What is produced by an enzyme-catalyzed reaction?

In an enzyme-catalyzed reaction, the primary role of the enzyme is to facilitate the conversion of substrates into products. When a substrate binds to the active site of the enzyme, it undergoes a transformation due to the specific conditions and interactions created by the enzyme's structure. This process typically results in the formation of one or more products that are different chemical entities than the original substrates.

The presence of the enzyme speeds up the reaction by lowering the activation energy required for the reaction to occur, but the enzyme itself remains unchanged at the end of the reaction, allowing it to be reused for subsequent reactions. Thus, the correct answer identifies products as the end result of enzyme activity, emphasizing the conversion that takes place in biochemical processes.