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习题练习:HL Topic B3.3 Muscle and motility



 作者: admin发布日期: 2025-01-27 11:07   总分: 9分  得分: _____________

答题人: 匿名未登录  开始时间: 25年01月27日 11:07  切换到: 整卷模式

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1#
 
单选题 ( 1.0 分) (组内1/4) 切至整卷模式 搜藏此题  
第 1 题组 (共 4 题 4 分)
  1. What are the roles of the giant protein,tbd4i5g j ls7,0u jzs6 titin, in muscle contraction and relaxatl46z b57ssdt0u j,ijg ion?
I. It plays a role in elastic recoil of sarcomeres.
II. It binds to myosin in sarcomeres.
III. It resists overstretching of muscle fibres.
IV. It resists overcontraction of muscle fibres.

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2#
 
单选题 ( 1.0 分) (组内2/4) 切至整卷模式 搜藏此题  
  2. Why do limb muscles act as antagq fcqb.1 i*s;ionistic pairs to move a limb?

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3#
 
单选题 ( 1.0 分) (组内3/4) 切至整卷模式 搜藏此题  
  3. Which row correctly shows the funcna(uq y3*gr9:vk /mcy tion of each component of a synovial joint?(gyk:qavn*y3c r/um9



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4#
 
问答题 ( 1.0 分) (组内4/4) 切至整卷模式 搜藏此题  
4. Marine mammals breathe air but have adaptations thatx9 kext hfse/). 7r9ox allow them to live in wate9)/hrxx9xek ofs. te7r.
List three adaptations of marine mammals to aquatic life.
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5#
 
问答题 ( 1.0 分) (组内1/3) 切至整卷模式 搜藏此题  
第 2 题组 (共 3 题 3 分) 当前第1/3题
题组内容描述:
5. The image shows a sarcomere under the electron microscope.
(a) Label the following ossg-k/t5oklc o+*u4cn the diagram:
A – An area containing only actin filaments.
B - An area containing both actin and myosin filaments.
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6#
 
问答题 ( 1.0 分) (组内2/3) 切至整卷模式 搜藏此题  
第 2 题组 (共 3 题 3 分) 当前第2/3题
题组内容描述:
5. The image shows a sarcomere under the electron microscope.
(b) Use the scale bar to estimate the actual length of this sarco *8(9yl (l/ e4svazyv dskwcga3v86yxmere. Show your working and a9dss4 laz ke x6*y(/3 8wvlvc(vy gy8include units.
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7#
 
问答题 ( 1.0 分) (组内3/3) 切至整卷模式 搜藏此题  
第 2 题组 (共 3 题 3 分) 当前第3/3题
题组内容描述:
5. The image shows a sarcomere under the electron microscope.
(c) The semimembranosus muscle is found in the huma0sc : a v67h-3c*b;gfta/ntng uzmkk8n thigh. When it contracts it can extend the knee joint and flex the hip joint. It has a maximum sarcomere length of 4.4 µm and a minimum of 1.5 µm. 8bt/namu ksv3:f7cc-g; nka0h t*6z g
Calculate the percentage change in sarcomere length for this muscle when it contracts from 4.4µm to 1.5µm.
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8#
 
问答题 ( 1.0 分) (组内1/2) 切至整卷模式 搜藏此题  
第 3 题组 (共 2 题 2 分)
6. Ventilation in mammals involveh 2i ol:5vgd*qs the movement of the rib cage upwards then downwards directions for inhalation al*iq2hdg :5 vond exhalation.
Discuss how the external and internal intercostal muscles act as an antagonistic pair of muscles to cause these movements.
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9#
 
问答题 ( 1.0 分) (组内2/2) 切至整卷模式 搜藏此题  
7. Outline the role of the motor neuxg/cb f wi,+y+v7ho2 pron, the neuromuscular junction and muscle fibrgx7 fypi+h2+ w,/vboces in skeletal muscle contraction.
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