1.

Write the classification of amino acids , giving examples.

Answer»

Solution :The `alpha`-amino acids are of three types-acidic, BASIC and neutral.
(1) Acidic amino acids : If carboxyl GROUPS are more in number than amino groups then amino acids are acidic in nature .
Examples : Glutamic acid HOOC-`CH_(2)-CH_(2)-`, Aspartic acid `HOOC-CH_(2)-`
(2) Basic amino acids : If amino groups are more in number than carboxyl groups then amino acids are basic in nature .
Examples : Arginine `H_(2)overset(+)N=underset(NH_(2))underset(|)C-NH-(CH_(2))_(3)-`, Lysine `H_(2)N-(CH_(2))_(4)-`
(3) Neutral amino acids : The amino acids EQUAL number of amino and carboxyl groups are called neutral amino acids.
Example : Alanine `CH_(3)-`, Valine `(CH_(3))_(2)-CH`


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