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where, x is the number of carbon atoms (usually a large number between 200-2500)

See the below polysaccharide structure for clearer understanding. [Image to be added Soon]

Heteropolysaccharides and Homopolysaccharides are the two types of polysaccharides that are described in the following:

Polysaccharides can be classified into two classes, namely, homopolysaccharides and heteropolysaccharides. The former type is made up of monosaccharide units and examples include cellulose, glycogen and starch. The latter type is made up of two or more types of monosaccharide units. Eg: Agar

Some examples of structural polysaccharides are arabinoxylans, chitin, pectins and cellulose. Arabinoxylans are present in both the primary as well as secondary cell walls of plants and consist of two sugar arabinose and xylose. Cellulose is the structural component of plants; it is found largely in wood, paper and cotton. It is made up of repeated glucose units bonded by beta linkages. Chitin is a naturally occurring polymer and forms the structural component of many animals like exoskeletons. Pectins are complex polysaccharides and are present in most of the primary cell walls and non-woody parts of the plants. 3.Which are the Three Main Polysaccharides Associated with Human Nutrition? Starch, Cellulose and Glycogen are the three main polysaccharides associated with human nutrition and the first two are obtained from plants; whereas glycogen is the storage polysaccharide made by the human liver and muscles.