Figuer:
This diagram shows the basic structure and function of an enzyme, acting to catalyze a cell's chemical reaction.
-The molecule that fits into the active site of an enzyme and reacts with the enzyme is

Question

Figuer:
This diagram shows the basic structure and function of an enzyme, acting to catalyze a cell's chemical reaction. 
-The molecule that fits into the active site of an enzyme and reacts with the enzyme is

Quizplus · Accepted Answer

The molecule that fits into the active site of an enzyme and reacts with the enzyme is called a substrate. It is not necessarily an analog or always a carbohydrate or broken down by the enzyme, and it could be a protein, but B is the best choice as it specifically identifies the molecule that fits into the enzyme's active site.

Figuer: This Diagram Shows the Basic Structure and Function of an an Enzyme