10. Which of the following is not commonly included as part of the processes involved in respiration? a. Air enters and leaves the lungs
b. Oxygen and carbon dioxide are exchanged between the air and the blood.
c. Oxygen and carbon dioxide are exchanged between the blood and cells.
d. ATP is produced within the body cells, via cellular respiration.
e. Carbon monoxide combines with hemoglobin in the red blood cells.

When the ball is rising up, it gains kinetic energy. when the ball reaches the very top, it will have all potential energy, until it falls back down and gains it kinetic energy. finally when you catch the ball or it falls back down, it would have gained its potential energy back.

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.