Oxidative Phosphorylation

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Oxidative Phosphorylation Process

  1. In the matrix, there's reduced NAD and reduced FAD that have been produced in the glycolysis, link, or Krebs cycle.

  2. They arrive at the inner membrane (cristae) and the red NAD and red FAD will dissociate to give off the electrons and H+ ions

  3. The electrons will enter the electron transport chain

  4. In the ETC, the electrons will go through a series of redox reactions as it passes through these electron carriers, releasing energy.

  5. The energy released will actively transport the H+ ions into the intermembrane space.

  6. This causes a build up of H+ ions in the intermembrane space, creating a proton gradient.

  7. The proton gradient causes the protons to want to return to the matrix, and that is done by flowing through ATP synthase.

  8. Flowing through ATP synthase will make ATP.

  9. In the matrix, where the H+ ions and electrons are at again, will now join to oxygen (the final electron acceptor) to make water.

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What's the name for the formation of ATP using ATP synthase?

Chemiosmosis

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Define Chemiosmosis

The process by which the movement of hydrogen ions across a biological membrane generates ATP.

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