作者orangerhana (黑面面)
看板post-b.test
标题[问题] 後医普生问题
时间Mon Jun 18 23:17:06 2012
34. Which of the following statements about plant hormones differing from
hormones in animals is correct?
(A) Plant hormones are synthesized from two or more different molecules.
(B) Animal hormones are primarily for mating and embryonic development.
(C) Plant hormones interact primarily with intracellular receptors.
(D) Animal hormones are found in much greater concentration.
(E) Plant hormones may travel in air or through vascular systems.
植物激素不是浓度比较低吗？
想请问(D)哪里错了？
正确答案是(E)
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1F：→ orangerhana:忘了谢谢大家 06/18 23:17
2F：推 tekkaman:D应该是BY CASE，但E一定是对的，至少有乙烯，题库出来的 06/19 00:16
3F：→ tekkaman:动物激素未必较浓的原因是，他们可以用PROTEIN去带 06/19 00:17
4F：→ tekkaman:再来个受体媒介内吞。 06/19 00:18
5F：→ orangerhana:但动物不是也有空气传播的？像是女生MC同时...等 06/19 00:19
6F：→ Leanovia:楼上指的是费洛蒙(pheromone)造成MC同步.但它不是hormone 06/19 01:08
7F：→ orangerhana:QQ............. 06/19 01:16
8F：推 smallerfat:E选项campbell上面有讲，D选项应该是要考动物激素浓度 06/19 10:53
9F：→ smallerfat:很低也可以靠一些二级传递的放大反应(ex:cAMP)来作用 06/19 10:54
10F：→ smallerfat:所以浓度不一定要高於植物 06/19 10:54