Different Concentrations of Ions on Either Side of a Cell $\rarr$

question 54

Short Answer

Different concentrations of ions on either side of a cell membrane constitute a concentration cell, which is described by the Nernst equation given below. What is the electrochemical potential across a membrane when the sodium ion concentration is 0.10 M on one side of the membrane and 0.010 M on the other side, and the temperature is 37°C (body temperature)?
(Given: Na⁺ + e^- $\rarr$ , $E _ { \mathrm { red } } ^ { 0 }$
= -2.71 V; F = 96,485 C; 1 J = 1 C V; R = 8.315 J / (mol K)) $E = E ^ { \circ } - \frac { R T } { n F } \ln Q$

Conduct hypothesis testing using the Wilcoxon Signed-Rank test and conclude based on the test results.

Recognize the conditions under which the Wilcoxon Signed-Rank test is appropriate to use.

Understand the treatment of tied values in the Wilcoxon Signed-Rank test.

Apply the sign test and interpret its results.

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