Kira is a hemophiliac. this means that she does not produce clotting factors. what aspect of the clotting process should she
be worried about not functioning?

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.

Dis the

B. to increase the amount of antibiotics in the body

Enzyme. anything that ends in "ase" is usually an enzyme.