
Understanding Action Potentials in Neuroscience
Interactive Video
•
Biology, Science
•
10th - 12th Grade
•
Hard

Ethan Morris
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary method by which neurons send signals?
Via electrical chemical signals
By mechanical movements
Using light waves
Through chemical reactions
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which ions are primarily involved in the resting membrane potential of neurons?
Chloride and bicarbonate
Calcium and magnesium
Iron and zinc
Sodium and potassium
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What role do neurotransmitters like glutamate play in neuron excitation?
They inhibit sodium channels
They bind to receptors and open sodium channels
They close potassium channels
They increase the resting membrane potential
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the threshold potential that triggers the opening of voltage-gated sodium channels?
+30 millivolts
0 millivolts
-55 millivolts
-70 millivolts
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
During depolarization, what happens to the charge inside the neuron?
It becomes more negative
It remains unchanged
It becomes more positive
It fluctuates randomly
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What occurs during repolarization of a neuron?
Sodium enters the neuron
Potassium exits the neuron
Chloride exits the neuron
Calcium enters the neuron
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is hyperpolarization in the context of neuron action potentials?
A state where the neuron becomes more positive than at rest
A state where the neuron becomes more negative than at rest
A state where the neuron is inactive
A state where the neuron is at equilibrium
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