Photolysis of water is caused by

P S - I

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P S - I I

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P S - I

and

P S - I I

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None of the above

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Solution

The correct option is B $P S - I I$
Photolysis of water is the splitting of the water molecule into hydrogen and oxygen in the presence of sunlight. During the first stage of photosynthesis, when the light energy is absorbed ps-II i.e., p680. The electrons in the chlorophyll are energized to the excited state and captured by electron acceptor. Once the electron drops to the ground state, the water molecules get splits due to the presence of the photon.

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Similar questions

Question 11
The correct sequence of flow of electrons in the light reaction is
(a) PS II, plastoquinone, cytochromes, PS I ferredoxin
(b) PS I, plastoquinone, cytochromes, PS II, ferredoxin
(c) PS I, ferredoxin, PS II
(d) PS I, plastoquinone, cytochromes, PS II, ferredoxin

Q. Differentiate between PS-I and PS-II.

Q. PS I and PS II occur over

Q. Name the reaction centres of PS I and PS II.

Splitting of water molecules during light reaction of photosynthesis is associated with

(a) PS I resulting in the release of $O_{2}$ , protons and transfer of electrons to PS II

(b) PS II resulting in release of $O_{2}$ , protons and transfer of electrons to PS I

(d) PS I resulting in the release of $O_{2}$ , protons and transfer of electrons to PS I.

Of the above statements

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