Starch- this is stored in organisms as a future energy source, it is a very complex molecule and therefore is not soluble allowing for the easy storage of energy for later.
Glycogen- This is stored in the liver and can be converted into glucose at a moments notice to send around the body providing energy for the muscles etc. This is also a highly complex molecule made up of a lot of Glucose molecules. It is also ,like starch, insoluble and therefore will not dissolve in water.
Cellulose- has long chains and branches which allow for tough protection of the outside of a plant cell, thhis forms the basis of the cell wall.
Pectins- These polysaccharides are used alongside the cellulose in the cell wall. They are bound by a calcium pectate and are used to bind cells together.
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