55.在酵素反應中,當受質濃度﹝S﹞遠小於 Km時,可以用來測定受質濃度,此時狀態可定義為下列何者?
(A)零級反應(zero order reaction) (B)一級反應(first order reaction) (C)二級反應(second order reaction) (D)三級反應(third order reaction)
54.在酵素動力學中,當受質濃度﹝S﹞很高時,v = Vmax,此時反應速率與﹝S﹞無關,可以用來測定酵素活性,此狀態可定義為下列何者? (A)零級反應(zero order reaction) (B)一級反應(first order reaction) (C)二級反應(second order reaction) (D)三級反應(third order reaction)