• 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)
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