Chemistry - Biomolecules Question with Solution | TestHub

Amino acids are classified as acidic, basic, or neutral based on the relative number of amino and carboxyl groups in their structure.

$\mathrm{Trp}$ (Tryptophan) contains one amino group and one carboxyl group, making it a neutral amino acid.

$\mathrm{Arg}$ (Arginine) and $\mathrm{Lys}$ (Lysine) contain more amino groups than carboxyl groups, making them basic amino acids.

$\mathrm{Glu}$ (Glutamic acid) contains more carboxyl groups than amino groups, making it an acidic amino acid.

Answer: $\mathrm{Trp}$