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Total Questions : 57 | Page 5 of 6 pages
Question 41. . The end product of glycolysis is pyruvate, which enters the citric acid cycle after being converted to
  1.    acetic acid
  2.    acetyl-CoA
  3.    acetaldehyde
  4.    none of these
 Discuss Question
Answer: Option B. -> acetyl-CoA
Question 42. .  Energy that is released from glucose during respiration but not transferred to ATP bonds can be detected as
  1.    CO2
  2.    AMP
  3.    ADP
  4.    heat
 Discuss Question
Answer: Option D. -> heat
Question 43. .  Which of the following is involved in energy production?
  1.    Generation of proton gradients across membranes
  2.    Transport of electrons on organic molecules
  3.    Conversion of compounds with high energy to those of low energy
  4.    All of the above
 Discuss Question
Answer: Option D. -> All of the above
Question 44. . The first intermediate in TCA cycle is
  1.    succinate
  2.    fumerate
  3.    citrate
  4.    malate
 Discuss Question
Answer: Option C. -> citrate
Question 45. . Cholesterol can be synthesized de novo in
  1.    pancreas
  2.    intestine
  3.    liver
  4.    cell membrane
 Discuss Question
Answer: Option C. -> liver
Question 46. .  Which one of the following is not the intermediate of Kreb's cycle?
  1.    Isocitrate
  2.    Succinate
  3.    Fumarate
  4.    Stearate
 Discuss Question
Answer: Option D. -> Stearate
Question 47. . Which of the following enzyme does not take part in the TCA cycle?
  1.    Citrate synthase
  2.    Iso-citrate dehydrogenase
  3.    Pyruvate dehydrogenase
  4.    Malate dehydrogenase
 Discuss Question
Answer: Option C. -> Pyruvate dehydrogenase
Question 48. . Which one is not the main protein in electron transport chain?
  1.    NADH dehydrogenase
  2.    Cytochrome bc1 complex
  3.    Cytochrome oxidase
  4.    Citrate synthease
 Discuss Question
Answer: Option D. -> Citrate synthease
Question 49.
How many ATPs are produced during citric acid cycle?
  1.    10
  2.    13
  3.    12
  4.    8
 Discuss Question
Answer: Option C. -> 12
Question 50.
The FADH2 and NADH produced by the oxidation of one acetyl-CoA results in the synthesis of about-
  1.    3 ATPs
  2.    6 ATPs
  3.    11 ATPs
  4.    15 ATPs
 Discuss Question
Answer: Option C. -> 11 ATPs

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