IP The Sodium Pump Living cells actively \"pump positive sodium ions (Na) from i

Question

IP The Sodium Pump Living cells actively "pump positive sodium ions (Na) from inside the cell to outside the cell. This process is referred to as pumping because work must be done on the ions to move them from the negatively charged inner surface of the membrane to the positively charged outer surface. PartA Given that the electric potential is 6.7x102 V higher outside the cell than inside the cell, and that the cell membrane is 0.10 um thick, calculate the work that must be done (in joules) to move one sodium ion from inside the cell to outside. Express your answer using two significant figures. Submit

Explanation / Answer

work done = chnage in electric potential energy

W = V/r

= 6.7*10^-2 / 0.1*10^-6

= 6.7*10^5 J

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