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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, titin, in muscle contraction and re3sq/qy5ufm n /laxation/m qufqsy n/35?
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 au4p j/ e: d (hobvl6;j85wdxtvs 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 each component of a synovial joint?ga52.0 uk gp lwiv:,cgu2 .vpgwg5l gc,0a k:i



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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 that alok6n +g vde25z/se,7hzfxdo- )gj :aolow them to live in wat6svo,n k5z7fa- zo xhd:d2) oge /+ejger.
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 diagra y7ug,q8dz yf5j/3ke wm:
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 estimm-1ntbk;1lkjiw w+uwajy)2z0 lx x 9*ate the actual length of this sarcomere. Show your working ax2m; wjbw nta- +1uwi*k)jx 1llk90zynd 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 semimembranosus muscle is found in the human thigh. When it contracts/rky-t8 zr 8diw m(d+rb+oh3a 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 µ (z+t 8a3wm orki/8h+rdb yd-rm.
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 upwak0 bq/1hn; 8rq 1h-mzq jl*aosu5+oycrds then downwards dir+/q mqc -b8ynjhu oo1h*r1zl5s 0q; kaections 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 neuromuscular junction and o,i8;.5gv vnba 8uadz25y mnpmuscle fibres in 5u.n mp, iy 5d88av2nobgza ;vskeletal muscle contraction.
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