题目

Are you too old for fairy tales? If you think so, Copenhagen is sure to change your mind. See the city first from the water. In the harbor sits Denmark’s best-known landmark: the Little Mermaid. Remember her? She left the world of the sea people in search of becoming a human in one of Hans Christian Andersen’s beloved fantasies. From the harbor you can feel “city of green spires (尖顶)”. At dawn or on a cloudy day, the copper-covered spires of old castles and churches give the city a dream-like atmosphere. You’ll think that you’ve stepped into a watercolor painting. Copenhage图1为高等动物细胞亚显微结构模式图,图2表示细胞间通讯中信号分子对靶细胞作用的一种方式。(1)图1的⑨对细胞的生命活动至关重要的功能特性是           。(2)从化学成分角度分析,艾滋病病毒与图1中结构           (填序号)的化学组成最相似。(3)图2中①为信号分子,结构②的组成成分是            。(4)在图1中,能发生碱基互补配对现象的细胞器有__________(填序号)。将该细胞置于质量分数5%的葡萄糖溶液(等渗溶液)中,一段时间细胞也会涨破,其原因可能是                            。(5)具有图1细胞的生物,在生态系统的结构中不可能是            成分。(6)研究推测,水分子的跨膜运输不是真正的自由扩散,它最可能与膜上的蛋白质有关。科学家试图从肾小管壁细胞膜上寻找这种蛋白质,以这种细胞为实验材料的最可能依据是                              。
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