What Happens in a Squid Giant Axon When the Extracellular

question 8

Multiple Choice

What happens in a squid giant axon when the extracellular chloride concentration is increased?

• A) The membrane potential gets more positive (depolarizes).
• B) The membrane potential gets more negative (hyperpolarizes).
• C) The membrane potential stays about the same.
• D) The equilibrium potential for sodium gets more negative.
• E) The equilibrium potential for sodium gets more positive.

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Definitions:

Positive Linear Relationship

A relationship between two variables where an increase in one variable is associated with an increase in the other variable, represented by a positive slope on a scatter plot.

Confidence Interval

A span of numerical estimates, calculated using sample data, which probably includes the value of an unspecified parameter within the population.

Regression Line

A line that best fits a set of data points in linear regression analysis, showing the general direction in which the data tend to go.

Prediction Interval

An estimate of the interval within which future observations will fall, with a certain probability, given what has already been observed.