Enzymes are proteins that catalyze biochemical reactions in living organisms by increasing the rate of chemical reactions. Each enzyme has a specific function and acts on a particular substrate, which is the molecule that the enzyme acts upon. Here are some examples of enzymes and their functions:

★ Amylase: 

This enzyme breaks down carbohydrates into simpler sugars like glucose and maltose.

★ Protease: 

This enzyme breaks down proteins into amino acids.

★ Lipase: 

This enzyme breaks down fats into fatty acids and glycerol.

★ DNA polymerase: 

This enzyme is responsible for the replication of DNA during cell division.

★ ATP synthase: 

This enzyme is responsible for the synthesis of ATP (adenosine triphosphate), which is the energy currency of the cell.

★ Catalase: 

This enzyme breaks down hydrogen peroxide into water and oxygen.

★ Peptidase: 

This enzyme breaks down peptides into amino acids.

★ Maltase: 

This enzyme breaks down maltose into glucose.

★ Pepsin: 

This enzyme breaks down proteins in the stomach.

★ Acetylcholinesterase: 

This enzyme breaks down the neurotransmitter acetylcholine in the nervous system.