Characteristics of enzyme catalysis: Asinglemolecule of this catalysis can transform a million molecules of the reactant per second. Hence it is highly efficient. These biochemical catalysts are unique innaturei.e. the same catalyst cannot be used in more than one reaction.

There are four steps in theprocessof an enzyme working. (1) An enzyme and a SUBSTRATE are in the same area. The substrate is the biological molecule that the enzyme will work on. (2) The enzyme grabs onto the substrate with a special area called the ACTIVE SITE

Enzyme catalysed reactions occur at a particular place on the surface of the largeenzyme moleculecalled the active site (as inheterogeneouscatalysts). Thereactant molecule, often called the substrate, is able to form relatively weak, temporary bonds to the enzyme at the active siteThemechanism of enzyme catalysis. In order for a reaction to occur, reactant molecules must contain sufficient energy to cross a potential energy barrier, the activation energy