What is the direction of proton backflow in the chloroplast F₁F_o ATP synthase?

Question

Quizplus · Accepted Answer

The proton backflow in the chloroplast F₁F_o ATP synthase occurs from the lumen to the stroma. This is because during the light-dependent reactions of photosynthesis, protons are pumped from the stroma into the thylakoid lumen to create a proton gradient. This gradient is used to drive ATP synthesis by the ATP synthase, which allows the protons to flow back from the lumen to the stroma. Therefore, the direction of proton backflow is from lumen to stroma.

What Is the Direction of Proton Backflow in the Chloroplast