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.
What is the major function of cell division and mitosis? The functions of cell division by mitosis are 1. to keep the total cell number in a mature organism relatively constant, 2. to replace worn-out or damaged cells, and 3. to ena â¦ ble a multicellular organism to grow to adult size.