Question

question 30
what element of their chemical structure differentiates one amino acid from another?
the amino group
the central carbon atom
the side group
the acid group

Explanation:

All amino acids have a general structure with an amino group, a central carbon atom, an acid group. The side - group (R - group) is unique to each amino acid and determines its properties and differentiates one amino acid from another.

Answer:

The side group