are the most abundant heteropolysaccharides in the human body. They a

are the most abundant heteropolysaccharides in the human body. They are highly (b) charged molecules and one from structure to form containing repeating disaccharide units of one (o They extend (e) peptide core in a ( which are linked by a specific tetrasaccharide units. Solution a)Glycosaminoglycans (GAGs)- long unbranched polysaccharides found mainly on cell surface or in the extracellular matrix (ECM) b)Negatively- which helps in take up of Ca2+, Na+, K+ etc. c) Amino sugar [either N-acetylgalactosamine (GalNAc) or N-acetylglucosamine (GlcNAc) ] d) Uronic acid [glucuronate (GlcA) or iduronate (IdoA) ] e) Perpendicularly f) Brush-like g) Proteoglycans- tetrasaccharide units composed of a glucuronate (GlcA) residue, two galactose (Gal) residues & a xylose (Xyl) residue. Thus the structure look like-                                                         GAG(n)–GlcA–Gal–Gal–Xyl–Ser–protein