"Respiration constitutes a series of enzyme-driven reactions that allow plants to turn the stored energy of carbohydrates made via photosynthesis into a form of energy they can use to power growth and metabolic processes."
In physiology, the process by which a living being utilizes the food to get energy is called respiration. Respiration is an oxidation reaction in which carbohydrate is oxidized to produce energy. Mitochondrion is the site of respiration and the energy released is stored in the form of ATP (Adenosine triphosphate).