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試卷名稱：114年 - 114 學士後醫學系招生考試試題：普通生物及生化概論#126681
年份：114年
科目：學士後西醫-普通生物及生化概論
78. Which of the following statements about 
protein is correct?
① The Gs protein has an αβγ trimeric structure.
② The α subunit of the 
proteins displays GTPase activity.
③ The β subunit of the 
proteins has a GTP binding site.
④ 
protein is involved in activating adenylate cyclase.
⑤ Binding of cholera toxin to Gs protein results in inhibition of adenylate cyclase activity.
(A) ①②③
(B) ①②④
(C) ①③⑤
(D) ②③④
(E) ②③⑤
