what does the chloroplast do

The chloroplast is an organelle in plant cells primarily responsible for photosynthesis. It captures sunlight using chlorophyll pigments and converts it into chemical energy, producing glucose and oxygen. Besides photosynthesis, chloroplasts also synthesize amino acids, plant hormones, pigments, and antioxidants. They store starch and play roles in plant immune responses and adaptation to environmental stresses. Essentially, chloroplasts are critical for producing food that sustains plants and oxygen that supports life on Earth.