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Question: 1 if the membrane potential of sodium ions in a...

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1. If the membrane potential of sodium ions in a cell is equal to +60 mV, what is its membrane potential for chloride ions if they are found in the exact same concentrations as sodium? Give your answer in mV.

2.

Given a cell membrane with the following parameters-

Ion Extracellular concentration (mmol/L) Intracellular concentration (mmol/L) Permeability
K+ 10 150 1
Na+ 140 15 0.04
Cl- 100 7 0.45

calculate the membrane potential of the cell in mV. (Round your answer to the nearest hundredth.) Assume standard temperature and pressure.

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