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Biomolecules — BIOLOGY STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceBIOLOGYBiomolecules1 Mark
MCQ
Nitrogen is the main constituent of:
  • A
    Fats
  • ✓
    Proteins
  • C
    Polyphosphates
  • D
    Carbohydrates
✓

Answer

Correct option: B.
Proteins
Proteins are the linear chain of amino acids formed by joining together of a number of amino acids through peptide bonds.
The peptide bond between two amino acids is formed by a condensation reaction between amino group of one amino acid and carboxylic group of another amino acid.
The amino acids are amphoteric compounds having both basic $($amino$)$ as well as acidic $($carboxylic$)$ groups.
The amino acids are rich in nitrogen because of the amino group. Protein contains $16\%$ of nitrogen.

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