Split reins are a piece of equipment used for communicating with a horse while it is being ridden. Split reins are actually two separate, individual reins that are used together, with one rein on each side of the horse's neck.
As discussed above, mitochondria are the sites of respiration, and generate chemical energy in the form of ATP by metabolizing sugars, fats, and other chemical fuels with the assistance of molecular oxygen.
Cell Structure: The Mitochondrion. Mitochondria (singular-mitochondrion) are the energy powerhouses of cells. Much of the energy that cells (and therefore individuals) require to function is harvested from biomolecules such as sugars and fats obtained from food.Mitochondria carry out the final steps of converting the food to energy.itochondria (singular-mitochondrion) are the energy powerhouses of cells. Much of the energy that cells (and therefore individuals) require to function is harvested from biomolecules such as sugars and fats obtained from food. Mitochondria carry out the final steps of converting the food to energy.