- Most cells have an electrical
potential across the cell membrane
- Thus the cell acts like a small
electrical battery with the negative pole inside.
- This potential is produced due to
three important characteristics
|
| |
1. |
The presence
of fixed (non-diffusible) anions inside the cell |
| |
2. |
The preferential
permeability of the cell membrane to potassium |
| |
3. |
The sodium/potassium pump |
| |
|
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