What good are polysaccharide?

Answer 1

In animals, they are primarily energy storage molecules, although there are a lot of polysaccharide chains that do many extremely important jobs on the membranes of body cells.

In plants, they are not only very important food storage molecules (starch), they also serve as structural materials (cellulose) and components in wood.

Answer 2

The polysaccharide starch stores energy in the form of glucose molecules. The polysaccharide cellulose makes up the cell walls of plant cells, giving them structural support.