Chemistry · Biomolecules

JEE Main 2024 — 29 January, Shift 1 — Question 69

Type of amino acids obtained by hydrolysis of proteins is :

Option A:
$\beta$
Option B:
$\alpha$
Correct
Option C:
$\delta$
Option D:
$\gamma$

Answer: B

Step-by-step solution

Proteins are polymers of amino acids linked by peptide bonds. Hydrolysis of proteins breaks peptide bonds, releasing constituent amino acids. The amino acids in proteins have the amino group $(-NH_2)$ attached to the carbon atom adjacent to the carboxyl group $(-COOH)$ . This carbon is called the $\alpha$ -carbon. Therefore, these amino acids are classified as $\alpha$ -amino acids. Thus, hydrolysis of proteins yields $\alpha$ -amino acids. Hence, the correct option is B.

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Exam: JEE Main 2024
Paper: 29 January, Shift 1
Subject: Chemistry
Chapter: Biomolecules
Topic: proteins