Two Fundamental Concepts About the Ion Channels of a "Resting

question 34

Multiple Choice

Two fundamental concepts about the ion channels of a "resting" neuron are that the channels ________.

• A) are always open, but the concentration gradients of ions frequently change
• B) are always closed, but ions move closer to the channels during excitation
• C) are open or closed depending on their type, and are specific as to which ion can traverse them
• D) open in response to stimuli, and then close simultaneously, in unison

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Definitions:

Coefficient of Determination

A statistical metric that calculates the percentage of variability in the outcome variable that can be predicted from one or more predictor variables.

Linear Relationship

A relationship between two variables where the change in one variable is directly proportional to the change in another variable.

Variables

Elements, characteristics, or factors that can change and affect the outcome of a study or experiment, often measured, manipulated, or controlled.

Independent Variable

An independent variable is a variable that is manipulated or categorically separated in an experiment to observe its effect on a dependent variable.