Which of the following vitamins are precursors to coenzymes that are necessary for the formation of succinyl CoA from α-ketoglutarate?
A) thiamine, riboflavin, niacin, lipoic acid, and pantothenic acid
B) thiamine, riboflavin, niacin, lipoic acid, pantothenic acid, and biotin
C) thiamine, riboflavin, niacin, and biotin
D) thiamine, riboflavin, and lipoic acid
E) None of the above.

Question

Quizplus · Accepted Answer

The conversion of α-ketoglutarate to succinyl CoA in the citric acid cycle involves a multi-enzyme complex that requires several coenzymes derived from vitamins: thiamine (as thiamine pyrophosphate), riboflavin (as FAD), niacin (as NAD+), lipoic acid, and pantothenic acid (as CoA).

Which of the Following Vitamins Are Precursors to Coenzymes That