A polysaccharide is a large molecule made of many smaller monosaccharides. Monosaccharides are simple sugars that are linked together by glycosidic bonds. Polysaccharides are a class of carbohydrates and biopolymers. They can have different functions in nature, such as energy storage, structural support, or cell recognition. Examples of polysaccharides include starch, glycogen, cellulose, and chitin.

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