Importance of Biochemistry

Catalysis Definition Types and Reactions in Chemistry

What does catalysis mean?

Catalysis in chemistry is located below here its types of reactions and biochemistry are discussed. First, we have to know about catalysis:


The term “catalysis” refers to a process that aims to modify the chemical kinetics by lowering the energy barrier to be crossed. The goal of catalysis is to increase the rate at which a chemical reaction occurs or sometimes to favor one reaction over another.

Types of catalysis in chemistry:

  1. Homogeneous catalysis
  2. Heterogeneous catalysis
  3. Enzymatic catalysis

1. Homogeneous catalysis:

Catalysis is described as “homogeneous” when the reactants and the catalyst are in the same phase. This is often the case in organic chemistry, with reagents in solution.

2. Heterogeneous catalysis :

In heterogeneous catalysis, on the other hand, the reactants and the catalyst are in different phases. Generally, the catalyst is in solid form, and the reagents are in gaseous or liquid form.

3. Enzymatic catalysis :

So-called enzymatic catalysis is a kind of link between the two. It can be considered homogeneous at the macroscopic level but, at the molecular level, the catalysis reactions are on the surface of the enzymes, as in the case of heterogeneous catalysis.

Industrial catalysis:

Many industrial processes become more cost-effective through catalytic processes. Catalysis allows for better yields, fewer steps in a process, and saves time and energy.

In the field of chemical synthesis, ammonia (NH 3 ), made from hydrogen (H 2 ) and nitrogen (N 2 ), is a good example. This reaction benefits from iron catalysis. Catalysis is also used for petroleum refining or the reduction of nitrogen oxides in catalytic converters.

Catalytic Reactions:

Catalysis in Biochemistry

The majority of biological reactions are catalytic reactions. Catalysis is, in this case, carried out by enzymes that accelerate biochemical processes such as digestive metabolism, reproduction, transcription of genetic information, etc.

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