問題詳情
5. Steroid hormones, such as glucocorticoids, affect their action by:
(A) binding to a plasma membrane receptor and then activating the kinases cascade.
(B) binding the plasma membrane receptor, which stimulates the receptor to enter the cell.
(C)entering into the cell and affecting the production of secondary messengers.
(D) entering into the cell and then acting as transcription regulators.
(E) none of the above.
參考答案
答案：D
難度：計算中-1
書單：沒有書單，新增
用户評論
【GJ】評論
脂溶性荷爾蒙(steroid)可以直接進入細胞質或細胞核內不須第二傳訊者激素可以直接活化特定基因通常常做轉錄因子(A) (B)為水溶性傳訊者特性 通常在細胞膜上(C) 也是水溶性特性 需經過第二傳訊者 脂溶可以直接進入不須第二傳訊故選(D)