Question: what are the two main functions of chloroplasts?
Answer: Chloroplasts /ˈklɔːrəˌplæsts, -plɑːsts/ are organelles that conduct photosynthesis, where the photosynthetic pigment chlorophyll captures the energy from sunlight, converts it, and stores it in the energy-storage molecules ATP and NADPH while freeing oxygen from water in plant and algal cells.