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The photochemical phase and the biosynthetic phase of photosynthesis take place, respectively, in the

(a) cytoplasm and chloroplast Your answer
(b) mitochondria and chloroplast Your answer
(c) thylakoids and stroma Correct
(d) stroma and thylakoids Your answer

Your answer: Correct answer: (c)

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Explanation

Why (c) is correct

The photochemical (light) phase takes place in the thylakoids, and the biosynthetic (carbon) phase in the stroma.

Why the other options are wrong

(a) · your answer Both phases are in the chloroplast.
(b) · your answer Mitochondria are not involved in either phase.
(d) · your answer This reverses the two.

NCERT point: Membranes trap light; the stroma makes sugar.

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