問題詳情

9. Which of the following statements regarding second messenger is correct?

(A) A hormone that acts on a target cell, not one of the releasing factors or trophic hormones that act on specific endocrine glands

(B) A substance that brings about a desired effect in a cell as a result of a hormone binding to its receptor on the cell surface

(C) A hormone that affects the DNA of the target cell

(D) None is correct

(E) All are correct

參考答案

答案：99

統計：A:0,B:0,C:0,D:0,E:0

難度：計算中