Oxygen is required for Krebs cycle. In the electron transport chain, oxygen is the final acceptor of electrons. The electron transport chain gets jammed with electrons in the absence of oxygen. As a result, NAD cannot be generated hence causing glycolysis to produce lactic acid as opposed to pyruvate, which is a vital component of the Krebs cycle.
- Does TCA Cycle Require Oxygen?
- Why Does Cellular Respiration Need Oxygen?
- What Happens During Krebs Cycle?