SATHEE: Biomolecules and Chemistry in Everyday Life 1 Question 4

Biomolecules and Chemistry in Everyday Life 1 Question 4

4. Amylopectin is composed of

(2019 Main, 10 April I)

(a) $β$ -D-glucose, $\mathrm{C}{1}-\mathrm{C}{4} $a n d$ \mathrm{C}{2}-\mathrm{C}{6}$ linkages

(b) $α$ -D-glucose, $\mathrm{C}{1}-\mathrm{C}{4} $a n d$ \mathrm{C}{2}-\mathrm{C}{6}$ linkages

(d) $α$ -D-glucose, $\mathrm{C}{1}-\mathrm{C}{4} $a n d$ \mathrm{C}{1}-\mathrm{C}{6}$ linkages

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Solution:

Amylopectin is the water-soluble component of starch. It is a branched-chain polymer of $α$ -D-glucose. The main chain consists of an $α - 1, 4^{'}$ - glycosidic linkages between $α$ - D- $α$ - D- glucose units and the branches are connected to the main chain by $α - 1, 6^{'} -$ glycosidic linkages. Its structure can be represented as:

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Biomolecules and Chemistry in Everyday Life 1 Question 4

4. Amylopectin is composed of

Solution:

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