Catalysis is the addition of a substance that is not consumed during the reaction to change the rate of a chemical reaction, usually an acceleration. The velocities at which chemical reactions occur are determined by a variety of factors, including the chemical composition of the reacting species and the external conditions to which they are exposed.
Biocatalysis is a chemical reaction that is carried out by enzymes or other biological catalysts between organic components. In the pharmaceutical industry, biocatalysis is commonly used to make small molecule therapeutics.
Organocatalysis (a combination of the terms "organic" and "catalyst") is a type of catalysis in which the rate of a chemical reaction is boosted by an organic catalyst called an "organocatalyst," which is made up of carbon, hydrogen, sulphur, and other non-metal elements found in organic compounds.
Inorganic catalysts, also known as heterogeneous catalysts, are metal-supported substrates that mimic the exquisite function of Nature's catalysts: enzymes. The metal connects to a solid through absorption.