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AP Biology›Unit 3: Cellular Energetics›Photosynthesis and Respiration

Cellular Respiration

Glycolysis, the Krebs cycle, and oxidative phosphorylation release energy from glucose in steps. Most of the ATP comes from a proton gradient.

Glycolysis and pyruvate oxidationElectron transport chainFermentation

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Unit 3: Cellular Energetics

  • Enzymes and Activation Energy
  • Photosynthesis
  • Cellular Respiration

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    Also called: krebs cycle, electron transport chain, atp synthase, glycolysis