multienzymatic complex located in the inner mitochondrial membrane. It is the terminal step for the production of high energy compounds (ATP) which are necessary to mantain cell metabolism.
The terminal reactions of cellular respiration, in which electrons are passed from NAD or FAD, through a series of intermediate carriers, to molecular oxygen, with the concomitant production of ATP.
The group of enzymes which act as a catalyst to the transfer of electrons from a donor compound to oxygen with trapping of energy in the form of ATP; found in all cells with aerobic metabolism.