Use the Information in the Table to Answer the Question

question 46

Multiple Choice

Use the information in the table to answer the question.
$\begin{array}{|l|l|l|}\hline\text { Ion } & \begin{array}{l}\hline\text { Extracellular concentration } \\(\mathrm{mM}) \end{array} & \begin{array}{l}\hline \text { Intracellular concentration } \\(\mathrm{mM}) \end{array} \\\hline \mathrm{Na}^{+} & 300 & 50 \\\hline \mathrm{K}^{+} & 40 & 350 \\\hline\end{array}$

Calculate the equilibrium potential for sodium. Assume a temperature of 37°C.

• A) +48.2 mV
• B) 0.0 mV
• C) -58.4 mV
• D) -80.0 mV

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