If a cell in g1 has 40 chromosomes, then at the end of meiosis i there will be chromosomes in each daughter cell, and sister chromatids in each daughter cell.

Given that a cell is undergoing meiosis, at the end of meiosis I, its number of chromosomes would be in half. Provided in the question that the cell in G1 has 40 chromosomes, at the end of meiosis I, there will be 20 chromosomes in each daughter cell. And each chromosome has two sister chromatids, then there will be 40 sister chromatids in each daughter cell.

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.