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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 cont,p(7bp fggk y1h, *eanraction and relaxatiafe, gg1 (p7phk*byn, on?
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 antagonbk j.g pyt/x*i- g6mm/istic 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 0m j5egv*j6gr a synovial joint?5g0 e m*gjrj6v



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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 allow them to live inc)h5 dp st1o7qjvu: g* water. )1pg:jdc* t57vo uhqs
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 diagram:(qp.pcttf 3q::y c +ik
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;idp w wj/ 8-d(rhjf-/a jkvt6 to estimate the actual length of this sarcomere. Show your working and include d-r/pw-jd;vh 6 jw8 tk(ajif /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 contr2u ys vkb3xf+uv 5*v*blb6(lqacts it can extend the knee joint and flex the hip joint. It has a maximum sarcomere length of 4.4 µm and a mlv(+ b**v uyul q62 3s5vxbbkfinimum 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 invqu2ga5zit(w 7m6d 9dnk,srw:olves the movement of the rib cage upwards then downwazq5k6 (d :s7 wmg9a,2d rntuwirds 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+tx l7q365iqs* ie bio) m7xgt, the neuromuscular junction and muscle fibres in skeletal muscle contractii65 +qixgq3 o)m77 exltis*bton.
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总分:9分 及格:5.4分 时间:不限时
未答题: 已答题:0 答错题:
当前第 题,此次习题练习共有 9 道题

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