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Biomolecules — Chemistry STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 ScienceChemistryBiomolecules3 Marks
Question
Define the following with a suitable example in each:
  1. Oligosaccharides
  2. Denaturation of protein
  3. Vitamins
✓

Answer

  1. Carbohydrates that yield two to ten monosaccharide units, on hydrolysis, are called oligosaccharides.
Example: Sucrose or any other.
  1. When a protein in its native form, is subjected to physical change like change in temperature or chemical change like change in pH, the hydrogen bonds are disturbed. Due to this, globules unfold and helix get uncoiled and protein loses its biological activity.
Example: Boiling of egg.
  1. Organic compounds required in the diet in small amounts to perform specific biological functions for normal maintenance of optimum growth and health of the organism.
Example: Vitamin A.

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