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Photosynthesis is the process by which plants and other organisms prepare their food in the presence of light.
Plants convert light energy from the sun into chemical energy that is used for their activities. Without photosynthesis, plants would not exist.
Plants need three things for the process of photosynthesis: carbon dioxide, water and light. Carbon Dioxide + Water + Light -----> Sugar + Oxygen
Sunlight is captured and energy is stored as a chemical molecule called ATP. ATP is then used to for other plant processes and to create sugar and organic compounds which help in plant growth.
Plants capture sunlight using a pigment called chlorophyll. Chlorophyll is green, which is why plants are green in colour. Chlorophyll converts light energy into chemical energy.
Photosynthesis occurs in green plants, seaweeds, algae, green stems and certain bacteria within specialised cell structures called chloroplasts.
Photosynthesis is influenced by temperature, light wavelength, light intensity and the level of carbon dioxide.
Oxygen is an important by-product of photosynthesis. Most organisms depend on this oxygen for their life and survival.