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.
If the liquid is a pure substance A, the partial. pressure PA at equilibrium, called vapor. pressure, can be obtained directly from a. table. See next slide. In the presence of perturbing processes, the situation may be kept away from. equilibrium. â¢ When the partial pressure of the substance is less than the vapor pressure, a condition called subsaturation, there is net evaporation. â¢ Conversely, when the partial pressure exceeds the vapor pressure, a condition called supersaturation, there is net condensation.