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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 c3 y,hz5 c4p7pyy77ko zennj+wontraction and relaxatiok4z3 woy7c hj5,ypz yp7ne+7nn?
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 tyj s 74-t+ig+xse0coix2f5sao 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 *a -8ovhmt g3)a7shkm of each component of a synovial joint? sghoh)8 *-mmt3av ka7



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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 ljub;t n /) e4-,xgqtfax)p df mq23y-to live in wate/apx2f eq-b;t))qyg l j td,fmx-nu 34r.
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 d;u b0z;iu c3.bqr.rmq iagram:
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 estimaty 3pdpw )+ycfb4 y4g ijg; r4nb(3u;qce the actual length of this sarcomere. Show yourb3b 3ydy)gp4qcpycu4 i( ;f4+r;wngj working 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 semimembranosus muscle is found in the human thigh. When itp6z kjqwl378h.e0) h qx)o cub contracts it can extend the knee joint and flex the hip joint. It ha)klxqu8z )7o6hpjb 03.hqewcs 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 f y9f3zwc jy:vmn-kzf9 u.x )1downw 9w3z-xy:v9n.y ck ) zmfu1ffjards 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 neuromusculy5y/ )b7kwk:pr1 v)npeua 2 pmar junction and muscle fibres in skepp2 wv)mn5k71kye p a)b/r: yuletal muscle contraction.
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