The primary function of the citrate cycle is to oxidize
A) glucose.
B) pyruvate.
C) acetyl-CoA.
D) citrate.

Question

Quizplus · Accepted Answer

The citrate cycle, sometimes called the Krebs cycle or the TCA cycle, is a series of enzyme-catalyzed chemical reactions that occur in the mitochondria of eukaryotic cells. Its primary function is to oxidize acetyl-CoA, which is obtained from the breakdown of glucose, fatty acids, or amino acids. The acetyl-CoA is first combined with oxaloacetate to form citrate, which undergoes a series of reactions to produce ATP, NADH, and FADH2, as well as carbon dioxide and water as waste products. Therefore, option C - acetyl-CoA - is the best choice for the primary substrate of the citrate cycle.

The Primary Function of the Citrate Cycle Is to Oxidize