 In this topic, we shall discuss the digestive enzymes, carbohydrates and lipases. Carbohydrates are the enzymes which digest carbohydrates by hydrolyzing them. The carbohydrates are divided into two groups, polysaccharides and glycosidases. The polysaccharides hydrolyze the glycosidic bonds of long-chain carbohydrates, that is, cellulose, glycogen and starch. The most common polysaccharides are the amylases. Amylases are secreted by the slivery glands and pancreas. So, they are present in sliver and pancreatic juice. Amylases hydrolyze all glycosidic bonds except the terminal ones. They break glycosidic bonds within starch and glycogen. As a result, they produce disaccharides and oligosaccharides. They cannot produce free monosaccharides because they do not act on the terminal bonds. However, they break polysaccharides in shorter segments in which there are two or fewer monosaccharides. After the action of polysaccharides, glycosidases action starts, which act on disaccharides. For example, sucrose, maltose and lactose. Glycosidases are specialists to break the alpha-1,6 and alpha-1,4 glycosidic bonds which are found in disaccharides. As a result, they release free monosaccharides. Dear students, now we shall discuss the lipases, which are the enzymes to digest lipids and fats. Lipases are secreted in pancreatic juice and in the fluids secreted by intestinal epithelium. They act on emulsified fats, which are present in the form of droplets after the action of bile salts. These enzymes hydrolyze these fat droplets into monoglycerides, diglycerides and free fatty acids and glycerol. The emulsification by bile salts is necessary for lipases action to start and hydrolyze the lipids. If bile salts are in insufficient quantity, while lipases are in insufficient quantity, then in that case, fats are not emulsified and lipases are banned from eating fats because bile is not produced in them and that is why fats cannot be digested.