Marie rubs a balloon against a small piece of wool for about 30 seconds, causing negative charges on the wool to transfer to the balloon. She then places the piece of wool against the balloon. Which of the following best describes what will happen next?
A. The positively-charged wool will stick to the negatively-charged balloon.
B. The negatively-charged wool will stick to the negatively-charged balloon.
C. The positively-charged wool will repel the negatively-charged balloon.
D. The negatively-charged wool will repel the positively-charged balloon.

Atp is is our little "pocket" of energy. of course, if you have too little, then it means you have too little energy, and you'll pass out. the way to not have enough, is to have no energy sources (glucose, fats, proteins). you can't have too many atp molecules. cycles like the krebs cycle produce it, but if you have too much of any substrate (or too little for that matter), the cycle stops and atp is no longer made (it stops until substrate levels are such that the process can go on). in any case, this is unlikely since atp is constantly hydrolyzed and remade, even while you're asleep. you won't have too much. if you have zero, you are dead or dying.