Substances required in enzyme reactions. This substance binds to enzymes and forms an enzyme-substrate complex

Is a specific site to bind substrates to enzymes and form an enzyme-substrate complex

Adding of 'ase' to the substrate

Act rapidly, required in small quantities, reusable, speed up biochemical reactions, and some needs cofactors

Enzymes that are synthesised in a cell for ints own use

Enzymes that are secreted outside the cell

The binding of a molecule substrate on an active site of enzymes is specific like a ‘lock and key’. The enzyme is represented by a ‘lock’ and the substrate is represented by a ‘key'

Temperature, pH, substrate concentration, and enzyme concentration

Most enzymes: pH 6-8, salivary amylase: pH 6.8, pesin: pH 1.5-2.5, trypsin: 8.5