PHYSIOLOGY
MUSCLE ENERGETICS TCA CYCLE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which of the following is not formed during the Krebs cycle?
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Lactate
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Isocitrate
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Succinate
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Both (a) and (b)
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Explanation:
Detailed explanation-1: -Lactic acid is never a part of citric acid cycle. Acetyl Co A, citric acid and succinic acid are part of citric acid cycle. Lactic acid is produced in anaerobic respiration in muscles. Thus, the correct answer is option D.
Detailed explanation-2: -During anaerobic metabolism when pyruvate is not efficiently metabolized via the Krebs cycle, lactate is formed in high concentration.
Detailed explanation-3: -Acetyl-CoA is not produced during Krebs cycle. It is produced from the decarboxylation of a pyruvate molecule, which occurs before the Krebs cycle can begin.
There is 1 question to complete.