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Home Q & A Board Biology-Related Homework Help General Biology
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Rahpoo Rahpoo
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8 years ago
are BOTH Na+ and K+ voltage gated channels open at any point during the action potential?
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ehd123ehd123
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#1
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8 years ago Edited: 8 years ago, ehd123
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This verified answer contains over 200 words.
B.Sc in Biology
M.Sc Neuroscience
PhD. Candidate in Neuroscience

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Rahpoo Author
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#2
8 years ago
Quote from: ehd123 (8 years ago)
Hello there

This is a tricky question.. If you try imagining the action potential's depolarization and hyperpolarization phases, it may seem that no they're not. But, they do, although it is a very brief moment. Also, there are slow and fast channels of both involved.
It could not be possible that both are strictly shut or open at the same time. While one is closing, the other would be slowly opening and vice versa.
I hope this clarifies a little. Slight Smile
Post Merge: 8 years ago

I forgot to mention, the action potential all in all lasts less than one second. So imagine how brief the overlapping phases of Na and K  opening and closing would be  Face with Open Mouth Slight Smile

Thank you so much!
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#3
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8 years ago
You are very welcome  Smiling Face with Halo
B.Sc in Biology
M.Sc Neuroscience
PhD. Candidate in Neuroscience
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