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

1#

Which is characteristic of both prokaryotes and viruses? 2ntx5rjhh8g vqh9m hpy- e 7x7;z2s 8a

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, are very small. Which other ch vbr19q 5td9bfaracteristic listed below distingd9t1 fb bvq59ruishes 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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3#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Bacteriophages and cor;gaz c r7vyyt kl9/+)hb4z)ufonaviruses are both viruses affecting living organisms. Whictlr7zyu4)b v/ z9)g hkcy;f+ah structures are present in both bacteriophages 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, prokaryoly)ko*ds1 fv* tes an*ovdl 1y*)f ksd eukaryotes?

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 are not present in bo4axyy8hj *n/at6533 nz fawfjth the bacteriophage and corony 3zn4x n6*fjfaahay5w8tj / 3avirus?

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*kj jsqv7m8:14a sfva9y8ej; jy8sm s using the lytic or lysogenic cycle7mk8 seq1*8av 4s sfsj89 ma:;jy yjjv.

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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7#

填空题 ( 1.0 分) 切至整卷模式搜藏此题

The image below shows the human immunodeficie3 :lpd dl93)hynnkvr2ncy 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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8#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Some bacteriophages infect host bacteria using thq9:b1x)g6b 4it htzvze lytic cycle or the lysogenic cycle. Which process is cha46qz t 9b:tx1h)z igvbracteristic 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 human immunodefi13(y3eravuob ciency virus?yr3a bo3(uv e1

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 het6; wzyzjdc9mk2) *ymltb 8kk b :.:s-v, gnan area of active research and exploration. Which statement is not evidence that viruses have origins in other ozbvhm;k9ek t 6) znys-k,2 :yt.cd8m *: wgbljrganisms?

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 zm1eut+t 7k v5w7 n2j;:lqlswmep3f ; 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 below. Which ste)/wtg0otm 1wructure 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 transmissiodw+az:h ot7uv(paa,d)dibnr -4z16,1 c nuqcn and its effects on the immune system. h(w-n 7o vada)1ru+,z q,dt nz:d6 p4aui1cbc

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 characteristiin(u/atth 9bik t93-ec of HIV?

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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