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試卷名稱：103年 - 103 長庚大學_研究所碩士班(含碩士在職專班)招生考試_生物醫學研究所碩士班：生物化學#126188
年份：103年
科目：研究所、轉學考(插大)◆生物化學
37. One enzyme, M protein, exhibits maximum activity at pH = 6.9. M protein shows a fairly sharp decrease in its activity when the pH goes much lower than 6.4. One likely interpretation of this pH activity is that:
(A) the enzyme is a calcium-binding protein
(B) the enzyme is found in saliva.
(C) a Asp residue on the enzyme is involved in the reaction.
(D) a His residue on the enzyme is involved in the reaction.
