The isoelectric point of alanine is pH = 6.15. It is mixed with proline pH_COOH= 2.0; pH_NH2 = 10.6), and the mixture is placed in an electric field at pH 6.15. Which statement is true? A) The two amino acids will be separated. B) The two amino acids will not be separated. C) Neither amino acid will move in the electric field. D) Both amino acids will move from the origin and be separated.

Question

Quizplus · Accepted Answer

At pH 6.15, alanine is at its isoelectric point and will not move in an electric field, while proline, with a different isoelectric point, will move, leading to separation.

The Isoelectric Point of Alanine Is PH = 6