Phottosynthesis in green plants use the energy from sunlight to connvert carbon dioxide,water and minerals into organic food. Photosynthesis occur in the leaves of plants. Tiny holes inthe leaf obsorbs carbon dioxide from theair. the leaf obtains light energy from the sun's rays. the chloroplasts trap the light energy and use it to manufacture food. The leaf makes carbohydrates. These provide nutrition for healthy plant growth. In the process of photosynthesis,oxygen escapes through the tiny holes in the leaf's surface into the atmosphere.