Nervous system/overview of neurons/Channels/membrane potential/effect on diffusion

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2014年5月29日 (木) 14:50時点におけるAdmin (トーク | 投稿記録)による版
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POINT!

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potential2diffusion.jpg

When the potassium channels open and potassium ions diffuse OUT of the cell, the intracellular potential becomes negative. Due to this negative potential , some of the diffused ions are pulled back into the cell.

Challenge Quiz

1.

The electric force of the negative intracellular membrane potential moves potassium (K+) from outside to inside. from inside to outside of the cell.

When the potassium (K+) channel is open, the diffusion continues until there is no difference in concentration between inside and outside the cell. true.false