Why are enzymes important to biological systems? Enzymes increase the energy barrier required of chemical reactions. Enzymes decrease the amount of activation energy required for chemical reactions to occur. Enzymes are reuseable. Enzymes prevent unwanted chemical by-products from forming.

Enzymes are important to biological systems because they decrease the amount of activation energy required for chemical reactions to occur. This allows reactions to happen more quickly and efficiently, which is crucial for the survival and functioning of living organisms. Enzymes are also reusable, meaning they can catalyze the same reaction multiple times without being consumed or altered in the process. This allows them to be used over and over again, making them highly efficient. Additionally, enzymes help to prevent unwanted chemical by-products from forming, ensuring that reactions proceed in the desired direction and produce the correct products.