Department of Pre-University Education, KarnatakaPUC Karnataka Science Class 12
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Chemistry: Biomolecules - Carbohydrates - Polysaccharides

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Write the structural difference between starch and cellulose.

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Solution

StarchCellulose
Starch is made of α-1, 4 linkages.Cellulose is made of β-1, 4
linkages.
Starch is found in both linear and branched chainsCellulose is mostly linear chains of glucose molecules
Starch occurs in two forms—
amylase and amylopectin
Cellulose occurs in nature as
pure cellulose, hemicellulose or lignin.
Starch functions as a storage
polysaccharide
Cellulose functions as a structural polysaccharide.


Concept: Carbohydrates - Polysaccharides
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