Q8 · CSIR-NET Chemistry, June 2012

Paper: CSIR-NET June 2012 · Subject: Organic Chemistry · Chapter: Natural Products · Topic: Amino Acids Peptides · Marks: 2 · Difficulty: Easy

Among the following, the amino acid which is basic in nature is:

(a)Tyrosine

(b)Asparagine

(c)Leucine

(d)Arginine

Answer

Answer: D ✓ checked by 4AB · confidence high

Explanation

Arginine carries a guanidinium side chain (pKa ≈ 12.5), making it the basic amino acid; tyrosine, asparagine and leucine are neutral.

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