Question

Lysine, $H_{2}N-(C{H}_2{)}_4-\underset{N{H}_2}{\underset{|}{CH}}-COOH$ is ......... .
(a) $\alpha -$ amino acid (b) basic amino acid
(c) amino acid synthesised in body (d) $\beta -$amino acid

Answer 1

Answers: (a), (b), and (c)
Lysine whose structural formula is written below as
$H_{2}N-(C{H}_2{)}_4-\underset{N{H}_2}{\underset{|}{CH}}-COOH$
(a) It is an $\alpha$ amino acid.
(b) It is a basic amino acid because number of $N{H}_2$ groups (2) is greater than number of COOH group (1).
(c) It is a non-essential amino acid. Because it is synthesised in our body.