TCA Cycle problems
- 1. Malate-asparatate shuttle operates in
Options- A. lungs and liver
- B. heart and liver
- C. pancreas and liver
- D. none of these Discuss
Correct Answer: heart and liver
- 2. Why is the TCA cycle the central pathway of metabolism of the cell?
Options- A. It occurs in the center of the cell
- B. Its intermediates are commonly used by other metabolic reactions
- C. All other metabolic pathways depend upon it
- D. None of the above Discuss
Correct Answer: Its intermediates are commonly used by other metabolic reactions
- 3. The first intermediate in TCA cycle is
Options- A. succinate
- B. fumerate
- C. citrate
- D. malate Discuss
Correct Answer: citrate
- 4. Cholesterol can be synthesized de novo in
Options- A. pancreas
- B. intestine
- C. liver
- D. cell membrane Discuss
Correct Answer: liver
- 5. How many ATPs are produced during citric acid cycle?
Options- A. 10
- B. 13
- C. 12
- D. 8 Discuss
Correct Answer: 12
- 6. Which of the following enzyme does not take part in the TCA cycle?
Options- A. Citrate synthase
- B. Iso-citrate dehydrogenase
- C. Pyruvate dehydrogenase
- D. Malate dehydrogenase Discuss
Correct Answer: Pyruvate dehydrogenase
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