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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 pfjaz19 v t8fr1rotein, titin, in muscle contraction and relaxation?89 a11vfrjt zf
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 muscle1 a ea5,uofua( 5hiwy,s act as antagonistic 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 function of ea-j. ,kt qk+9w piqnbhuz+ 1k9xch component of a synovial joint? q9ikukht b x 9,nk-wpzjq+1. +



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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 thatffb l :m4yy/t0,o a gju1id5d; allow them to live in waty04dfo:/ 1lu i,;ma5tyfbjdger.
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 followil38ya/p4 n1su inhuv :ng on 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 sarcomere. ajh0fnr)zu4 (m7 8tki+5b lfvShow your wou7 4imvlbk0ha f)+(fr nj5tz8rking and include 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 semimembranorsj:z, zudai.;xf- 6r.w kd i81xdxq 2sus muscle is found in the human thigh. When it contracts it can extend the knee join fri ,dz1dq d.:8;k6s-axzx2rw i.uxjt and flex the hip joint. It has a maximum sarcomere length of 4.4 µm and a minimum of 1.5 µm.
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 involves the movement of the rib cage upwards then dvyd3 g 419d,arw5utcbownwards1 rc3t,dd4b5wvya9 gu directions for inhalation and 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 neuron, the n.a kg/yi ;pc*4rmcv9v v.p.fyeuromuscular junction and muscle fibres in skeletal muscle com* vgkacyvp/p .i.ycv 4.fr9;ntraction.
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