Amino acids have both an amino group and a carboxyl group in their structure. Which amongst the following is an amino acid ?
(a) Formic acid (b) Glycerol
(c) Glyolic acid (d) Glycine
(d) Glycine is the simplest amino acid with an amino group adn a carboxyl group. Whereas formic acid the simplest carboxylic acid, glycerol is a fatty acid adn glycolic acid is carboxylic acid substitued with hydroxyl group.