Ncert Exercises & Solutions

Lysine, $H_{2} N - {({CH}_{2})}_{4} - CH - COOH$
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${NH}_{2}$ ...............

1. $α$ -amino acid

2. basic amino acid

3. amino acid synthesized in the body

4. $β$ -amino acid

(a, b, c)

Lysine whose structural formula is written below as

$H_{2} N - {({CH}_{2})}_{4} - CH - COOH$
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${NH}_{2}$

(a) It is an a-amino acid

(b) It is a basic amino acid because the number of NH, groups (2) is greater than the number of COOH groups (1).