component that distinguishes one amino acid from another is its:
A)side group.
B)backbone.
C)size.
D)shape.

Question

Quizplus · Accepted Answer

The side group or R-group is the component that distinguishes one amino acid from another. This is because the side group is unique to each amino acid and can vary in size, shape, and chemical properties. The backbone of all amino acids is the same, consisting of an amino group, a carboxyl group, and a central alpha carbon. Size and shape may play a role in determining the function of the protein, but they do not distinguish one amino acid from another. The side group, also referred to as the "R" group, is what distinguishes one amino acid from another. While all amino acids have the same backbone structure, their side groups can vary greatly in size, shape, and chemical composition. This variation in side groups is what gives each amino acid its unique chemical and physical properties.

Component That Distinguishes One Amino Acid from Another Is Its