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



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