• Enzymes are the macromolecules biological catalyst that accelerate the chemical reaction within the cell.
• Enzymes are increase the rate of reaction and perform main role in digestion and metabolic activities.
• Enzymes break down the larger partical in small pieces.
• Enzymes are highly selective catalyst meaning that each enzyme only speed up a specific reaction.
• The molecules that enzymes works with called the substrate. Substrate bind to enzyme called the active site of the enzyme. Enzymes highly specific for substrate.
• They accelerate chemical reaction under the mild condition of temperature and pH.
• All enzymes are Protein in nature. Enzymes are Protein but all protein are not a enzymes.
• Molecular weight of the enzyme is about 12,000 to more than one million.
• Amphoteric in nature
• Enzymes are divided into general classes.

1. Simple enzymes
2. Conjugated enzymes

1 Simple enzymes

These enzymes made up only with protein ( polypeptide ) They contains no chemical group other than amino acid. Ex pepsin, trypsin, steapsin.

2 Conjugated enzymes 

The primary structure of enzyme os composed of protein and other ( non protein part) called as conjugated enzymes.

The portion composed of protein part called Apoenzyme .

A non protein part composed of cofactor. Cofactor is a non protein part. The cofactor are mostly ion ( ex. iron. It is required for the accelarate or speed up the reaction .

Simple enzyme + cofactors = Holoenzyme .

Cofactors are linked to the protein portion. Cofactors are simple metal ion zinc, iron , copper .

Other cofactors contain complex inorganic groups that called as a coenzymes. There are most vitamins and prothestic group.

Some properties of enzyme 

• Speed up the chemical reaction.
• They are required in minute amount.
• Highly specific for their reaction.
• Affected by the temperature and pH.

How enzymes used in daily life..?

• Very useful enzymes in our daily life are proteases, amylase or lipase which can used in detergents.
• Business such as food industry use enzymes to enhance flavor help in digestion, improve nutritional value of foods and reduce allergenic effects.
• Daily uses in home to convert milk into yogurt or curd its happening because of enzymes action and bacteria.
• Huge role of enzymes in Dairy food industry to make many products with the help of enzymes example are yougrd, cheese, bread, butter etc.

Enzymes function in body

Enzymes catalysed all kinds of chemical reaction in our body. They are involve in our growth, blood coagulation, healing, protected from disease , breathing, digestion to digest the food, reproduction and many biological activities.