In general, what makes one kind of amino acid different from other amino acids?
A) the amino group
B) the carboxyl group
C) the side group
D) the type of bonds

Question

Quizplus · Accepted Answer

Amino acids all have the same basic structure, including an amino group and a carboxyl group, but the side group (also known as the R group) is unique to each amino acid. This side group determines the physical and chemical properties of the amino acid, which in turn affects its role in proteins and other biological processes. Therefore, the answer is the side group.

In General, What Makes One Kind of Amino Acid Different