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Biomolecules — Chemistry STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 ScienceChemistryBiomolecules2 Marks
Question
What is the basic structural difference between starch and cellulose ?
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Answer

The basic structural difference between starch and cellulose is of linkage between the glucose units. In starch, there is $\alpha$-D-glucosidic linkage. Both components of starch amylopectin and amylose are the polymers of $\alpha$-D-glucose. On the other hand, celluose is a linear polymer of $\beta$-D-glucose in which $C _1$ of one glucose unit is connected to $C _4$ of the other through $\beta$-D-glucosidic linkage.

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