Question

using the drop - down menus, label the parts of an amino acid. label a label b label c

Explanation:

An amino - acid has a central carbon atom bonded to an amino group (-NH₂), a carboxyl group (-COOH), a hydrogen atom, and a variable R - group. Based on the general structure of an amino - acid, we can identify the parts.

Answer:

Label A: Carboxyl group
Label B: R - group
Label C: Amino group