What powers ATP synthase to phosphorylate ADP to make ATP?

Question

Quizplus · Accepted Answer

The movement of protons (hydrogen ions) is what powers ATP synthase to phosphorylate ADP to make ATP. This occurs during oxidative phosphorylation, when hydrogen ions are pumped across the inner mitochondrial membrane, creating an electrochemical gradient. When the hydrogen ions flow back down their concentration gradient through ATP synthase, it causes a conformational change in the enzyme that leads to the phosphorylation of ADP to form ATP. Therefore, choice C is the correct answer.

What Powers ATP Synthase to Phosphorylate ADP to Make ATP