Describe the process of splitting organic molecules with the participation of oxygen in aerobic cells.

Respiration is an oxidative, with the participation of oxygen, breakdown of organic nutrients, accompanied by the formation of chemically active metabolites and the release of energy, which are used by cells for vital processes.
In the process of breathing, a huge amount of energy is generated. If all of it would stand out immediately, then the cell would cease to exist. But this does not happen, because the energy is not released all at once, but stepwise, in small portions. The release of energy in small doses is due to the fact that respiration is a multi-stage process, at separate stages of which various intermediate products are formed (with different lengths of the carbon chain) and energy is released. The released energy is not consumed in the form of heat, but is stored in a universal macroergic compound – ATP. When ATP is cleaved, energy can be used in any processes necessary to maintain the body’s vital functions: the synthesis of various organic substances, mechanical work, maintaining the osmotic pressure of protoplasm, etc.