問題詳情
81.tWhy does the pH value afiect the separation of amino acids by electrophoresis? Please choose tiie wrong reason.
(A)tAmino acids exist as zwitterions.
(B)tAt low pH values, the amino acid molecules will be strongly attracted to the negative electrode.
(C)tAt high pH values, the amino add molecules will be strongly attracted to the negative electrode.
(D)tIn basic solution, the net chaise is negative due to die dissociation of the carboxylic acid groups.
(E)tNone of the above.
參考答案
答案：C
統計：A:0,B:1,C:1,D:0,E:0
難度：計算中