护理入学考试生物练习卷（附答案）

免费可打印的护理入学考试生物练习卷：8 道题，从简单到考试水平，附答案。可打印或另存为 PDF。

新练习卷在线练习，附提示

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姓名: ____________________   日期: ____________

1.简单

What is endocytosis?

  1. AReleasing material from the cell by fusing vesicles with the membrane
  2. BSplitting the cytoplasm after the nucleus divides
  3. CMoving water across the membrane by osmosis
  4. DTaking material into the cell by folding the membrane around it
2.简单

What is the main material in the cell wall of bacteria?

  1. ACellulose
  2. BChitin
  3. CPeptidoglycan
  4. DKeratin
3.简单

Which of these hormones is a steroid?

  1. AGrowth hormone
  2. BGlucagon
  3. CTestosterone
  4. DInsulin
4.中等

Why does ice float on liquid water?

  1. AHydrogen bonds hold ice in an open, less dense structure
  2. BIce contains more air than liquid water
  3. CIce is denser than liquid water
  4. DIce molecules are lighter than liquid water molecules
5.中等

Nerve cells release chemical messengers (neurotransmitters) stored in vesicles. By which process are they released?

  1. APhagocytosis
  2. BOsmosis
  3. CEndocytosis
  4. DExocytosis
6.中等

原核细胞和真核细胞中都有哪种结构？

  1. A细胞核
  2. B内质网
  3. C线粒体
  4. D核糖体
7.困难

The coding part of an mRNA is 900 bases long, including the start codon and the stop codon. How many amino acids are in the protein?

  1. A298
  2. B300
  3. C299
  4. D900
8.困难

A pre-mRNA is 3000 bases long, and 1200 bases of introns are removed. If all remaining bases code for amino acids, what is the largest number of amino acids in the protein?

  1. A1800
  2. B1000
  3. C600
  4. D400

答案

  1. 1. D · Taking material into the cell by folding the membrane around it
  2. 2. C · Peptidoglycan
  3. 3. C · Testosterone
  4. 4. A · Hydrogen bonds hold ice in an open, less dense structure
  5. 5. D · Exocytosis
  6. 6. D · 核糖体
  7. 7. C · 299
  8. 8. C · 600

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