Action Potential Flashcard
Flashcard
•
10th - 12th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
Which ions are involved in an action potential? Options: Na; Cl, Na; K, K; Cl, Na; Ca
Back
Na; K
2.
FLASHCARD QUESTION
Front
What is the normal resting potential of a neuron cell membrane?
Back
-70mV
3.
FLASHCARD QUESTION
Front
Which is the correct order of events in depolarisation then repolarisation? Sodium channels close, potassium channels open, Sodium channels open, potassium channels open, Sodium channels open, potassium channels close, Potassium channels open, sodium channels open
Back
Sodium channels open, potassium channels open.
4.
FLASHCARD QUESTION
Front
At which point on the diagram does depolarisation of the axon occur? Options: A, B, C, D
Back
B
5.
FLASHCARD QUESTION
Front
What is the insulating membrane that surrounds parts of the axon that helps to speed up action potential?
Back
Myelin Sheath
6.
FLASHCARD QUESTION
Front
When a neuron is resting, the inside of the axon has a ____________ charge.
Back
negative
7.
FLASHCARD QUESTION
Front
A membrane potential becoming less negative is called
Back
depolarization
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