Given below are two statements. One is labelled Assertion (A) and the other is labelled Reason (R).
Assertion (A): Z-scheme of photosynthesis is operated in grana thylakoids.
Reason (R): Grana thylakoid membrane has both PSI and PSII and has NADP reductase associated with PSI towards stromal side.
In light of the above statements, choose the correct answer from the options given below.

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Both (A) and (R) are true and (R) is the correct explanation of (A).

Both (A) and (R) are true but (R) is not the correct explanation of (A).

(A) is true but (R) is false.

Both (A) and (R) are false.

answer is A.

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Detailed Solution

Z-scheme is nothing but non-cyclic electron transport. It is operated in the grana thylakoid as its membrane has both PSI and PSII and PSI is associated with NADP reductase towards stromal side. The arrangement of various electron carriers based on their redox potentials appears in Z shape. Hence it is called Z-scheme.

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