Enzyme inhibitors are molecules that interfere with the normal functioning of enzymes by binding to them and preventing them from catalyzing their usual reactions. These inhibitors can be used for a variety of purposes, including studying enzyme function, designing drugs to treat diseases, and controlling metabolic pathways in biological systems. There are several types of enzyme inhibitors, including competitive inhibitors, non-competitive inhibitors, and uncompetitive inhibitors, each of which affects enzyme activity in different ways. Understanding enzyme inhibitors is essential for the development of new therapeutic agents and the study of biochemical processes in living organisms.