Question

question 5 which statement best explains how enzymes speed up a chemical reaction? 1 pts enzymes are not changed as a result of a chemical reaction. enzymes remove heat from a chemical reaction. enzymes lower the activation energy of a chemical reaction. enzymes add heat to a chemical reaction.

Explanation:

Enzymes are biological catalysts. They speed - up chemical reactions by lowering the activation energy required for the reaction to occur. They are not consumed or changed in the reaction itself. Adding heat is not how enzymes work, and they don't remove heat from reactions.

Answer:

Enzymes lower the activation energy of a chemical reaction.