carbon dioxide: a chemical compound composed of two oxygen atoms bonded on either side of a carbon atom (CO 2); usually present as a gas hydrocarbon: a chemical compound containing hydrogen and carbon and often occurring in fossil fuels
Diffen âº Science âº Biology. Aerobic respiration, a process that uses oxygen, and anaerobic respiration, a process that doesn't use oxygen, are two forms of cellular respiration. Although some cells may engage in just one type of respiration, most cells use both types, depending on an organism's needs.erobic respiration, a process that uses oxygen, and anaerobic respiration, a process that doesn't use oxygen, are two forms of cellular respiration.
Asker's rating. 1  Oxygen's role in aerobic respiration is to serve as the final electron acceptor in the electron transport system. Glucose can be broken down in the absence of oxygen--and is, in many cells. The process of glycolysis does not require oxygen, which is why it can proceed in anaerobic bacteria or in muscle cells under oxygen-less conditions, for example.