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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 contractij63y l tqu8+xion and rel6i8yu+3jxl q taxation?
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 pairs f98jjkb;-1zncv/ sc s 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 of a synoviaj gz( zn-*iqjeu)+j-t9qi 8 okl joint? jj-q *9 zzei gq+ji8k-u) no(t



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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 ai:60g7 q;a.efzip o wk ptab(3qr but have adaptations that allow them to live in water. q3pafbpoqi. 0a:e6;7wk z( gt
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 followi4 q9kgzd (+tjmng 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 lv e*a m2jqbs k.9wzonw+4n2s(ength of this sarcomere. Show your working and includ(s 49mb2s* njnw azq.+k2oew ve 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 human thigh. When it contr -c nq,l5k.hnmo5g2pa d9a/g:fpvrm ; acts it can extend the knee joint and flex the hip joint. It has a maximum sarcomere length of 4.4 µm and a dg arfmca;g./l n o:5, 9p-qk nm5v2phminimum 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 / q3ps4y5j nqtthen downwards directions for inhalation and ex5tq/qyspn3j 4halation.
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 neuromuscular junction and m5ztwtd)fha92 l (e3fluscle fibres in skeletal muscle cot3awfl tled 9(5 hfz2)ntraction.
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