A Neuron from an Extraterrestrial Being Has the Intracellular and Extracellular

question 2

Multiple Choice

A neuron from an extraterrestrial being has the intracellular and extracellular sodium and potassium concentrations shown in the table (in millimolars) . During resting conditions, sodium conductance is 100 fold greater compared with potassium conductance. Which of the following (in millivolts) best describes the resting membrane potential in this alien neuron?
(Assume that membrane potential is dictated mainly by sodium and potassium conductances and that the Nernst equation applies.)

• A)+150
• B)+55
• C)0
• D)?55
• E)?150

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Definitions:

Standard Deviation

A metric that calculates the spread or variability of a dataset in comparison to its average, showing the extent to which the data points deviate.

Normally Distributed

Describes a distribution of data that forms a symmetric bell curve, indicating that the data follows a normal distribution pattern.

Standard Deviation

A measure of the amount of variation or dispersion of a set of values, indicating how much the values deviate from the mean.

Mean

The average of a set of values, calculated by summing all the values and then dividing by the count of values.