Assertion :The stromal thylakoids are rich in both PS I and PS II. Reason: The stroma membranes are rich in ATP synthase.

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 D Both Assertion and Reason are incorrect.
The grana are the stacks of thylakoid membranes which enriched in PS II and LHC (light harvesting center), while there is little ATP synthetase. On the other hand, a fraction of the stroma membrane is rich in PS I and ATPase and poor in PS II and LHC. Thus, the correct answer is option D.

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Similar questions

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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
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Reason (R) Order is determined experimentally and molecularity is the sum of the stoichimetric coeffcient of rate determining elementary step.

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