Imagine that an accident has exposed you to a mutagen. however, the medical report indicates that only your germ cells (not your somatic cells) have been affected by the exposure. speculate on how this might or might not change your future.

Generally, we can say that we have to kind of cells based on reproduction:
Somatic and germinal cells.
Germ cells come from a division of stem cells (meiosis). They are at the origin of the formation of the reproductive cells, or gametes (spermatozoids in the man and the oocytes at the woman) The DNA of these cells affected by mutations can be transmitted to the offspring (which is not the case for somatic cell mutations).

Somatic cells represent all the cells of the body, except germ cells and embryonic cells. It could be bone cells, liver cells or blood cells... Theoretically, since these cells are not germ cells, they will never transmit to their descendants the mutations they may have undergone. But it could lead to cancers if they are mutated (skin, liver, or lung cancer).

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.