Question Detail
Question
During oxidative phosphorylation in mitochondria synthesis of ATP occurs due to
Correct Answer
Option B is the correct answer.
Detailed Explanation
ATP synthesis during oxidative phosphorylation is directly driven by the electrochemical proton gradient (the proton motive force) established across the inner mitochondrial membrane. The flow of protons back into the matrix through ATP synthase provides the energy to phosphorylate ADP to ATP.
Hint
The energy for ATP production comes from a gradient of what ion across the inner mitochondrial membrane?