Question: are photosynthetic membranes inside chloroplasts?
Answer: In plants and other photosynthetic eukaryotes, photosynthesis takes place inside chloroplasts. The chloroplasts, shown in the activity at right, contain saclike photosynthetic membranes called thylakoids (THY-luh-koydz). ... The Calvin cycle takes place in the stroma, the region outside the thylakoid membranes.