Nervous system/overview of neurons/Channels/effect of intracellular potential on diffusion/Equilibrium potential copy
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POINT!
| The outward movement of potassium (K+) by diffusion is the same compared to the inward movement of potassium (K+) by equilibrium potential. |
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The potassium channels open, potassium ions diffuse OUT of the cell, the intracellular potential becomes negative, and because of this negative potential, some of the diffused ions are pulled back into the cell. When the outward movement by diffusion and inward movement by the electric force are balanced, the intracellular potential is called the‘equilibrium potential’.
The equilibrium potential for potassium is negative.
Challenge Quiz
1.
The outward movement of potassium (K+) by diffusion is larger the same smaller compared to the inward movement of potassium (K+) by equilibrium potential.
2.
The equilibrium potential by potassium (K+) channel is negative positive .