Question

which best describes how enzymes function in the body? an enzyme is used once, then destroyed by the cell. one enzyme can catalyze many different reactions. enzymes lower the activation energy of reactions. enzymes are converted into the products by the reactions they catalyze.

Explanation:

Enzymes are biological catalysts. They function by reducing the activation - energy required for a chemical reaction to occur in the body, which speeds up the reaction rate. Enzymes are not used up or converted into products during the reaction they catalyze. They are highly specific and usually catalyze only one or a few types of reactions. Also, they can be reused multiple times.

Answer:

Enzymes lower the activation energy of reactions.