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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: 游客未登录  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 hah4xrn -4jj0y 8suvf d,ve in common with living organisj-4fj 4xvrun8s, 0hdyms?

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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 treatm 0oyowgmpg/wu*vws g 4,3-sv 9ent of human viral infect*3sg,g-/ u s9wm w yop0v4govwions?

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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 descriptc:2wd;m lqes; ion of the relationship between the virus ;:wsm d2qec l;and host organism?

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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 af gnn 7we2(k y/ i1z:/fr0*4puoky:ecyzz 1xf re structures that 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 genetic information but many strk6ieowr3)tt n v1m/8euctural features in common. What does this suggest in terms of their evmo 86/1eitnk)t3er w volution?

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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 cycle of viral cwxc+t)as6o2qf;h yqxw.,.t infection of a2+q cow.h ,)sytcf q;6 t.xxwa host 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 of cases of Ebola in 1976-197q*x+ddebm 80 c7.
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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 5a).(yncz (i6e khriih0j /vrto 2009 was 1194. Calculate the total numbhr)i(kj.6a0i c( hn evyr/5izer 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 number of case).hkqi y)bf i4s from 2000 to 20fyi.)h) 4k iqb09 in comparison to 1990 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 ap xjqxu9y+ isv( q4z71hf u7q*zpeared in humans in 1976. Suggest how the virus first4i*9x v7jquxqfq1+yzh(7s u z appeared in 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 showx;mgoystz 2 y( h9(xkhyd0l5 ,n to be effective. It was made widely available from 2020. Suggest why a vaccine against a viral infection may prove ,0hhz 9glt 25xsydx( oy my(k;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 single strand RNA. Li.k9 t1tvcfl qa2 +k+udst two other forms 9ufdtq +lck k+1. va2tthat 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 partv5,ildrp a e0phv.c raafd7s1a( a 4*4icle of the Ebola virus

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