Assertion :Protons or hydrogen ions produced by photolysis of water accumulate in the lumen of thylakoids. Reason: Photolysis of water takes place in inner membrane of thylakoid.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.

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Assertion is correct but Reason is incorrect.

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Both Assertion and Reason are incorrect.

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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.
According to the chemiosmotic hypothesis, ATP synthesis is linked to the development of a proton gradient across the membrane of the thylakoid of the chloroplast. There are several processes that take place during activation of electrons and their transport which lead to the development of a proton gradient. Photolysis of water is the first step of ATP synthesis. The splitting of water molecule takes place on the inner side of the membrane and so the hydrogen ions (protons) that are produced, they accumulate within the lumen of the thylakoids.
Hence, both Assertion and Reason are correct and Reason is the correct explanation for Assertion.

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Similar questions

Assertion: Protons or hydrogen ions produced by photolysis of water accumulate in the lumen of thylakoids.
Reason: Photolysis of water takes place in the inner membrane of thylakoids.

Q. Assertion :

Protons produced by photolysis accumulate in lumen of thylakoids.

Reason: Photolysis occurs in inner membrane of thylakoids.

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Reason (R) We cannot determine order from balanced chemical equation.

(a) Both assertion and reason are correct and the reason is correct explanation of assertion
(b) Both assertion and reason are correct, but reason does not explain assertion.
(c) Assertion is correct, but reason is incorrect
(d) Both assertion and reason are incorrect
(e) Assertion is incorrect but reason is correct.

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