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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: 游客未登录  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, titin, in muscle contraction and re d8fzc)7 qf9yhlaxat7h yzf)d98f qcion?
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 antagonistic pair;v55 dnf7c uwrs 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 each component c/o9bgo.ootwxp yw4t1u84u 1 of a synovial joint?gtoobw1/wo 8x 4t uy4c1.9 pou



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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 has.-4eg -/lf 9u5-nzpogg8i 4imb,d bou4xwzu ve adaptations that allow them to live in watex8g.u l/og 9wzm4f biu e,-s bo-n4d -5igu4zpr.
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 on the diagramee;e6gs,s5ku4etd z ,d bd.)) rkn4en :
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 c*e)vd uy-n tqbi8-c- length of this sarcomere. Show your working and include units v u-dbqnct ey-)-*ci8.
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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 human an p1 60l:t(pv 6eou xqwu3ek0thigh. 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 0 k0npu6 ve1aptqwe6o3 l:x u(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 rqq i393koslb m1t(4t5w3c yanib cage upwards then downwards directions for inhalation annot(3a9l3ism45t y3cqb kw1 qd 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 neuromusculp* k0wc3 pvl,ear junction and muscle fibres in skeletal muscle contr 0wckv, pl3p*eaction.
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