What is the structural and functional difference between polysaccharides and glycosaminoglycans

Expert Solution

Polysaccharides are complex carbohydrates which consist of multiple monosaccharides with other structures. These monosaccharide units are bonded with glycosidic linkages. Starch, cellulose, glycogen and chitin are best examples of polysaccharides.
Glycogen and Starch are composed of glucose units. starch acts as storage form in plants and Glycogen is the storage form in animals. Cellulose is the main structural components in plants.
Glycosaminoglycans are long un-branched polysaccharides which are composed of repeating disaccharide units and also called as GAGs or mucopolysaccharides due to their viscous and lubricating properties. They are essential to life and important components of connective tissues. GAG chains are covalently bonded to other proteins like chemokines, cytokines, morphogens, growth factors, enzymes and adhesion molecules and forming proteoglycans. these perform extracellular and sometimes intracellular functions. Heparin is a glycosaminoglycan, acts as a natural anticoagulant substance.

queen_honey_blossom answered 1 year ago

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