
Action Potentials and Neuron Function
Interactive Video
•
Biology, Science
•
9th - 12th Grade
•
Medium

Sophia Harris
Used 3+ times
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a nerve impulse primarily composed of?
Movement of proteins
Movement of charged particles
Flow of water
Flow of electrons
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the charge inside a neuron at rest?
Positive 70 millivolts
Negative 70 millivolts
Positive 55 millivolts
Negative 55 millivolts
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What triggers the opening of the voltage-gated sodium channels?
Resting potential
Depolarization
Hyperpolarization
Repolarization
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to the cell's internal charge during depolarization?
It becomes more negative
It becomes more positive
It remains the same
It fluctuates randomly
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the role of the sodium-potassium pump during the refractory period?
To restore resting potential
To trigger another action potential
To repolarize the cell
To depolarize the cell
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many sodium ions are moved out of the cell by the sodium-potassium pump?
Two
Five
Four
Three
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In which direction do action potentials move?
They do not move
From dendrites to axon terminals
In both directions
From axon terminals to dendrites
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