In Mechanism,photophosphorylation is Most Similar to Which of the Following

Question

In mechanism,photophosphorylation is most similar to which of the following?
A)substrate-level phosphorylation in glycolysis
B)oxidative phosphorylation in cellular respiration
C)the Calvin cycle
D)carbon fixation
E)reduction of NADP⁺

Accepted Answer

Photophosphorylation and oxidative phosphorylation both involve the generation of a proton gradient across a membrane, which is then used to power ATP synthesis by ATP synthase. This is in contrast to substrate-level phosphorylation in glycolysis, which involves the direct transfer of a phosphate group from a substrate to ADP. The Calvin cycle and carbon fixation are both involved in the process of photosynthesis, but they do not involve the generation of ATP. The reduction of NADP⁺ is a separate process from photophosphorylation, although it does occur during photosynthesis.