All Amino Acids Contain What Functional Group(s)

Question

All amino acids contain what functional group(s)?
A) aldehyde
B) amino
C) ester
D) carboxyl
E) both amino and carboxyl

Accepted Answer

All amino acids contain both an amino group (-NH2) and a carboxyl group (-COOH) on the same carbon atom, called the α-carbon. This gives amino acids their characteristic acidic and basic properties.