If blood cannot reach heart muscle cells, they can become damaged and die. What might happen to a person if some of his heart muscle cells
die? 4 structures would be affected, 1 would not. Which of these would
NOT happen?

Ibelieve the answer is c. 

Im assuming this is a multiple choice answer what is the answers to chooce from?

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.