Suppose that enzyme x catalyzes a reaction that involves the breakdown of a molecule. the product of this reaction is an amino acid. what molecule is the enzyme breaking down? a. a lipid b. a mineral c. a carbohydrate d. a protein

D). A protein.

This is because amino acid are monomers of proteins.

Polymers (in this example, it would be proteins) are made up of monomers (amino acids).

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.

The 3 steps are vasoconstriction, temporary blockage of a platelet plug, formation of a fibrin clot better known as coagulation.