In chemiosmosis, what is the most direct source of energy that is used to convert ADP+ ?i to ATP?
A) energy released as electrons flow through the electron transport system
B) energy released from movement of protons through ATP synthase, down their electrochemical gradient
C) energy released from substrate-level phosphorylation
D) No external source of energy is required because the reaction is exergonic.
E) energy released from dehydration synthesis reactions
Answer: B