Plants store their waste products in a vacuole. the waste products are recycles back into the ground in the fall when the leaves fall off. which of the following make up the waste products that plants get rid of?
a. oxygen and urine
b. carbon dioxide and urine
c. carbon dioxide, oxygen and ions

The answer is C. carbon dioxide and and oxygen ions. plants cannot give off urine. that is an animal process

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.