Question

select all that apply
which three groups are part of the basic structure of every amino acid?
hydroxyl group
phosphate group
carboxyl group
amino group
radical (r group)

Explanation:

Amino acids have a central carbon atom bonded to an amino group (-NH₂), a carboxyl group (-COOH), and a variable R - group. Hydroxyl (-OH) and phosphate (-PO₄) groups are not part of the basic structure of every amino acid.

Answer:

Carboxyl group, Amino group, Radical (R group)