Question

15. Which of the following cannot be converted back to glucose:
A. Acetyl-COA
B. Lactate
C. Alanine
D. Propionyl-CoA​

Answer 1

Answer:

c

Explanation:

Answer 2

A. Acetyl-COA cannot be converted back to glucose.

Explanation for the answer:

• Fatty acids and ketogenic amino acids cannot be used to be converted or to be synthesized to form glucose.
• This transition reaction is a type of one-way reaction i.e acetyl-CoA cannot be converted back into pyruvate.
• Therefore, fatty acids can't be used to synthesize glucose as beta-oxidation produces acetyl-CoA.
• Hence, the correct answer among all the options is option A. Acetyl-COA.

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