The functions of enzymes include:
1. Catalyzing chemical reactions: Enzymes speed up chemical reactions in the body by lowering the activation energy needed to start the reaction.
2. Digesting food: Enzymes help break down food molecules into smaller units that can be absorbed by the body.
3. Removing waste: Enzymes help break down and remove waste products from the body.
4. Regulating metabolism: Enzymes help regulate the rate of metabolic processes in the body.
5. Supporting the immune system: Enzymes help destroy harmful bacteria and viruses in the body.