Describe how the harmonies aldosterone and adh affect water movement in the collecting ducts?i have no idea.

Role of aldosterone
                                 Aldosterone is released by adrenal gland. When blood pressure of blood is lowered, this hormone is released  which reabsorb sodium followed by water re-absorption indirectly.

Role of ADH
                     This hormone is produced in hypothalamus but released by posterior pituitary. It directly control water conservation. ADH has the ability to reabsorb urea which, in turn, reabsorbs water through osmosis

Bc they get tired from playing with other kittens

Mitochondria produce atp, a high energy compound. atp is used for all sorts of enzyme-mediated reactions, such as making proteins/nucleotides/etc, certain compounds cross the cell membrane, muscles move, etc.  without this source of energy, a cell will die. it will not be able to repair itself, defend against pathogens, etc.