Cellular respiration is important as it allows plants and animals to break down sugar and into usable energy, usually in the form of ATP. Organism can not use sugar as energy, so without the process of cellular respiration, the cell would not have energy. ATP is important product of cellular respiration because organism can utilize ATP as energy and thus able to work. Cellular respiration starts in the cytoplasm with glycolysis. Then, all of the other steps such as The Krebs Cycle and Oxidation phosphorylation takes place in the mitochondria.
