The resting membrane potential (ΔV) of a neuron at 25°C is −70 mV. If the free energy change associated with the transport of one Na+ ion from outside to inside is −20.57 kJ/mol and [Na+] outside the cell is 100mM, what is [Na+] inside the cell? Give your answer in mM with up to two decimal points.
Added by Donna P.
Step 1
Step 1: Calculate the value of [Na+] inside the cell using the formula derived from the given information: \[ \Delta G = -RT \ln \left( \frac{[Na^+]_{\text{inside}}}{[Na^+]_{\text{outside}}} \right) \] Show more…
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