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Biochemistry

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Carbohydrates

Question
8 out of 40
 

The synthesis of glucose from pyruvate by gluconeogenesis:



A occurs exclusively in the cytosol.

B is inhibited by an elevated level of glucagon.

C requires the participation of biotin.

D involves lactate as an intermediate.

Ans. C requires the participation of biotin

a. Biotin is the coenzyme-prosthetic group of pyruvate carboxylase. The carboxylation of pyruvate occurs in the mitochondria. Glucagon stimulates gluconeogenesis.

b. Lactate is not an intermediate in the conversion of pyruvate to glucose; however, pyruvate can be produced from lactate

Carbohydrates Flashcard List

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