What happens when a photon of light hits photosystem ii? a. the water-spitting enzyme is released into the inner space. b. a channel in the photosystem || protein allows the light to pass into the thylakoid. c. water molecules enter the thylakoid membrane and are split. d. an electron is excited and enters the electron transport chain.

The correct answer is option D.

Explanation:

Photosystem II is a special pigment-protein complex that utilizes a photon to excite the electron and transfer of electrons from water to PQ or plastoquinone. That resulting in the generation of oxygen and the release of reduced PQ into the photosynthetic membrane.

Steps involved in photosystem:

When a photon hit photosystem II, light energy absorbed by one of the pigments in photosystem II, energy is carried from one pigment to another and reach down to the reaction center .

ATP synthesis

Light absorption in PSI

NADPH formation.

Thus, The correct answer is option D.

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