WorksheetsNervous transmission
Total questions: 7
Worksheet time: 4mins
Name
Class
Date
1.
All or nothing principle means
a)
When stimulus reaches a neuron an action potential is generated.
b)
A stimulus has to reach the threshold to generate an action potential.
c)
Some neurons transmit the stimulus so slowly that no action potential is generated.
d)
All neurons picks up all the stimulus which reach them and pass on the message further.
2.
Depolarisation is caused by
a)
Opening of potassium channels letting , potassium in.
b)
Opening of sodium channels, letting sodium in.
c)
Opening of calcium channels to let calcium in.
d)
There are lot of ions responsible for the neuron to get depolarised.
3.
Membrane potential is caused by
a)
The stimulus.
b)
The response.
c)
A Reflex action.
d)
The distribution of ions.
4.
Resting potential is
a)
When the neuron is at rest.
b)
When all the sodium channels are open.
c)
When all the potassium channels are open.
d)
When a neuron is not generating an action potential.
5.
Sodium potassium pump is action all the time as action potential is generated.
a)
False
b)
True
6.
Refractory period is when a neuron is waiting to pick up the next signal.
a)
True
b)
False
7.
As sodium and potassium ions are so small so they can easily pass through the cell membrane to create the action potential.
a)
True
b)
False
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