Comparison between Starch, Glycogen and Cellulose

Comparison between Starch, Glycogen and Cellulose

Characters	Starch	Glycogen	Cellulose
Monomer	a-glucose	a-glucose	b-glucose
Type of bond between monomers	1,4 glycosidic bond (amylose) + 1,4 and 1,6 glycosidic bond (amylopectin)	1,4 and 1,6 glycosidic bonds	1,4 glycosidic bond
Nature of chain	Amylose is coiled unbranched Amylopectin is long branched chains, some coiling	Short many branched chains, some coiling	Straight, long unbranched chains form H-bonds, with adjacent chains
Occurrence	In plants	In animals and fungi	In plants
Function	Carbohydrate energy store	Carbohydrate energy store	Structural
General form	Grains	Small granules	Fibres