuss
βœ… Correct Answer: (B) Volt

Q. During glycolysis, fructose-1, 6-diphosphate undergoes-to produce two C3-fragments

  • (A) Retroaldol reaction
  • (B) Oxidation
  • (C) Isomerisation
  • (D) Hydrolysis
πŸ’¬ Discuss
βœ… Correct Answer: (A) Retroaldol reaction

Q. The uncoupling agent of oxidative phosphorylation is

  • (A) Barbiturates
  • (B) Penicillin
  • (C) Antimycin-A
  • (D) Dicomarol
πŸ’¬ Discuss
βœ… Correct Answer: (C) Antimycin-A

Q. In E. coli, the respiratory chain components are located in the

  • (A) Plasmids
  • (B) Cytoplasmic membrane
  • (C) Cytosol
  • (D) Mitochondrial membrane
πŸ’¬ Discuss
βœ… Correct Answer: (B) Cytoplasmic membrane

Q. 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
πŸ’¬ Discuss
βœ… Correct Answer: (D) 3-phosphoglycerate kinase

Q. 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
πŸ’¬ Discuss
βœ… Correct Answer: (D) Hydrogen accepter in fermentation and intermediate substrate in aerobic respiration

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