The cellular process of breaking down food to release energy is known as _____ .
Cellular respiration
Respiration involves breathing, transpotation of oxygen and cellular respiration. Breathing is inhalation of oxygen and exhalation of carbon dioxide. The oxygen inhaled is transported through the blood to the cells of the body. It is used to break down food to release energy by the process of cellular respiration. Carbon dioxide is produced as waste in this process. This carbon dioxide is further transported to the lungs through the blood and is expelled through the nostrils.