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习题练习:HL Topic A2.1 Origin of cells



 作者: admin发布日期: 2025-01-24 21:48   总分: 8分  得分: _____________

答题人: 匿名未登录  开始时间: 25年01月24日 10:38  切换到: 整卷模式

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1#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  1. Why are fatty acids or phosphol pb,kba gie-c 7kcd r)0j,/u.bipids important in the formation of cells and their componentscub)p.i0 eckbbr 7/, -adg,jk?

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2#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  2. What is the acronym of the organism from which Homo sapiens is beli4g:6f2kiznj h+5f vcaeved to have originally evolved?6zfa: k 4jgfnc52v+hi

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  3. Which of the following d f; xf;ml*cp9sn ;b1ini+un8ac+k +xoescribes the conditions on early, pre-biotic Earth?


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4#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
4. Viruses are said to be non-livingv0fvfl+gdt2a)k4m+0fdmq 7b.List two reasons that viruses cannot be considerea7f0 +vgbddff)kl 0tv2m 4m +qd as living organisms.
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5#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
5. Explain why RNA, rather than DNA, likely to be the .*y54jlnipdy first genetic material in living org4 p5ljnyy* di.anisms.
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6#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
6. The Miller-Urey experiment produced organic x0fd18 6llfjx9 pb .grmolecules in an atmosphere that, in 1952, was thought to have been like the atmosphere on earth prior to the evolution of life. In which way was the experiment’s model atmosphere different from today’s scientific understanding of the atmosphere at the origin of life on earth?r0l xfg.bxp6j ld9f18
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7#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
7. Explain why the conditions o3aw:y8:np tkgn Earth today make the spontaneous formation of organic carbon compounds less like:g:tw k38 ynpaly compared to the conditions on Earth at the time of the origin of life.
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8#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
8. List the essential features that the first cells must ts/mqaejx :)7;ah2 ig have possessed to be able to livimt/e;jq x) a27ga s:he and evolve into the life forms that followed.
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