Final answer:
The normal polarity on each side of the semipermeable membrane is negative on the inside and positive on the outside of the cell.
Step-by-step explanation:
The normal polarity on each side of the semipermeable membrane while the cell is at rest is a negative charge on the inside of the cell and a positive charge on the outside of the cell. This is due to the concentration differences of ions across the membrane. The exterior of the membrane has a higher concentration of positive ions, while the interior has a higher concentration of negative ions.