NEET BIOLOGY

Detailed explanation-1: -Two monosaccharide molecules may chemically bond to form a disaccharide. The name given to the covalent bond between the two monosaccharides is a glycosidic bond. Glycosidic bonds form between hydroxyl groups of the two saccharide molecules.

Detailed explanation-2: -The formation of an acetal (or ketal) bond between two monosaccharides is called a glycosidic bond or glycosidic linkage. Therefore, disaccharides are sugars composed of two monosaccharide units that are joined by a carbon–oxygen-carbon linkage known as a glycosidic linkage.

Detailed explanation-3: -Glycosidic bonds join monosaccharides or longer sugar chains to other carbohydrates, forming disaccharides, oligosaccharides and polysaccharides. It is a type of covalent bond.

Detailed explanation-4: -A glycosidic bond is formed between the hemiacetal or hemiketal group of a saccharide (or a molecule derived from a saccharide) and the hydroxyl group of some compound such as an alcohol. A substance containing a glycosidic bond is a glycoside.

Detailed explanation-5: -There are are two types of glycosidic bonds-1, 4 alpha and 1, 4 beta glycosidic bonds. 1, 4 alpha glycosidic bonds are formed when the OH on the carbon-1 is below the glucose ring; while 1, 4 beta glycosidic bonds are formed when the OH is above the plane.