Energy required for ATP synthesis in PSII comes from

Options

A. proton gradient
B. electron gradient
C. reduction of glucose
D. oxidation of glucose

Answer

A

Explanation

Photosystem II (PS II) is photosynthetic pigment system alongwith some electron carriers that is located in the appressed part of the grana thylakoids. PS II has chlorophyll a, chlorophyll b and carotenoids. It picks up electron released during photolysis of water. The same is extrucded on absorption of light energy. As the extrucded electron passes over cytochrome `b_(6)-f` complex, it energises passage of protons picked up by PQ to create protons gradient for synthesis of ATP from ADP and inorganic phosphate this photophosphorylation is non -cyclic.