Polysaccharides (polyosides) are condensates of several cyclic oses:
Poly (β-D-Glucose (1 → 4) β-D-Glucose)
Constituent of plant's cell wall, it is the most common natural polymer on earth. Used to make paper, cellophane and rayon.
Poly (α-D-Glucose (1 → 4) α-D-Glucose), ramifications by rare (1 → 6) bonds .
Starch is a reserve substance of plants, it is an important constituent of the diet. Glycogen is the reserve substance of animals and man, it is manufactured and stored in the liver and muscles.