what organelles carry out photosynthesis
Photosynthesis occurs in organelles called CHLOROPLASTS. More specifically, half of the photosynthesis chemistry stuff occurs in a liquid inside the chloropasts called STROMA, & the other half of photosynthesis occurs in stacks of membranes inside the chloroplast called GRANA. Turns out there are 2 types of chlorophyll, chlorophyll a & chlorophyll b.
Chloroplasts' main role is to conduct photosynthesis, where the photosynthetic pigment chlorophyll captures the energy from sunlight and converts it and stores it in the energy-storage molecules ATP and NADPH while freeing oxygen from water.