Is the set of the metabolic reactions and processes that take place in organisms’ cells to convert biochemical energy from nutrients into adenosine triphosphate (ATP), and then release waste products. The reactions involved in respiration are catabolic reactions that involve the oxidation of one molecule and the reduction of another.
The metabolic process of all living cells (animal and plant) in which oxygen is used to provide a source of energy for the cell.
The process by which cells transfer energy from food to ATP in a stepwise series of reactions. It relies heavily on the use of oxygen.