Answer:
Enzymes are proteins that participate in cellular metabolic processes that speed up the rate of reaction between biomolecules. Basically enzymes are proteins that catalyze reactions. Each enzyme has a specific function, and one enzyme acts on one substrate - the material that binds to the enzyme's active site. The shape of the enzyme has to match the substrate shape for the reaction to occur. How enzymes work is that they bind molecules so they are held in a geometric configuration that lets the reaction to occur.