試卷名稱:110年 - 110 國立中山大學碩士暨碩士專班招生考試_生科系碩士班/乙組:生物化學#105553
年份:110年
科目:研究所、轉學考(插大)◆生物化學
9. The amino acid with a side-chain pKa near neutrality and which therefore plays an important role as proton donor and acceptor in many enzyme catalyzed reactions is:
(A)histidine.
(B)cysteine.
(C)proline.
(D)serine.
(E)methionine.