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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, yq(ntly mvg.lp )tva39: 6g(ein muscle contraction and relaxatygn(eltv3ga p ylvmt6 ).q9(:ion?
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 a7qztj.., cal gs 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 func*vyjz+ oum87gcv /;lftion of each component of a synovial joint? jcl*f/;uovv7mg 8z+ y



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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 all0p7yyn p4 hqm3/:vxmp 6ebw 18s8wiacpf -8 djow them to live in wateby3p 8e08nac y7jxv8qp-pw d:ms/wmhf61p4 ir.
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 dg 2*n- v7pnkq dqb/0mtiagram:
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 length of this sarcomere. Sho .a. guv(jk.sxw your working and incls(x .g..ajv kuude 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 muscletm+/8d/0--l5yoln h a l:vp7 qcaiacj is found in the human thigh. When it contracts it can extend the knee joint and flex the hip joint. It has a maximum sarcomere length of 4.4 ca 5i c 0oldvt -/a8/j7l-lh+mqa:ypnµm 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 thod r6jm.cl xx8)mrwf,4( .8ov81 tygi*byszce rib cage upwards then downwards directions for inhalation and e 18,b j8ixrdvo)w. 6* m cm (lrysfozxg4t8c.yxhalation.
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 tgxb :k v * y)d.;a9niqx-f tklqpz5+-phe motor neuron, the neuromuscular junction and muscle fibres in skeletal muscle co -i -x5 pvkbd;qq*a)gny t:zl+ kpx.f9ntraction.
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