Some drugs bind to a site other than, the active site of an enzyme. This site is known as

Step-by-step solution

Some drugs do not bind to the enzyme’s active site. These bind to a different site of enzyme which is called allosteric site. This binding of inhibitor at allosteric site changes the shape of the active site in such a way that substrate cannot recognise it. Non-competitive inhibitor changes the active site of enzyme after binding at allosteric site