The Nervous System Crash Course Part 2 (Action Potential)

Quiz
•
Science
•
7th Grade
•
Medium
Standards-aligned

Sarah Malec
Used 6+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the basic unit of communication in the nervous system?
Neuron
Muscle cell
Blood cell
Axon
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the term used to describe the electrical impulse that neurons fire?
Resistance
Current
Voltage
Action potential
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What can neurons vary to communicate different messages?
Temperature of the impulse
Size of the neuron
Color of the signal
Frequency of pulses
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the resting membrane potential of a neuron?
+40 millivolts
-70 millivolts
0 millivolts
-55 millivolts
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What type of channels open at certain membrane potentials?
Voltage-gated channels
Thermally gated channels
Mechanically gated channels
Ligand-gated channels
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the role of the sodium-potassium pump?
Maintains the electrochemical gradient
Generates action potentials
Absorbs nutrients
Produces neurotransmitters
Tags
NGSS.HS-LS1-3
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens when a neuron's membrane potential reaches the threshold of -55 mV?
The neuron dies
The neuron divides
The neuron goes to sleep
An action potential is triggered
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