Question

Which compound contains both carbxyl and amino functional groups in the same molecule

A. starch
B. nucleic acid
C. amino acid
D. glucose

Answer 1

Amino acids are the compounds that contain both carboxyl and amino functional groups.

The answer is C.

Answer 2

Amino acid is the molecule which contains both the carboxyl and amino functional group in the same molecule.

Step-by-step explanation:

Amino acid is R(NH2)COOH.

It has both an amine group(NH2-) and a carboxylic acid group(COOH -) in the same molecule.Thats why its called an amino acid.

Starch is a polysaccharide.That means its composed of many sugar molecules.

Nucleic acid is composed of Phoshpate group - sugar - nitrogenous base

Glucose is a carbohydrate.And it contains only C,H and O in it.

Hence we can say that starch,nucleic acid and glucose doesn't contain amino group or carboxylic group or both together in same molecule.