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Biomolecules — BIOLOGY STD 11 Science — Question

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

Answer

  1. Proteins

Explanation:

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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