The first event in photosynthesis is

Options

A. Synthesis of ATP
B. Photoexcitation of chlorophyll and ejection of an electron
C. Photolysis of water
D. Release of oxygen

Answer

B

Explanation

The first event in photosynthesis is excitation of chlorophyll in the presence of light having wavelength 680 then the photoexcited electron is transferred from chlorophyll `P_680` in photosystem II converting it to its excited state. Then water is split to replace the electron.