For each molecule of glucose that is catabolized in glycolysis and the citric acid cycle,how many NADH molecules are produced?
A)4
B)5
C)6
D)10
E)12

Question

Quizplus · Accepted Answer

During glycolysis, 2 NADH molecules are produced per glucose molecule. In the citric acid cycle, 3 NADH molecules are produced per acetyl-CoA, and since 2 acetyl-CoA molecules are produced from one glucose, this results in 6 NADH. Therefore, a total of 2 (glycolysis) + 6 (citric acid cycle) = 8 NADH molecules are produced. However, the correct total is 10 NADH because the conversion of pyruvate to acetyl-CoA also produces 2 NADH molecules.

For Each Molecule of Glucose That Is Catabolized in Glycolysis