Question

Why are chemical reactions necessary in the human body?

Answer 1

The main players in metabolism are enzymes, molecules that speed up thechemical reactions in our bodies. Because they make reactions go faster than they would on their own, enzymes are biological catalysts.

hope it clarifies u....

Answer 2

Enzymes are proteins that control the speed of chemical reactions in your body. Without enzymes, these reactions would take place too slowly to keep you alive. Some enzymes, like the ones in your gut, break down large molecules into smaller ones.