Unity and Diversity A.5 Viruses - 无忧得胜-网上国际课程 (5edu.win)

?作业考试练习?IB生物学?Unity and Diversity A.5 Viruses

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习题练习：Unity and Diversity A.5 Viruses

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作者: admin 发布日期: 2024-02-03 12:10 总分: 14分得分: _____________

答题人: 游客未登录开始时间: 23年07月31日 17:14 切换到: 整卷模式

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单选题 ( 1.0 分) 切至整卷模式搜藏此题

Which is characteristic of boxwe 8tba*25u;m aoj7b th prokaryotes and viruses?

I. Contain genetic code
II. Rely on host cell for metabolism
III. Surrounded by cell wall

A. I only

B. I and II

C. II and III

D. I, II and III

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单选题 ( 1.0 分) 切至整卷模式搜藏此题

Viruses, compared to living organisms, are very small 2bx)n jxbr*x8. Which other characteristic listed below di* )xnbjxb28rx stinguishes viruses from unicellular living organisms?

A. Contain genetic material

B. Contain cytoplasm

C. Lack enzymes

D. Genetic material is surrounded by a capsid

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单选题 ( 1.0 分) 切至整卷模式搜藏此题

Bacteriophages and coronaviruses are both viruses zl; 4cod e( xdvj0lw-(affecting living organisms. Which structures are present in both bacteriophages and coronavd0;d clzv4(elj o(xw- iruses?
I. cytoplasm
II. capsid
III. genetic material

A. I only

B. I and II only

C. II and III only

D. I, II and III

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单选题 ( 1.0 分) 切至整卷模式搜藏此题

Which of the rows below shows the correct characteristics of,p m(igtf//vo viruses, prokaryotes and eukaryote,/t(f v/mpgios?

A. Virus is Genome is DNA or RNA

rokaryote is Genome is DNA only;Eukaryote is Genome is DNA only

B. Virus is Genome is Rely on host cell for nutrition

rokaryote is Rely on host cell for nutrition;Eukaryote is Does not rely on host cell for nutrition

C. Virus is Genome is Synthesises ATP for energy supply

rokaryote is Synthesises ATP for energy supply ;Eukaryote is Genome is Synthesises ATP for energy supply

D. Virus is Genome is Capsid present

rokaryote is Capsid present;Eukaryote is Capsid present

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单选题 ( 1.0 分) 切至整卷模式搜藏此题

Which of the following components of s3l70(dm(dfs cyt4k5lziu 8qr8 t0lqbome viruses are not present in both the bacteriophage 0uc bi8z0tr84l(kd3qq t sm (7 fyd5lland coronavirus?

A. Genetic information surrounded by a capsid

B. RNA genome

C. Enzymes for replication

D. Structures for attachment to a host cell

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问答题 ( 1.0 分) 切至整卷模式搜藏此题

The image below shows a virus which reproduces tjpmd:zjbw p p:zd*4ko9 ,8m/ using the lytic or lysogenic cyclejzpp4:m *p8 wjto :9kb mz/d,d.

1.State two structural features common to all viruses.

2.1.Identify the name of this virus.

2.2.Label the capsid on the image.

3.Compare and contrast the lytic and lysogenic cycles.

该题自我估分: (必填) (满分:1.0分)

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填空题 ( 1.0 分) 切至整卷模式搜藏此题

The image below shows the human immunodeficien45hkg2ub2 uzrcy virus (HIV).

1.Explain the function of structure X.

2.1.Identify structure Y. Y is .

2.2.Identify structure Z. Z is .

3.State the host of this virus.

4.Describe the metabolic functions of reverse transcriptase.

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单选题 ( 1.0 分) 切至整卷模式搜藏此题

Some bacteriophages infectcr+i em7g,ml x)a3z y3 host bacteria using the lytic cycle or the lysogenic cycle. Which process is characteristic of the lysogenic cyclimcr+ye l7a3x,m ) 3gze but not the lytic cycle?

A. Phage DNA is injected into the host cell.

B. The phage inserts DNA into host DNA, forming a prophage.

C. Host bacterium is killed by cell lysis.

D. Phage proteins bind to receptors on the host bacterium cell.

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单选题 ( 1.0 分) 切至整卷模式搜藏此题

Which is not a factor in the rapid entk5 9jt ;mu,2qr0xyqvolution of the human immunodeficiency virus?;rm q5 nj9t 0yx2,ukqt

A. Genetic recombination

B. High mutation rate

C. Slow replication rate

D. Genetic diversity of host population

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10#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

The origin of viruses is an area of active research and exploration. Wh o3txhmx(8w r9ich statement is not evidence that viruses have origin3whm 9(xtox8 rs in other organisms?

A. Similarities between genome sequence in viral and cellular genes.

B. Coevolution of viruses and host.

C. Retroviral enzymes such as reverse transcriptase convert RNA to DNA.

D. Rate of mutation is rapid in viruses.

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11#

问答题 ( 1.0 分) 切至整卷模式搜藏此题

1.Outline the varied forms 6:r v u4a49grliga h8bof genetic material found in viruses.

2.Discuss the evidence supporting that the diversity of viruses exists as a result of convergent evolution.

3.Compare the structure of the coronavirus with the human immunodeficiency virus, HIV.

该题自我估分: (必填) (满分:1.0分)

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12#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

A diagram of HIV is shown belk o1lgw4qlzu *r;k1.dow. Which structure is composed of glycoproteins?

A. B. C. D.

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13#

问答题 ( 1.0 分) 切至整卷模式搜藏此题

1.Outline the methods of HIV transmission and its effects on the im-tc ;kyv /sxor bww (88t)moek)b62 mumune system. 8 u2/oy8);)( xtwbb cvmmk-eotrwk 6s

2.Discuss the need for international cooperation to fight contagious diseases such as Ebola.

3.Antibiotics are an essential tool of modern medicine. Outline the strengths and limitations of antibiotics.

该题自我估分: (必填) (满分:1.0分)

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