Use the following to answer questions:
Refer to the graph below, showing the course of an action potential.
-In the action potential shown, which of the following cellular events is mispaired with the position at which it occurs?
A) Position 1 - Voltage-gated sodium channels are closed
B) Position 2 - Activation gates of some sodium channels open
C) Position 3 - Voltage-gated potassium channels close
D) Position 4 - Inactivation gates of sodium channels close
E) Position 5 - Inactivation gates of sodium channels reopen

Question

Use the following to answer questions:
Refer to the graph below, showing the course of an action potential. 
-In the action potential shown, which of the following cellular events is mispaired with the position at which it occurs?
A) Position 1 - Voltage-gated sodium channels are closed 
B) Position 2 - Activation gates of some sodium channels open 
C) Position 3 - Voltage-gated potassium channels close 
D) Position 4 - Inactivation gates of sodium channels close 
E) Position 5 - Inactivation gates of sodium channels reopen

Quizplus · Accepted Answer

At position 3, voltage-gated potassium channels actually open, not close.

Use the Following to Answer Questions