ask students to take a stance on the use of antibiotics for raising livestock. students should write a paragraph explaining their opinion in the matter, using evidence to support their claim. students should discuss health reasons for both livestock and humans and also economic impacts.

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.