An amino acid acts as a base in body fluids when:
A)a carboxyl group donates a hydrogen ion
B)a carboxyl group picks up an excess hydrogen ion
C)an amine group donates a hydrogen ion
D)an amine group picks up an excess hydrogen ion

Question

Quizplus · Accepted Answer

Amino acids act as bases when their amine groups pick up hydrogen ions from the solution, increasing the pH by reducing the concentration of H+ ions.

An Amino Acid Acts as a Base in Body Fluids