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MDCAT Biology QUESTION #7771
Question 1

The synthesis of ATP using a proton gradient across a membrane is called:

  • Fermentation
  • Glycolysis
  • Oxidative phosphorylation✔️
  • Pyruvate oxidation
Correct Answer Explanation

Oxidative phosphorylation occurs in the inner mitochondrial membrane (or bacterial plasma membrane) via the electron transport chain and ATP synthase. It couples chemiosmosis with ATP synthesis.