Aerobic respiration is a chemical reaction that requires oxygen to generate adenosine triphosphate, or ATP, a chemical that cells use for energy. It is also referred to as intracellular energy transfer.
ATP transports chemical energy within cells for metabolism. It is an end product of many cellular processes such as cellular respiration and fermentation.
Aerobic respiration entails three different processes: glycolysis, Kreb’s cycle and photophorylation. These processes play a part in the production of ATP. In the glycolysis stage, sugar glucose is broken down to produce ATP, nicotinamide adenine dinucleotide, or NADH, and pyruvic acid. Kreb’s cycle, also known as the citric acid cycle, is a process in which products from glycolysis are converted to produce carbon dioxide, ATP and two energy-carrying molecules, NADH and flavin adenine dinucleotide, or FADH2. The photophorylation phase produces ATP to be used by the cells.