
Action Potenial
Authored by Angela Brooder
Science, Biology
10th Grade - University
Used 40+ times

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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the charge on the outside of the axon during the resting membrane potential?
+
-
neutral
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Where is the concentration of sodium ions higher during the resting membrane potential?
Outside
Inside
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What structure is used to maintain the resting membrane potential?
Na/K pump
leakage channels
voltage gated channels
secretory vessicles
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
During an action potential, _____ ions flow INTO the axon and _____ ions flow out of the axon.
Na, K
K, Na
Na, Cl
Cl, Na
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
During repolarization _____ ions flow ______ the axon
K, into
K, out of
Na, into
Na, out of
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What term describes the movement of excess K ions such that the membrane potential becomes more negative than -70Mv?
hyperpolarization
repolarization
subthreshold
threshold
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What happens if not enough Na+ enters the axon to reach the threshold potential?
nothing
a weak impulse
a slow impulse
a full impulse
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