1.2.2 Oligosaccharides contain two (disaccharides or a few monosaccharides joined by glycosidic bonds(e.g, lactose, sucrose, maltose,1d some covalently linked sugars in glycoproteins a glycoli Ias 1.2.3 Polysaccharides contain long chains of hundreds to thousands)monosaccharide units cellulose, chitin, and glycosangi glycogen, starch, joined by glycosidic bonds(e.g Iminoglycans)1.2.2 Oligosaccharides contain two (disaccharides) or a few monosaccharides joined by glycosidic bonds (e.g., lactose, sucrose, maltose, some covalently linked sugars in glycoproteins and glycolipids). 1.2.3 Polysaccharides contain long chains of (hundreds to thousands) monosaccharide units joined by glycosidic bonds (e.g., glycogen, starch, cellulose, chitin, and glycosaminoglycans)