How much ATP is produced in Krebs cycle?
How much ATP is produced in Krebs cycle?
Cite this post:
Sourav Pan. (2025, April 18). How much ATP is produced in Krebs cycle?. Biology Notes Online. Retrieved from https://biologynotesonline.com/qa/how-much-atp-is-produced-in-krebs-cycle/
Sourav Pan. "How much ATP is produced in Krebs cycle?." Biology Notes Online, 18 April 2025, biologynotesonline.com/qa/how-much-atp-is-produced-in-krebs-cycle/.
Sourav Pan. "How much ATP is produced in Krebs cycle?." Biology Notes Online (blog). April 18, 2025. https://biologynotesonline.com/qa/how-much-atp-is-produced-in-krebs-cycle/.
Answered
The Krebs cycle produces 1 direct ATP (or GTP) per cycle turn through substrate-level phosphorylation. Through oxidative phosphorylation, 3 NADH contribute approximately 7.5 ATP and 1 FADH₂ contributes about 1.5 ATP, bringing the total to approximately 10 ATP equivalents per cycle. As each glucose molecule yields two turns of the Krebs cycle (via two acetyl-CoA molecules), the total ATP yield per glucose molecule is about 20 ATP equivalents.
Cite this post:
Sourav Pan. (2025, April 18). How much ATP is produced in Krebs cycle?. Biology Notes Online. Retrieved from https://biologynotesonline.com/qa/how-much-atp-is-produced-in-krebs-cycle/
Sourav Pan. "How much ATP is produced in Krebs cycle?." Biology Notes Online, 18 April 2025, biologynotesonline.com/qa/how-much-atp-is-produced-in-krebs-cycle/.
Sourav Pan. "How much ATP is produced in Krebs cycle?." Biology Notes Online (blog). April 18, 2025. https://biologynotesonline.com/qa/how-much-atp-is-produced-in-krebs-cycle/.