How does the opening and closing of the stomata help the plant? * A. It aids in releasing turgor pressure from the guard cells.
B. It helps maintain the water pressure within the stroma.
C. It helps to regulate the amount of oxygen that enters the plant.
D. It helps the plants maintain homeostasis by regulating the amount of water the plant loses during transpiration.

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.