Question

1. how does an enzyme work?

Explanation:

Enzymes are biological catalysts. They work by lowering the activation energy of a chemical reaction. They have an active - site where the substrate binds, forming an enzyme - substrate complex. This complex undergoes a reaction to form products, which then separate from the enzyme.

Answer:

Enzymes lower activation energy, bind substrate at active - site to form complex, which reacts to produce products.