Answer:
The purpose of cellular respiration is simple: it provides cells with the energy they need to function. ... Key point: Cellular respiration involves catabolic reaction in order to break down food into usable energy so that cells, and the living organisms that contain them, can survive and thrive.
Cellular respiration is the process that occurs in the mitochondria of organisms (animals and plants) to break down sugar in the presence of oxygen to release energy in the form of ATP. This process releases carbon dioxide and water as waste products.
