Assertion :
Protons produced by photolysis accumulate in lumen of thylakoids.
Reason: Photolysis occurs in inner membrane of thylakoids.

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
The assertion is true as according to the chemiosmotic hypothesis, the protons accumulate in the lumen of the thylakoids creating a proton gradient. The reason is correct and is the correct explanation for the Assertion as photolysis occurs on the inner membrane of thylakoids and releases the proton into the lumen.
So the correct answer is 'Both Assertion and Reason are correct and Reason is the correct explanation for Assertion'.

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Assertion :Protons produced by photolysis accumulate in lumen of thylakoids. Reason: Photolysis occurs in inner membrane of thylakoids.

Assertion :
Protons produced by photolysis accumulate in lumen of thylakoids.
Reason: Photolysis occurs in inner membrane of thylakoids.