Membrane Potential

question 40

Multiple Choice

Membrane potential

• A) refers to a separation of charges across the membrane or to a difference in the relative number of + and - charges in the ECF and ICF.
• B) is measured in units of millivolts with the sign always designating the charge on the outside.
• C) is less at the equilibrium potential for K⁺ than at resting membrane potential.
• D) cannot be measured easily.
• E) all of these answers.

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Definitions:

Test Statistic

A calculated value used in statistical testing to determine whether to reject the null hypothesis.

P-Value

The probability of observing test results at least as extreme as the results actually observed, under the assumption that the null hypothesis is correct.

Degrees of Freedom

The number of independent values or quantities that can vary in the calculation without violating any constraint.

Contingency Table

A tabular method used to summarize the relationship between several categorical variables, showing distribution of frequencies.