Refer to Figure 9.2, showing the citric acid cycle, as a guide to answer the following questions.

-In chemiosmotic phosphorylation, what is the most direct source of energy that is used to convert ADP + Pi to ATP?

Question

Refer to Figure 9.2, showing the citric acid cycle, as a guide to answer the following questions.
 
-In chemiosmotic phosphorylation, what is the most direct source of energy that is used to convert ADP + Pi to ATP?

Quizplus · Accepted Answer

The movement of protons through ATP synthase is the most direct source of energy in chemiosmotic phosphorylation. This movement powers the synthesis of ATP from ADP and Pi. Energy released from electron flow through the electron transport system and substrate-level phosphorylation fuels the proton gradient across the mitochondrial inner membrane, which ultimately powers ATP synthesis through ATP synthase.