polysaccharides are long chains containing thousands of monosaccharides most of all contain glucose as monosaccharide unit but differ in three important ways. list them. Solution A few differences between polysacharradies and monosacharadies are listed below. Monosaccharide: I) single sugar molecules. II) sweet in taste III) soluble in water IV) simple unbranched structures V) often reducing sugars Polysaccharides: I) monosacharadies are building blocks for polysaccharides II) not sweet tasting III) insoluble in water IV) complex branced structures V) non-reducing carbohydrate molecules .