ATP production by ATP synthase, requiring a proton gradient across a membrane, occurs in which of the following?
A) substrate- level phosphorylation.
B) oxidative phosphorylation
C) photophosphorylation
D) Both A and B.
E) Both B and C

Question

Quizplus · Accepted Answer

ATP production by ATP synthase, requiring a proton gradient across a membrane, occurs in both oxidative phosphorylation (in aerobic respiration) and photophosphorylation (in photosynthesis). Substrate-level phosphorylation involves the direct transfer of a phosphate group from a phosphorylated substrate to ADP, without the involvement of a proton gradient.

ATP Production by ATP Synthase, Requiring a Proton Gradient Across