31. 將一個 pI = 9 之蛋白質溶於 pH = 7 之緩衝溶液時,下列有關該蛋白質之敘述何者正確?
(A)其淨電荷(net charge)為零
(B)其淨電荷(net charge)小於零
(C)其淨電荷(net charge)大於零
(D)其鹼性殘基之側鏈(side-chain)處於不帶電的狀態(uncharged state)
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統計: A(65), B(193), C(634), D(80), E(0) #885948
統計: A(65), B(193), C(634), D(80), E(0) #885948