The process of an enzyme at work:
There are four steps in the working process –
An enzyme and a substrate are in the same area. The substrate is the biological molecule that the enzymes will work on.
A special region of the enzyme called the active site has a shape that fits with a specific substrate molecule. An enzyme works by binding one or more specific molecules called substrates at the active site. The enzymes and substrates form an enzyme-substrate complex. Then enzymes shape slightly changes.
The interaction between the substrate and the enzyme stresses or weakens some of the chemical bonds in the substrates. These stresses encourage a link between the two substrates leading to the formation of a different molecule. As a result of the chemical interactions within the active site, a new product is formed.
Then the product is released from the active site, the enzyme assumes its original shape and is free to work again. Although this reaction has specifically illustrated the formation of a single product from two substrates molecules, other enzymes catalyze the formation of two products from a single product.
Figure: shows that the action of the enzyme