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The enzymatic synthesis of sugar in the chloroplast takes place in the

(a) outer membrane Your answer
(b) thylakoid lumen Your answer
(c) grana Your answer
(d) stroma Correct

Your answer: Correct answer: (d)

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Explanation

Why (d) is correct

The enzymatic reactions that make sugar (the Calvin cycle) take place in the stroma of the chloroplast.

Why the other options are wrong

(a) · your answer The outer membrane has no role in sugar synthesis.
(b) · your answer The thylakoid lumen collects protons; it is not where sugar is made.
(c) · your answer The grana carry out the light reactions.

NCERT point: The stroma contains RuBisCO and the other Calvin cycle enzymes.

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