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习题练习:HL Topic A2.3 Viruses



 作者: admin发布日期: 2025-01-24 21:47   总分: 13分  得分: _____________

答题人: 匿名未登录  开始时间: 25年01月24日 11:20  切换到: 整卷模式

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1#
 
单选题 ( 1.0 分) (组内1/6) 切至整卷模式 搜藏此题  
第 1 题组 (共 6 题 6 分)
  1. Which of the following features do viruses have in common al1- qkt;t 3fxervwoo z:8o. +with living organisms wkto:roo.v l81 e+3- zqtafx;?

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2#
 
单选题 ( 1.0 分) (组内2/6) 切至整卷模式 搜藏此题  
  2. Which of the following factors complicates the treatment ofd (p07u r)gdqo human viral infectionq dr0(og) pd7us?

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3#
 
单选题 ( 1.0 分) (组内3/6) 切至整卷模式 搜藏此题  
  3. Which of the following is the best descriptio sh.jd;qb(h 9x( zgin/n of the relationship between the virus and host organism?hjh;.s qdgb(n9/z( ix

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4#
 
单选题 ( 1.0 分) (组内4/6) 切至整卷模式 搜藏此题  
  4. Which of the following are structures tha3qdt kc7rw qefgs2:ge (a54o9t all viruses possess?

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5#
 
单选题 ( 1.0 分) (组内5/6) 切至整卷模式 搜藏此题  
  5. Viruses have several forms of m*rzdc6vopo oh j l9.,+jecd oqru9*0+l:qz:genetic information but many structural features in common. What does this suggest in terms of thei vrdlu+:zhz pj.rmd+9j0 9ooooc:* , lq*qc6er evolution?

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6#
 
问答题 ( 1.0 分) (组内6/6) 切至整卷模式 搜藏此题  
7. Compare and contrast the lytic cycle with the lysogenic cyc/ lnahlcq6w, g97.rlu le of viral infection of a host r q.hlnc7l9,wglua6 /cell.
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7#
 
问答题 ( 1.0 分) (组内1/7) 切至整卷模式 搜藏此题  
第 2 题组 (共 7 题 7 分) 当前第1/7题
题组内容描述:
6. The graph shows the known number of Ebola infections worldwide from 1976 to 2015.
(a) Estimate the number oxv4 fdi y( y:xiuhfw8no1/1 b4f cases of Ebola in 1976-1977.
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8#
 
问答题 ( 1.0 分) (组内2/7) 切至整卷模式 搜藏此题  
第 2 题组 (共 7 题 7 分) 当前第2/7题
题组内容描述:
6. The graph shows the known number of Ebola infections worldwide from 1976 to 2015.
(b) The total number of case of Ebola from 2000 to 2009 was 1194. Calculatsjz7(is9 kt tw sz;xu/rj;,.h96qxqre the total nur9r6kj9s(t 7j sqs/u;x tw;z, z .qihxmber of cases that occurred from 1990 to 1999.
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9#
 
问答题 ( 1.0 分) (组内3/7) 切至整卷模式 搜藏此题  
第 2 题组 (共 7 题 7 分) 当前第3/7题
题组内容描述:
6. The graph shows the known number of Ebola infections worldwide from 1976 to 2015.
(c) Calculate the percentage increase in the total 1aa- l8yqffeh, *y,p rnumber of cases from 2000 to 2009 in comparison to 1990 fyq e ph-y,a 18lra,f*to 1999.
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10#
 
问答题 ( 1.0 分) (组内4/7) 切至整卷模式 搜藏此题  
第 2 题组 (共 7 题 7 分) 当前第4/7题
题组内容描述:
6. The graph shows the known number of Ebola infections worldwide from 1976 to 2015.
(d) The Ebola virus first appeared in humans in 1976. Suwy43j)y (cxu vjd*lg3 n7ux;vggest how the virus first appeared g*(yvjdxlvunj3;uw7x y3c)4in the
human population.
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11#
 
问答题 ( 1.0 分) (组内5/7) 切至整卷模式 搜藏此题  
第 2 题组 (共 7 题 7 分) 当前第5/7题
题组内容描述:
6. The graph shows the known number of Ebola infections worldwide from 1976 to 2015.
(e) A vaccine was trialled in 2018 and show8jr.z y 8hl-dan to be effective. It was made widely available from 2020. Suggest why a vaccine again.-8jdryah8l z st a viral infection may prove ineffective in the long term.
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12#
 
问答题 ( 1.0 分) (组内6/7) 切至整卷模式 搜藏此题  
第 2 题组 (共 7 题 7 分) 当前第6/7题
题组内容描述:
6. The graph shows the known number of Ebola infections worldwide from 1976 to 2015.
(f) The genetic material of the Ebola virus is singif:(+l:vm82im zmn; wtc41 mxn )ulbtle strand RNA. List two other 4: mlx ml)+finb1u i;c:mt tzm8vn( w2forms that viral
genetic material may take.
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13#
 
问答题 ( 1.0 分) (组内7/7) 切至整卷模式 搜藏此题  
第 2 题组 (共 7 题 7 分) 当前第7/7题
题组内容描述:
6. The graph shows the known number of Ebola infections worldwide from 1976 to 2015.
(g) The image below shows a particle/66gr*f b 7minepajd9 of the Ebola virus

The virus is approximately 1000 nm in length. Convert this size into µm.
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