During photosynthesis in plant chloroplasts, where do the light-independent reactions (Calvin cycle) take place?
Answer and explanation
Correct answer: A. Chloroplast stroma
- Step 1: The light-dependent reactions occur across the thylakoid membrane. Step 2. The light-independent reactions (Calvin cycle) occur in the fluid-filled space surrounding thylakoids, known as the stroma. Answer: Chloroplast stroma. Why not the others: Thylakoid lumen accumulates protons during light reactions; membranes host electron transport complexes.
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