Molecular oxygen, O2, is essential for cellular respiration in all aerobic organisms. Oxygen is used as an electron acceptor in mitochondria to generate chemical energy. Take a look inside the cell to see these powerhouses of the cell, petite organelles mitochondria, click here.
1 : the action of perturbing : the state of being perturbed. 2 : a disturbance of motion, course, arrangement, or state of equilibrium; especially : a disturbance of the regular and usually elliptical course of motion of a celestial body that is produced by some force additional to that which causes its regular motion.
agÂ·iÂ·taÂ·tion. n. 1. The act of agitating or the state of being agitated. 2. Extreme emotional disturbance; perturbation. 3. The stirring up of public interest in a matter of controversy, such as a political or social issue. agâ²iÂ·taâ²tionÂ·al adj.