The active ______ coenzyme is needed to convert pyruvate into acetyl-CoA.
A) folate
B) niacin
C) riboflavin
D) thiamin

Question

The active ______ coenzyme is needed to convert pyruvate into acetyl-CoA. 
A) folate 
B) niacin 
C) riboflavin 
D) thiamin

Quizplus · Accepted Answer

The active coenzyme needed to convert pyruvate into acetyl-CoA is pyruvate dehydrogenase complex (PDH), which requires thiamin as a coenzyme. Therefore, the correct choice is D, thiamin. Folate, niacin, and riboflavin are involved in other metabolic pathways and do not play a direct role in the conversion of pyruvate to acetyl-CoA.

The Active ______ Coenzyme Is Needed to Convert Pyruvate into Acetyl-CoA