What is photosynthesis? Photosynthesis is the biological process by which light energy from the sun is converted into chemical energy in the form of organic compounds, such as glucose. This process occurs in the chloroplasts of plant cells and involves the use of pigments, such as chlorophyll, to absorb light energy. The energy from the absorbed photons is then used to convert carbon dioxide and water into organic compounds, releasing oxygen as a byproduct. This process involves the use of pigments such as chlorophyll, which absorb the light energy, and the conversion of carbon dioxide and water into carbohydrates and oxygen through a series of complex biochemical reactions. The process of photosynthesis is critical for the survival of plants and other organisms that depend on them for food and oxygen. Why is it called photosynthesis? Photosynthesis is named after the Greek words "photo" meaning "light" and "synthesis" meaning "putting together....