Which of the Following is NOT a Coenzyme for the α-Ketoglutarate

Question

Which of the following is NOT a coenzyme for the α-ketoglutarate dehydrogenase complex?
A)TPP
B)lipoamide
C)NAD⁺
D)biotin

Accepted Answer

Biotin is not a coenzyme for the α-ketoglutarate dehydrogenase complex. The coenzymes for this enzyme are thiamine pyrophosphate (TPP), lipoamide, and NAD⁺.