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Question
What is the basic structural difference between starch and cellulose?
Solution
Starch consists of two components − amylose and amylopectin. Amylose is a long linear chain of α−D−(+)−glucose units joined by C1−C4 glycosidic linkages (α-link).
Amylose
Amylopectin is a branched-chain polymer of α-D-glucose units, in which the chain is formed by C1−C4 glycosidic linkage and the branching occurs by C1−C6 glycosidic linkage.
Amylopectin
On the other hand, cellulose is a straight-chain polysaccharide of β-D-glucose units joined by C1−C4 glycosidic linkage (β-link).
Cellulose
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