Photosynthesis is a biological process that uses the energy from sunlight to convert carbon dioxide and water into complex sugars (such as glucose) and oxygen. This process is carried out by plants, some bacteria, and algae and constitutes the basis of the food chain for most forms of life on the planet.
The photosynthesis process takes place within the chloroplasts of the plant cells. When light hits the plant, it is absorbed by pigments such as chlorophyll, which use it to produce energy. This energy is used to break the bonds of hydrogen and oxygen in water, releasing oxygen as a byproduct. At the same time, carbon dioxide is combined with the products of water splitting to form complex sugars, which are used by the plant as a source of energy.
Photosynthesis is a crucial process for life on the planet, as it produces oxygen and stabilizes the amount of carbon dioxide in the atmosphere, contributing to regulating the global climate. Furthermore, the products of photosynthesis are used as a source of food and fuel for many forms of life, including humans.