Amino acids have both an amino group and a carboxy group in their structure. Which amongst the following is an amino acid ?

Options

A. Formic acid
B. Glycerol
C. Glycolic acid
D. Glycine

Answer

D

Explanation

Glycine is the simplest amino acid with hydrogen, as R group. Formic acid is simplest carboxylic acid molecule. It is chemically `HCOOH`. Glycerol is a polyol compound, which is chemically propane-1,2,3-triol and glycolic acid is chemically, 2-hydroxyethanoic acid.