Question

How many ATP molecules are produced from the complete oxidation of a molecule of active acetate or acetyl CoA ?

• A. 38 ATP
• B. 15 ATP
• C. 12 ATP
• D. 4 ATP

Answer 1

The correct option is C 12 ATP

Glucose undergoes glycolysis to form 2 molecules of pyruvate. The pyruvate molecule is converted to 2 molecules of acetyl-CoA. Each molecule of acetyl-CoA enters the Krebs cycle.

1 NADH (3 ATP) molecule is formed when the isocitrate is converted to oxalosuccinate.

1 NADH (3 ATP) is formed during the conversion of ketoglutarate to succinyl-CoA.

1 GTP/ATP is produced when sunnicyl-CoA is converted to succinic acid.

1 FADH${}_2$2 (2 ATP) is produced when succinc acid is converted to fumaric acid.

1 NADH (3 ATP) is formed when malate is converted to oxaloacetate.

So, the correct answer is 12 ATP. Thus, the correct answer is option C.