Process for the production of energy-rich biomolecules using light energy. Responsible for this are the chloroplasts (organ cells) in which the chlorophyll (leaf green) is found. Dyes such as chlorophyll, carotenoids and flavonoids in leaves or other green parts of plants use solar radiation as an energy source to produce carbohydrate compounds. This process converts carbon dioxide from the air and water into the carbohydrates glucose and fructose, while elemental oxygen is released. The uptake of solar energy by plants results in the binding of around 150 billion tonnes of carbon dioxide and the release of 400 billion tonnes of oxygen every year on Earth.