5. Refer to Exhibit A. The pI of an amino acid is the pH at which it has a zero net charge.
What is the increasing order of isoelectric points (low pH to high) for these three amino
acids?
(A) ALA, HIS, ASP
(B) ASP, ALA, HIS
(C) HIS, ALA, ASP
(D) ALA, ASL, HIS
(E) ASP, HIS, ALA
阿摩線上測驗
登入