Enzymes are specific proteins which act as biological catalysts that speed up the rate of chemical reactions without undergoing any change themselves
- A catalyst is a substance which speeds up the rate of reactions without undergoing any chemical changes itself.
- The molecule on which an enzyme acts is called a substrate. The substrate binds with the active site of the enzyme.
- Active site is the part of the enzyme to which the substrate molecule attaches.
- The substance formed as a result of enzyme action is the product.