Photosynthesis is the process by which green plants convert sunlight into energy. It takes place in the chloroplasts of plant cells and involves several key steps. First, plants absorb sunlight through their chlorophyll pigment. This sunlight energy is used to split water molecules into oxygen and hydrogen ions. The hydrogen ions are then combined with carbon dioxide from the air to produce glucose, a form of sugar that serves as the plant's energy source. During this process, oxygen is released into the atmosphere as a byproduct, which is essential for supporting life on Earth. Photosynthesis is crucial for the survival of plants and provides the foundation of the food chain, as it is responsible for producing the organic compounds that other organisms rely on for energy. In summary, photosynthesis is a complex biochemical process that is essential for the survival of plants and the balance of ecosystems. It highlights the intricate and interconnected nature of biological systems on our planet.