Enzymes catalyze various biochemical reactions. Example: pepsin catalyzes the hydrolysis of protein molecules.
The catalytic reaction occurs through a specific region of the enzyme where the substrate bind. This region is called the ‘active site’.
Enzymes are notcarbohydrates. They are mostly proteins, although there are some nucleic acids (ribozymes) that act as enzymes.
Various factors like pH, temperature, the concentration of enzymes and substrates, and the presence of activators influence the rate of enzymatic reactions.