SAT Subject Biology Practice Question 259: Answer and Explanation

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Question: 259

9. Where do the reactions of the Calvin cycle take place?

A. Stroma
B. Cytoplasm
C. Thylakoid membrane
D. Mitochondrial matrix
E. Mitochondrial membrane

Correct Answer: A


The Calvin cycle, or the dark reactions of photosynthesis, takes place in the stroma of the chloroplast.

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