阿摩線上測驗
13. Which of the following statements about signal transduction pathways is correct?
(A) All signaling molecules can pass directly through the plasma membrane.
(B) Protein kinases in signaling pathways often amplify the cellular response.
(C) Receptor proteins always function as ion channels.
(D) Second messengers are membrane-bound proteins.
(E) Signal transduction terminates only when the ligand is degraded.
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統計： A(0), B(6), C(0), D(1), E(0) #3852867
統計： A(0), B(6), C(0), D(1), E(0) #3852867
詳解 (共 1 筆)
123
#7375627
(A)脂溶性分子可直接過膜，極性分子需由受體才能通過
（C)GPCR, RTK, JAK STAT等
（D) second messenger 非蛋白質
（E)終止：配體解離、去磷酸化、受體胞吞、配體分解等⋯
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