Difference between Catalyst, Reagent and Enzymes

Catalyst, Reagent and Enzymes are all found in any chemical reaction. When at least one reactant is changing into product, they may experience distinctive alterations and energy changes. The bonds in reactants are splitting, and forming new bonds that are distinctive from the original reactants. This sort of modification is called chemical reaction. In these chemical reactions we may use catalyst, enzymes or reagent for different purposes.


A catalyst brings down the vitality hindrance to a response, along these lines making the reaction go quicker in either course. Catalyst can be characterized as species, which expands the reaction rate, however stays unaltered. In spite of the fact that catalyst builds the speed of reaction, it doesn’t influence the equilibrium. In short catalyst is used for boosting and chemical reaction.


A reagent defines as a compound or substance inserted to system to bring about a synthetic reaction, or inserted to test that a reaction happens or not. Reactant and reagent are mostly used interchangeably.


Enzymes can be defined as macromolecular catalysts. Enzymes catalyzed or quicken the synthetic reactions. Enzymes are recognized to catalyze 5,000 biochemical reactions. Most enzymes are proteins. Enzymes’ specificity originates from their specific three-dimensional arrangement.

Catalyst VS Reagent VS Enzymes

In the following article we are going to discuss the contrasts between these elements so that we can get clear understanding about them.

  • Purpose:

Catalysts are the substances that are used for expansion or reduction the chemical reaction’s rate.

Reagent is the substance that is used to test the reaction or to identify the absence or existence of any other substance.

Enzymes are the substance i.e. proteins that are used for expansion in chemical reaction’s rate.

  • Types:

There are two sorts of catalysts that include positive catalyst and negative catalyst.

The reagent is ordered into three sorts that are Free radicals, electrophiles and nucleophiles.

There are two sorts of enzymes that include inhibitory and activation enzymes.

  • Consumption:

When we use catalysts in reaction it changes the rate but remain unchanged.

Reagent changes the rate and also consumed in the reaction.

Enzymes also affect the rate and it is also consumed in the reaction.

  • Nature:

Catalysts can be exists in two kinds as it may be organic catalyst and inorganic catalyst.

Reagent exists as organic and inorganic form.

Enzymes exist in organic catalyst.

  • Specific:

Catalysts are not particular and thusly wind up delivering buildups with errors.

Reagents also produce residues.

Enzymes are very particular creating expansive measure of good residues.

  • C-H bonds:

In catalyst, carbon-hydrogen bonds do not exist.

In reagent, carbon-hydrogen bonds usually exist.

In enzymes, carbon-hydrogen bonds are present.

  • Examples:

Some examples of catalysts are vanadium oxide and Wilkinson’s catalyst.

Some common reagents are ammonia, grignard reagent and bromine.

Some examples of enzymes are amylase and lipase.


From the above article we can conclude that catalyst speed up or decline the speed of reaction whereas reagent is used to test the reaction and enzymes are used to quicken the reaction’s rate and it is also consumed in the reaction. Some examples are also given above.