Is the Krebs cycle aerobic or anaerobic?
Is the Krebs cycle aerobic or anaerobic?
Cite this post:
Sourav Pan. (2025, April 18). Is the Krebs cycle aerobic or anaerobic?. Biology Notes Online. Retrieved from https://biologynotesonline.com/qa/is-the-krebs-cycle-aerobic-or-anaerobic/
Sourav Pan. "Is the Krebs cycle aerobic or anaerobic?." Biology Notes Online, 18 April 2025, biologynotesonline.com/qa/is-the-krebs-cycle-aerobic-or-anaerobic/.
Sourav Pan. "Is the Krebs cycle aerobic or anaerobic?." Biology Notes Online (blog). April 18, 2025. https://biologynotesonline.com/qa/is-the-krebs-cycle-aerobic-or-anaerobic/.
Answered
The Krebs cycle is an aerobic pathway because its operation depends on the presence of oxygen, although it does not directly use molecular oxygen (O₂) in its enzymatic reactions. The high-energy electron carriers (NADH and FADH₂) produced during the cycle donate electrons to the electron transport chain, where oxygen serves as the final electron acceptor. Without oxygen, the electron transport chain halts, leading to an accumulation of reduced cofactors (NADH, FADH₂) and cessation of the Krebs cycle.
Cite this post:
Sourav Pan. (2025, April 18). Is the Krebs cycle aerobic or anaerobic?. Biology Notes Online. Retrieved from https://biologynotesonline.com/qa/is-the-krebs-cycle-aerobic-or-anaerobic/
Sourav Pan. "Is the Krebs cycle aerobic or anaerobic?." Biology Notes Online, 18 April 2025, biologynotesonline.com/qa/is-the-krebs-cycle-aerobic-or-anaerobic/.
Sourav Pan. "Is the Krebs cycle aerobic or anaerobic?." Biology Notes Online (blog). April 18, 2025. https://biologynotesonline.com/qa/is-the-krebs-cycle-aerobic-or-anaerobic/.
