The organelle in which photosynthesis occurs is the chloroplast. Chloroplasts are found in the cells of green plants and some algae, and they play a crucial role in converting light energy from the sun into chemical energy in the form of glucose.
During photosynthesis, chloroplasts take in carbon dioxide from the air and water from the soil, and using sunlight, they convert these raw materials into sugar (glucose) and oxygen. The chlorophyll, a green pigment located within the chloroplasts, is essential for this process as it captures light energy. Without chloroplasts, plants would not be able to produce their own food, and consequently, life on Earth would be drastically different since plants serve as the base of the food chain for many organisms.