HELP! BIOLOGY EXPERTS!!!!!
Which of the following best describes how ATP synthase is used in the inner membrane of the mitochondrion during the process of chemiosmosis?

a. It uses the energy of a proton concentration gradient to form ATP from ADP.
b. It generates ATP from ADP by absorbing energy released by the Calvin cycle.
c. It breaks ATP down into ADP and releases energy that can be used to do work.
d. It converts ATP to ATP by removing an inorganic phosphate group into the cytosol.