Not every organism is capable of synthesizing food from carbon dioxide (CO2) and water (H2O), so the organisms gifted with this functionality are termed as ‘photoautotrophs’. Although the process of process of Photosynthesis is quite complex, we can briefly represent it in the form of following chemical equation which was first proposed by Cornelis van Neil.
This Glucose that is synthesized by plants is later consumed by humans or animals to release energy, carbon dioxide and water in a process called respiration.