If many monosaccharides are joined together through condensation, a polysaccharide is formed.
Polysaccharides may consist of hundreds or even thousands of monosaccharide units
Examples of polysaccharides:
Starch – storage material in plants
Glycogen is a storage carbohydrate in animals like starch, but has longer chains
Isulin – a storage carbohydrate in some plants e.g. Dahlia
Cellulose – structural carbohydrate in plants
Chitin – forms exoskeleton in arthropods