Dictionary
Polysaccharides
In nature, these substances are widespread. The most common representatives of polysaccharides are starch, glycogen, cellulose, chitin. The main starch sources are potatoes, rice, wheat and corn. Glycogen is a reserve sugar in animals. Cellulose forms the major part of the plant tissue and is one of the main components of wood (together with lignin). Man and other animals cannot metabolize cellulose because they do not have the appropriate enzymes