question_answer 18)

  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

Answer:

                  (d) Glycine is the simplest amino acid with an amino group and a carboxyl group. Whereas formic acid is the simplest carboxylic acid, glycerol is a fatty acid and glycolicacid is carboxylic acid substituted with hydroxyl group.