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Which sequence of ion movements describes the action potential?

waelhammad
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2022-10-19
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Which sequence of ion movements describes the action potential?

  1. Na + move out of cell then K + move in
  2. K + move in to cell then Na + move out
  3. K + move out of cell then Na + move in
  4. Na + move into cell then K + move out
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waelhammad
2022-10-19
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D: Sodium ions are in high concentration outside the cell (and in low concentration inside the cell). The correct sequence is Na in followed by K out. 

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