In photosynthetic cells,which reactions is (are)responsible for the synthesis of ATP by chemiosmosis?
A)photosynthesis only
B)cellular respiration only
C)both photosynthesis and cellular respiration
D)cyclic photophosphorylation only

Question

Quizplus · Accepted Answer

Both photosynthesis and cellular respiration are responsible for the synthesis of ATP by chemiosmosis in photosynthetic cells. During photosynthesis, ATP is generated by photophosphorylation, which involves the transfer of electrons down the electron transport chain and the generation of a proton gradient across the thylakoid membrane. Similarly, during cellular respiration, ATP is generated by oxidative phosphorylation, which involves the transfer of electrons down the electron transport chain and the generation of a proton gradient across the inner mitochondrial membrane. In both cases, the proton gradient is used by ATP synthase to drive the synthesis of ATP by chemiosmosis.

In Photosynthetic Cells,which Reactions Is (Are)responsible for the Synthesis of ATP