A Stimulus That Opens Gated Potassium Ion Channels, Moving the Membrane

question 27

Multiple Choice

A stimulus that opens gated potassium ion channels, moving the membrane voltage value below the resting potential value, results in which of the following?

• A) repolarization
• B) hyperpolarization
• C) depolarization
• D) refraction
• E) summation

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Definitions:

Bonds

Financial instruments representing a loan made by an investor to a borrower, often a corporation or government, which pays interest over time and returns the principal at maturity.

Atoms

The smallest constituent unit of ordinary matter that has the properties of a chemical element.

Chemical Reaction

A change in the bonds between the atoms of different chemical elements or compounds.

Crankshaft

The shaft to which the pistons’ connecting rods are attached and through which power is transmitted from the engine to the transmission and ultimately to the drive wheels.