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JEE Advanced · 2014 · 25 May 2014 · Paper 1 · Biomolecules

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The total number of distinct naturally occurring amino acids obtained by complete acidic hydrolysis of the peptide shown below is

Answer: 1

Solution

The peptide structure shows a repeating unit. Complete acidic hydrolysis of a peptide cleaves all peptide bonds, releasing the constituent amino acids.

Examining the structure: the peptide appears to be a homopeptide (composed of repeating units of the same amino acid). The structure shows cyclopropyl side chains attached to the backbone, characteristic of a single type of amino acid residue repeated multiple times.

Upon complete hydrolysis, only one distinct amino acid is obtained.

Answer: 1

JEE Advanced · 2014 · 25 May 2014 · Paper 1 · Integer answer

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