Polysaccharides are a group of complex Carbohydrates that are made up of several simple monosaccharides.

Carbohydrates can be simple or complex

Glycosidic bonds are bonds that hold separated monosaccharides together into the more complex sugars

Are not sweet in taste like monosaccharides

A few catagories of carbohydrates include:


1.)  Homopolysaccharides –  all monosaccharides are the same

2.)  Heteropolysaccharides –  more then one different types of monosaccharides


Functions of Polysaccharides

  • Storage
  • Plant cellular structure
  • Found in many Bacteria for protection or metabolism


1.) Starch

  • Is very similar to glycogen
  • However, it is found in plant cells
  • Also can be seen in some protists and bacteria.
  • Made up of Amylose and Amylopectin

2.)  Cellulose

  • A major component of cellular structure of plants with a large amount in plant walls
  • Is very strong and helpful with support of the plant
  • It is specialized enough to allow water and some solutes to pass in and out of cell.

3.)  Chitlin

  • Similar to cellulose
  • Found in arthropods such as sponges and mollusks
  • Also found in cell walls of fungi and some algae

4.)  Glycogen

  • Is found in nearly all animal cells
  • Can also be found in some protozoa and algae
  • In mammals and humans this compound is stored in the liver and muscles..
  • It is the main form of storage of carbohydrates in the body
  • Glycogen is thus broken down into glucose for use.
  • During a 24 hour fast – almost the entire reserve is consumed

5.)  Peptidoglycan

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