Glycoprotein which is Lubricant & Protective
(A) Mucin (B) Immunoglobulin (C) Ovalbumin (D) None of these
(A) Answer- A. Mucin* glycoproteins found in the body is mucins, which are secreted in the mucus of the respiratory and digestive tracts. The sugars when attached to mucins give them considerable water-holding capacity and also make them resistant to proteolysis by digestive enzymes.* O-Linked Glycans: * Mucins, which are found extensively in salivary secretions, contain many sho O-linked glycans. * Increase the viscosity of the fluids