question 16\n1 pts\nwhich of the following is a substance that is acted upon by an enzyme?\nvitamin\nproduct\…

Brief Explanations:

In biochemistry, an enzyme acts on a specific substance called a substrate to catalyze a chemical reaction. Vitamins are organic compounds that play various roles in the body but are not directly acted upon by enzymes in the same way. A product is the result of an enzyme - catalyzed reaction. A monomer is a single unit that can combine to form polymers and is not the general term for what an enzyme acts on.

Answer:

C. Substrate