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习题练习:Interaction & Interdependence C.5 Neural Signaling



 作者: admin   总分: 24分  得分: _____________

答题人: 匿名未登录  开始时间: 24年01月13日 22:46  切换到: 整卷模式

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1#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What happens if the threshold potential is not reache*0lm/y(guoyxrs 3 ma,d ?

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2#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  At what membrane potential do voltage-gated sodium chayl+ 4sn/erx36(wn ehjagv+d0 nnels open?

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The diagram shows a neu+s8 znxc(ijb3tba 6as 6d3xo (ron.
Which arrow indicates a dendrite?


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4#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  How do neonicotinoid pestici* )o5gcm2lnpgry 2 -ghdes work?

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5#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The diagram shows an action potentnw;9- ij p/pakial.

What is happening at point X?

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6#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which is the correct :vtdg zi:*; 17pl2djbqxi8hc definition of saltatory conduction?

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7#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
Neuronal cells have special membrane properties that allow their axonstfka/ -hx6ujsjfl38qp.,) z k to propagate action potential from one cell to another. The diagram below shows a portion of an axonal plasma membranefjj-zfu s/q) pt 6,k8xk.h3al.


1.(1)State the role of a sodium-potassium pump in axon.
(2)Describe the action of the sodium-potassium pump.
2.Distinguish between simple diffusion, facilitated diffusion and active transport.
3.Compare and contrast sodium-potassium pumps and potassium channels.
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8#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What causes the exocytosis of neu8 d3mi0o .eluwrotransmitters at the presynaptic membrane?
I. Depolarisation of the postsynaptic membrane
II. Depolarisation of the presynaptic membrane
III. The diffusion of calcium ions

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9#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What are the main factors that maintain a neuron’s resting pote9nh4xws.gxkrs8 8 n7qntial?

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10#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is not a function of the myelin sheath?

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11#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
Explain how the resting potential is maintained in a nu90nc j(u+gm peuron.
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12#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
The diagram represents a sys .ywxp*hr/k- 5g mp x5yoy:e*naptic cleft between two neurons in an insect's nervous system**gs kpm/ ywx5-:e phyox.r 5y.



Gardeners use pesticides that contain neonicotinoids to kill pests. Label with the letter X where neonicotinoids would bind.
1.(1)Explain how neonicotinoids work on insects.
(2)Suggest what the effect would be on synaptic transmission in cholinergic synapses if gardeners used (3)pesticides that were broken down by acetylcholinesterase.
2.Explain why neonicotinoid containing pesticides are less toxic to mammals than insects
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13#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
1.Draw and label the str /15da;z esq2:;v chkma wump/ucture of a typical neuron.
2.Explain why myelination is essential for the rapid transmission of impulses.
3,Explain the importance of positive ions in the generation and propagation of an action potential.
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14#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
Neonicotinoids are synthetic mtokj d5hd62(compounds that are widely used as pesticides. However, there are concerns about their effect on honey bees and other pollinating insects. The table below shows the results from a study where honey bees (Apis mellifera carnica) were treated with non-lethal doses of two neonicotinoids, Imidacloprid and Clothianidin, and the effect it had on their homing instinct (ability t6ktddoh 5mj (2o fly back to their hive).

1.Describe the mode of action of pesticides containing neonicotinoids on cholinergic synapses in insects.
2.Using the data, outline the effect of the neonicotinoids on honey bees.
3.Calculate the percentage increase between the control and those treated with 0.6 μM of Imidacloprid which did not arrive back at their hive.
4.State what the dependent variable is in this study.
5.(1)Based on the data, predict the effect that exposing honey bees to neonicotinoids will have on the fitness of the honey bee colony.
(2)Explain your answer to part (i).
6.The researchers concluded that neonicotinoids should not be used as pesticides due to their unintended effects on honey bees. Evaluate whether this data supports their conclusion.
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15#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The graph below shows me uyu)k,vg+ +t 3ejs 3y8-7jsppfa *ciwmbrane voltage over time during an action potential. Which letter represents the segment of the action potential when voltage-gated sodium channels are open and voltage-gated potassium3j3e )k t+v j,pyya*iu8up7s+ fwcs -g channels are closed?



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16#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which two features are more abundant per unit length f txmcduo/ ,i ac3i26b*(c3otin a non-myelinated neuron than in a myelinated neuro3um2ct co,/idi3f *bxc ta6(o n?

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17#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which of the following is a/mw/c8zns8 v 1wp lzc t+ps6 9al1hos:7are correct description(s) of the relative speed impulses 9cv:wn/a1 pzt7l1 sh s88csl mzw+op6are conducted at?
I. As the diameter of axons increases, the speed at which impulses are conducted increases.
II. There is a negative correlation between animal size and the speed at which impulses are conducted.
III. Saltatory conduction in myelinated neurons is slower than the speed at which impulses are conducted in non-myelinated neurons.

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18#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The diagram shows a process that occurs in the membranes4 uqum (6x;vfe of neurons during a stage xf( e4m6qu; uvof the action potential. What process does the diagram depict?



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19#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The image shows neurons that are found in dog brains. What does letter X indicahi:dpm1glmitl: atm)tdq;a3 9z +gsdr)(2r .te3 dld2mg;igp ztt rs1m):9haqa (mlit d):.r +?



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20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The diagram shows two neurons of equal tu28k5eriwk04,0kw1xsod+ xmceh. d length and diameter. Which neuron will transfer an electrical impulseec0+5wsoxwxuk.t, 4 khdek8i 0dr 2m 1 faster?



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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which triggers the release of neurotransmitters from the presynaptic;ctftho1 f i)8 membrane?

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which mode of transport do neurotransmitters use to travel across a 7z+ssh8tk;iwyw 6aw /synapse?

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23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which statement explains why a nerve impulse is ecgbtht (5zi2vk 0*r:jlectrical?

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24#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
1.Explain why a restingl u.+i88 wutmj potential is negative.
2.Explain how the structure of a neuron is adapted to its function.
3.Describe the events that occur to propagate an action potential within a neuron and between two neurons.
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