2014年沪科版高中生物第一册第二章2.2练习卷

适用年级:高一
试卷号:310920

试卷类型:课时练习
试卷考试时间:2017/7/27

1.单选题(共5题)

1.
某 50 肽中有丙氨酸(R 基为-CH3)2 个,现脱掉其中的丙氨酸(相应位置下如图)得到几种不同有机产物,其中脱下的氨基酸均以游离态正常存在.下列有关该过程产生的全部有机物中有关原子、基团或肽键数目的叙述错误的是(   )
A.肽键数目减少 4 个
B.氢原子数目增加 8 个
C.氨基和羧基分别增加 4 个
D.氧原子数目增加 2 个
2.
下列有关脂质的叙述,错误的是
A.脂质中的磷脂是细胞膜的组成成分
B.维生素D和性激素属于固醇类物质
C.脂肪比相同质量的多糖彻底氧化产能多
D.脂质在核糖体、内质网及高尔基体上合成
3.
在生物组织中还原糖、脂肪、蛋白质的鉴定实验中,对实验材料的选择,下列叙述错误的是
A.可用斐林试剂甲液和乙液、蒸馏水来鉴定葡萄糖和尿液中的蛋白质
B.花生种子含脂肪多且子叶肥厚,是用于脂肪鉴定的理想材料
C.食用花生油最好选用苏丹Ⅳ染液来鉴定,而一般不选用苏丹Ⅲ染液来鉴定
D.甘蔗茎的薄壁组织都含有较多糖且近于白色,因此可以用于进行还原糖的鉴定
4.
一条由39个氨基酸形成的环状多肽,其中有4个谷氨酸(R基为-CH2-CH2-COOH),则该多肽()
A. 有38个肽键 B. 可能没有游离氨基
C. 至少有5个游离羧基 D. 至多有36种氨基酸
5.
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.

2.选择题(共3题)

6.The owl often_____ a lot of noise.
7.The owl often_____ a lot of noise.
8.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

    单选题:(5道)

    选择题:(3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:1

    5星难题:0

    6星难题:2

    7星难题:0

    8星难题:2

    9星难题:0