江苏盐城中学2018届高三一轮复习学生作业第二单元第1讲 细胞的类型及细胞壁、细胞膜、细胞核

适用年级:高三
试卷号:311617

试卷类型:专题练习
试卷考试时间:2017/9/30

1.非选择题(共1题)

1.
胆固醇是人体中的一种重要化合物,血浆中胆固醇的含量受LDL(一种胆固醇含量为45%的脂蛋白,是胆固醇的主要载体)的影响。如下图表示细胞中胆固醇的来源。请分析并回答:
 
(1) 人体胆固醇的主要作用除参与血液中脂质的运输外,还参与构成____。
(2) 图中①过程的产物彻底水解后能得到____种不同的物质。
(3) LDL受体的化学本质是糖蛋白,LDL可以与细胞膜上的LDL受体结合后进入细胞,LDL进入细胞的方式与细胞膜的____有关。
(4) 从图中可以看出,当细胞胆固醇含量较高时,它可以抑制酶的合成和活性,也可以抑制_______的合成。
(5) 脂蛋白是蛋白质和脂质的复合体,细胞中既是蛋白质加工,又是脂质合成的“车间”的细胞器是____。据图分析可知,细胞对胆固醇的含量的合成过程存在____机制。
(6) 根据图分析,当LDL受体出现遗传性缺陷时,血浆中的胆固醇含量会____。
(7) LDL受体在细胞中合成加工依次经过的细胞器有___________________。

2.单选题(共3题)

2.
下图所示为来自同一人体的4 种细胞,下列叙述正确的是( )
A.因为来自同一人体,所以各细胞中的 DNA 含量相同
B.因为各细胞中携带的基因不同,所以形态、功能不同
C.虽然各细胞大小不同,但细胞中含量最多的化合物相同
D.虽然各细胞的生理功能不同,但吸收葡萄糖的方式相同
3.
细胞的膜蛋白具有物质运输、信息传递、免疫识别等重要生理功能。下列图中,可正确示意不同细胞的膜蛋白及其相应功能的是
A. B. C.    D.
4.
下列关于显微镜的叙述,错误的是(  )
A.电子显微镜能观察到细胞的亚显微结构
B.同一视野中,低倍镜看到的细胞比高倍镜的多
C.用光学显微镜能够观察到叶表皮上的保卫细胞
D.用光学显微镜高倍镜能观察到细菌的DNA双链

3.选择题(共1题)

5.任务型阅读

    Do you remember the last time you read a book, or a magazine? Is checking e-mails or updating microblog your daily reading habit? If you're one of those who don't make a habit of reading regularly, you might be really out.{#blank#}1{#/blank#}

    Stress Reduction

    No matter how much pressure you have at work, in your personal relationships, or other issues in daily life, it all just slips away when you lose yourself in a great story.{#blank#}2{#/blank#}

    Knowledge

    Everything you read fills your head with new information, and you never know when it might come into use.{#blank#}3{#/blank#}Besides, you might lose everything else—your job, your money, even your health, but knowledge can never be taken from you.

    Vocabulary Expansion

    {#blank#}4{#/blank#} As a result, this will gradually enlarge your everyday vocabulary. Then you might become more knowledgeable and well-spoken, which can increase your self confidence and even help you get promotions more quickly.

    Better Writing Skills

    Exposure to well-written work has a great effect on your own writing. In other words, writing styles of other authors will influence your own work.{#blank#}5{#/blank#}

    Now that reading has so many benefits, step away from your computer and go hunting for something new to read!

A. Here are some benefits of reading.

B. Here are some suggestions for your health.

C. The more you read, the more words you gain exposure to.

D. This goes hand-in-hand with the expansion of your vocabulary.

E. A well-written novel can bring you pleasure, and allow you to relax.

F. The more knowledge you have, the better-equipped you are for your life.

G. That is why beginners always learn how to write by reading the works of others.

试卷分析
  • 【1】题量占比

    非选择题:(1道)

    单选题:(3道)

    选择题:(1道)

  • 【2】:难度分析

    1星难题:0

    2星难题:0

    3星难题:0

    4星难题:0

    5星难题:0

    6星难题:3

    7星难题:0

    8星难题:0

    9星难题:1