6) all but one procedure is appropriate use of a compound light microscope. that is a) beginning all work by closing the diaphragm and re-opening it. b) beginning all work by starting on the low power objective lens. c) turning the eyepiece at the base of the body tube, not at the lens. d) wrapping the cord around the base of the microscope at the completion of work.

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.