Final answer:
The active site of an enzyme is a specialized area where the enzyme binds with a specific substrate for the reaction.
Step-by-step explanation:
The active site of an enzyme is an area with a specialized shape and/or set of chemical properties that allows the enzyme to bind with a particular substrate. Enzymes are proteins with a specific active site where the substrate binds for the reaction. The active site is usually a small region within the enzyme that participates in the catalytic action.