Summary:
- Electron transport is the final stage of aerobic respiration.
- Energy from NADH and FADH2, which result from glycolysis and the Krebs cycle, is transferred to ATP.
- After passing through the electron transport chain, the “spent” electrons combine with oxygen to form water.
- This is why oxygen is needed; in the absence of oxygen, this process cannot occur.
- The two NADH produced in the cytoplasm produces 2 to 3 ATP each (4 to 6 total)