If a lab technician ran an ELISA for a bacterial toxin in a sample of cerebrospinal fluid, the technician would be using .

Your answer will be b action plan.

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.