Monosaccharides are simple molecules of carbohydrates that cannot be broken into smaller molecules of other carbohydrates. Oligosaccharides are carbohydrates made by union of a maximum of 10 monosaccharides. Polysaccharides are polymers of monosaccharides made of more than 10 units of such monomers. The most important polysaccharides are cellulose, starch, glycogen and chitin.
