Overall, how much ATP is produced when one molecule of glucose is oxidized to 6 molecules of carbon dioxide through glycolysis, aerobic oxidation of pyruvate, the citric acid cycle, and oxidative phosphorylation?

Question

Quizplus · Accepted Answer

Through glycolysis, 4 ATP molecules are produced via substrate-level phosphorylation. The aerobic oxidation of pyruvate produces 6 NADH molecules and 2 ATP molecules. The citric acid cycle produces 2 ATP molecules, 6 NADH molecules, and 2 FADH2 molecules. Finally, oxidative phosphorylation produces approximately 28 ATP molecules per NADH molecule and approximately 30 ATP molecules per FADH2 molecule, for a total of approximately 76 ATP molecules (28 ATP x 6 NADH + 30 ATP x 2 FADH2). Adding up all the ATP produced, the total is approximately 32 ATP molecules.

Overall, How Much ATP Is Produced When One Molecule of Glucose