Why are cells described as the "building blocks" of all living things? A) A cell is the smallest part of the air living things need to breathe.

B) They are found in everything tiving things need, including water and food

C) A cell is the smallest part of a living thing that can function on its own.

D) Cells are always stacked in rows, like bricks, to build the parts of living things.

What are the choices?

The awnser is b i believe

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.