How Does the Addition of 4-Aminopyridine (4-AP) to the Bathing

question 47

Multiple Choice

How does the addition of 4-aminopyridine (4-AP) to the bathing solution around the neuromuscular junction affect transmitter release?

• A) 4-AP blocks sodium channels, preventing action potentials and reducing transmitter release.
• B) 4-AP blocks potassium channels, prolonging the duration of action potentials and enhancing transmitter release.
• C) 4-AP blocks calcium channels, reducing calcium ion entry and transmitter release.
• D) 4-AP enhances potassium channels, shortening the duration of action potentials and reducing transmitter release.
• E) 4-AP enhances calcium channels, increasing calcium ion entry and transmitter release.

Understand the concept and importance of statistical significance in research.

Learn the relationship between null hypotheses, Type I and Type II errors, and their implications in practical research scenarios.

Comprehend the definition and role of critical values in statistical tests.

Grasp the difference between statistical significance and meaningfulness of results.

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Definitions:

Coefficient Of Determination

A statistical measure that assesses the proportion of variance in a dependent variable predictable from an independent variable, often denoted as R².

Coefficient Of Correlation

A measure that determines the degree to which two variables' movements are associated, ranging from -1 to 1.

Independent Variable

A variable that is manipulated in an experiment to observe its effect on the dependent variable, without being influenced by other variables.

Dependent Variable

The variable in an experiment that is expected to change in response to manipulations of the independent variable.