WorksheetsBBI 1
Total questions: 10
Worksheet time: 8mins
Name
Class
Date
1.
Part of a neuron that receives information from other neurons
a)
axon
b)
dendrites
c)
myelin sheath
d)
synapse
2.
What number(s) on the graph represents the Resting Potential?
a)
1 and 2
b)
1 and 5
c)
2 and 3
d)
3 and 4
3.
When a neuron is resting, the inside of the axon has a ____________ charge.
a)
-55 mV
b)
-70 mV
c)
40 mV
d)
-75 mV
4.
Which ions are involved in the electrical nerve impulse?
a)
Iodine and Sodium
b)
Potassium and Sodium
c)
Iron and Sodium
d)
Calcium and Iodine
5.
What number on the graph represents the Depolarization phase?
a)
1
b)
2
c)
3
d)
4
6.
What number on the graph represents the Depolarization phase?
a)
1
b)
2
c)
3
d)
4
7.
Why is -55 mV a significant number?
a)
This is the largest charge achieved during an action potential
b)
This is the threshold required to generate an action potential
c)
This is the resting charge of a neuron
d)
This is the charge when all the sodium is inside the cell
8.
At what stage does Potassium move outside the neuron, and Sodium stop moving inside the neuron?
a)
Depolarizarion
b)
Repolarization
c)
Hyperpolarization
d)
Resting Potential
9.
Which ions are involved in an action potential?
a)
Na; Cl
b)
Na; K
c)
K; Cl
d)
Na; Ca
10.
When a neuron is resting, the inside of the axon has a ____________ charge.
a)
positive
b)
negative
100 %
