試題詳解

43. A diagram of ATP synthase is shown.

If an ATP synthase contains 12 c subunits, 3 a subunits and3 ẞ subunits, how many protons must pass through this complex for every ATP molecule synthesized and transported to the cytosol, assuming that each ATP synthesized requires one proton for transport to the cytosol?

(A) 3
(B) 4
(C) 5
(D) 12
(E) 13