This question would be given a false answer Dear
Answer:
S-Phase
Explanation:
During the S-Phase, the cell replicates its DNA. Interphase is then followed by Mitosis. Mitosis is when the cell separates its two sets of DNA and divides it into two more cells.
In order to make the proton gradient, protons are pumped across the mitochondrial membrane at several points in the electron transport chain. However, that proton gradient is only used to make ATP by the ATP synthase, which is technically separate from the electron transport chain.