The process of converting sunlight into energy by living organisms is called photosynthesis. This biochemical process takes place primarily in plants, algae, and some bacteria. During photosynthesis, these organisms capture sunlight using chlorophyll and convert carbon dioxide and water into glucose and oxygen. The glucose provides energy for growth and metabolism, while oxygen is released as a byproduct into the atmosphere. Photosynthesis is crucial for life on Earth, as it is the foundation of the food chain and contributes significantly to the global oxygen supply. This process also plays a vital role in regulating the Earth's climate.