Question

The oxide linkage formed by the loss of a water molecule when two monosaccharides are joined together through oxygen atom is called:

• A. Carboxylic linkage
• B. Carbonyl linkage
• C. Peptide linkage
• D. Glycosidic linkage

Answer 1

The oxide linkage formed by the loss of a water molecule when two monosaccharides are joined together through oxygen atom is called glycosidic linkage.

For example:In sucrose, D-(+) glucose and D-(-) fructose are held together by a glycosidic linkage between C₁ of α-glucose and C₂ of β-fructose. Since the reducing groups of glucose and fructose are involved in glycosidic bond formation, sucrose is a non reducing sugar.