The products of aerobic cellular respiration include water, carbon dioxide, adenosine triphosphate (ATP) and two different energy carrying molecules: NADH and FADH2. The process is ultimately intended to produce ATP — a molecule that holds the energy used to power the cell's various functions.
Water is created when glucose molecules are broken down during glycolysis. The excess water leaves the body through breathing, sweating and urination. Carbon molecules are given off at various stages of the process and leave the body as carbon dioxide through breathing. ATP is the end-use product of respiration, releasing energy to the cell as the phosphate bonds in the molecule are broken. The NADH and FADH2 also hold energy in their hydrogen bonds, and more ATP is created when these bonds are split.