Respiration

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  • Created by: Sarah
  • Created on: 28-04-14 11:31
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  • Respiration
    • 1. Glycolysis (cytoplasm)
      • Phosphorylated glucose (2 ATP used)
        • 2x triose phosphate
          • 2x Pyruvate (4 ATP made and 2 NAD used)
    • 2. Link Reaction (matrix)
      • Pyruvate - hydrogen = acetate
        • NAD becomes reduced NAD
          • acetyl CoA (1C formed)
    • 3. Krebs cycle (matrix)
      • Acetyl CoA binds with 4C to form 6C.
        • 4H lost - 3 NAD reduced and 1 FAD reduced.
        • 2C lost
          • 1 ATP formed
          • 4C regenerate
            • Acetyl CoA binds with 4C to form 6C.
              • 4H lost - 3 NAD reduced and 1 FAD reduced.
              • 2C lost
                • 1 ATP formed
                • 4C regenerate
      • 4. Electron Transport Chain (cristae)
        • Reduced NAD and FAD becomes oxidised, releasing H atoms which are split into H+ and e-
        • Electrons move along ETC in oxidation-reduction reactions.
        • Energy lost is used to make ATP.
        • H+ protons accumulate between mitochondria membranes then diffuse into matrix.
        • Water is formed. Oxygen is final acceptor of electrons.

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