Diffusion of Ions Across Membranes Through Specific Ion Channels Is

question 27

Multiple Choice

Diffusion of ions across membranes through specific ion channels is driven by ________.

• A) active transport pumps
• B) ion concentration gradients only
• C) electrical gradients only
• D) ion electrochemical gradients

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Definitions:

Sample Statistic

A numerical measure that describes an aspect of a sample of the population data.

Population Parameter

A numerical value that describes a characteristic of the entire population.

Confidence Level

The degree of certainty that a parameter lies within a specified range.

Confidence Interval

A set of values from sample statistics expected to cover the value of a not-yet-known population parameter.