The functional group found in proteins is called a (an)
A)amide.
B)carboxylic acid.
C)amine.
D)amino acid.
E)dipeptide.

Question

The functional group found in proteins is called a (an)  
A)amide. 
B)carboxylic acid. 
C)amine. 
D)amino acid. 
E)dipeptide.

Quizplus · Accepted Answer

The functional group found in proteins is an amide group, which links amino acids together through peptide bonds. Amino acids themselves contain both an amine group (NH2) and a carboxylic acid group (COOH) but it is the amide bond between them that forms the backbone of proteins. Therefore, choices B, C, D, and E are incorrect.

The Functional Group Found in Proteins Is Called a (An)