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PART - 1 - Unit III : CH - 9 Biomolecules — BIOLOGY STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceBIOLOGYPART - 1 - Unit III : CH - 9 Biomolecules3 Marks
Question
Write any four differences between disaccharides and polysaccharides.
✓

Answer

Differences between disaccharides and polysaccharides

S. No.DisaccharidesPolysaccharides
1.They are formed by the joining of two molecules of monosaccharide sugar.They are formed by the joining of more than two monosaccharide molecules.
2.On their aqueous decomposition, two monosaccharide molecules are obtained.That is, there can be thousands of units of monosaccharide. On their aqueous decomposition, many monosaccharide
molecules are obtained.
3.It is soluble in waterIt is insoluble in water.
4.They get oxidized easily. Therefore, it is the main source of energy for living beings. Example: Sucrose, lactose.Their oxidation does not happen easily. It is found in the form of stored food in plants. Example: Starch, cellulose.

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