Raising the Potassium Ion Concentration in the Extracellular Fluid Surrounding

question 25

Multiple Choice

Raising the potassium ion concentration in the extracellular fluid surrounding a nerve cell will have which effect?

• A) depolarize it
• B) hyperpolarize it
• C) increase the magnitude of the potassium equilibrium potential
• D) decrease the magnitude of the potassium equilibrium potential
• E) both A and D

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Definitions:

Durbin-Watson Statistic

A measure used in statistics to detect the presence of autocorrelation at lag 1 in the residuals from a regression analysis.

Residual

The difference between an observed value and the estimated value in a regression analysis.

Multicollinearity

A situation in regression analysis in which predictor variables are highly correlated, making it difficult to isolate the individual effects of the predictors.

Correlation Matrix

A table showing the correlation coefficients between several variables, which can indicate the strength and direction of the relationship between pairs of variables.