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Home Q & A Board Biology-Related Homework Help Cell Biology
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icandy310 icandy310
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10 years ago
During the relative refractory period, an initial threshold-level depolarization is usually not sufficient to trigger an action potential. Why?
A) Only K+ channels are still open, so Na+ entry is offset by K+ loss.
B) The statement is incorrect; a threshold-level depolarization always triggers an action potential.
C) Some Na+ channels have returned to their resting position and K+ channels are still open, so Na+ entry is offset by K+ loss.
D) Only some Na+ channels have returned to their resting position.
E) Only a few K+ channels have returned to their resting position.
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saviosavio
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10 years ago
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Biology - The only science where multiplication and division mean the same thing.

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icandy310 Author
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#2
10 years ago
THANKS SO MUCH!!
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#3
10 years ago
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Biology - The only science where multiplication and division mean the same thing.
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