Unity and Diversity A.5 Viruses - 题库网 (tiku.one)

1#

Which is characteristic of bo ca(eh yw,*rr0th 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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2#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Viruses, compared to living organisms, arlj*8s ao0kvwpy *1h.ye very small. Which other characteristic listed below distinguishes viruses from unicellular living orgalh *wp. 18kjsy 0o*vyanisms?

A. Contain genetic material

B. Contain cytoplasm

C. Lack enzymes

D. Genetic material is surrounded by a capsid

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3#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Bacteriophages and coronaviruses are both virusepmsxm) 0s4 vtl/gtc19 w9el.is affecting living organisms. Which structures are present in both bacteriophag x sl)t evl.40tc9/mmgis1wp9es and coronaviruses?
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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4#

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 viruses,q rwjcb8f8:4 w prokaryotes and euka: wc8rfw4q8 bjryotes?

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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5#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Which of the following components of some viruses l. l m2lqgh/,sare not present in both the bacterioql/ hgl 2s.l,mphage and 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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6#

问答题 ( 1.0 分) 切至整卷模式搜藏此题

The image below shows a virus which reproduces using thwf,z+oi ;los+i2y/ 1j8* j4zbqfpdk he lytic or lysogenic cycle. jk8lz2+ ,wp1ofsz ;dq+jii4hf/b*y o

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.

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7#

填空题 ( 1.0 分) 切至整卷模式搜藏此题

The image below shows the human immunodeficiency nenrl,9k:q 8 qvirus (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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8#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Some bacteriophages infect host bacteria using thenazb nbd0 vjee7*liqi: d39// lytic cycle or the lysogenic cycle. Which process is characteristi:e*n3d qnl/v7ea zb9ibjd / 0ic of the lysogenic cycle 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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9#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Which is not a factor in the rapid evolution of the humawwmc8gw: px vrke7972n immunodeficiency virus?xewwrkg 8:72mcv p 9w7

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. Which stj 1kp ;ddbp l wq*wf4tod0a3s;jy6,)hatement is not evidence that viruses have origins in other ob;;sp ) ldj q16dj0dk, hfww*ay3p4 otrganisms?

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 of genetic material found in virusgqfge pk(m6 mwdubcq8;m77;6c /z)r d(et4fves.

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.

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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 belo -9ih0o5u mj k-noimb)ybm; p*w. 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 i91zz) (*gfgvaul c3mof HIV transmission and its effects on the immune system. f9zl g1 cgzv u*a)(3im

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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14#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Which is not characteristic of HI0a0 1w-zqwha2aff2 3;wof padV?

A. The viral RNA encodes for reverse transcriptase

B. Spike glycoproteins allow for entry into CD4 cells

C. Two single strands of RNA are encased in a capsid

D. Integrase proteins are required for entry into a host cell

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