Final answer:
The active sites of enzymes are specific regions within the enzyme where the substrate binds for a reaction. The active site is made up of a unique combination of amino acid side chains, creating a specific chemical environment suited for binding to a specific substrate. Enzymes are known for their specificity due to the jigsaw puzzle-like fit between the enzyme and its substrates.
Step-by-step explanation:
The active sites of enzymes are specific regions within the enzyme where the substrate binds for a reaction.
The active site is made up of a unique combination of amino acid side chains, creating a specific chemical environment suited for binding to a specific substrate.
Enzymes are known for their specificity due to the jigsaw puzzle-like fit between the enzyme and its substrates.