#beta glucose

[xeno359]

Polysaccharide: Cellulose

Cellulose is formed by the condensation of Beta glucose.

 - Forms cell walls of plants. Structural strength comes from the many hydrogen bonds formed between chains. 

- Can only be digested by ruminants, as it is hard to break down, with microorganisms that produce cellulase.

 - Is permeable to allow water and dissolved substances to pass though, cell wall prevents cell bursting from osmosis. Also helps maintain structure during drought. 

[xeno359]

Glucose has two Isomers: Alpha and Beta glucose. 

Isomers are molecules with the same chemical formula but a different chemical structure. 

Alpha Glucose is used to form Starch. Long chain structure, but with branches formed by glycosidic bonds.  

Beta Glucose is used to form Cellulose in Plants. Long chain structure, but no branches. Formed weak bonds with neighbouring chains. 

Starch and Glucose is formed by glycosidic bonding. 

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Starch:( https://en.wikipedia.org/wiki/Starch )

Cellulose: ( http://www.joostdevree.nl/shtmls/cellulose.shtml )

Isomers: ( https://en.wikipedia.org/wiki/Isomer )