• Cellular respiration takes the energy stored in glucose and transfers it to ATP.
  • It has three stages: glycolysis, Krebs cycle, and electron transport.
  • The structure of the mitochondrion is key to the process of aerobic (in the presence of oxygen) cellular respiration.
  • The inner and outer membranes play an important roles in aerobic respiration, as shown in Figure below.
  • The space enclosed by the inner membrane is called the matrix.
  • The third stage, electron transport, takes place on the inner Membrane.
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