Definition for Respiration
From Biology Forums Dictionary
1. The act of respiring; inhalation and exhalation of air; breathing.
2. (a) The sum total of the physical and chemical processes by which oxygen is conveyed to tissues and cells and the oxidation products, carbon dioxide and water, are given off.
(b) The oxidation of organic compounds occurring within cells and producing energy for cellular processes.
3. Is the exchange of gases between the atmosphere, blood, and cells.
