The Period After an Initial Stimulus When a Neuron Is

question 54

Multiple Choice

The period after an initial stimulus when a neuron is not sensitive to another stimulus is the
)

• A) absolute refractory period
• B) repolarization
• C) depolarization
• D) resting period

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Definitions:

Prokaryotic Cells

Cells without a nucleus or other membrane-bound organelles, including bacteria and archaea.

Eukaryotic Cells

Cells that contain a nucleus enclosed within membranes, distinguishing them from prokaryotic cells. They make up all complex organisms, including humans, plants, and fungi.

Nucleus

(1) The central region of an atom that contains the protons and neutrons. (2) A cell organelle in eukaryotes that contains the DNA and serves as the control center of the cell. (3) A mass of nerve cell bodies in the central nervous system. Compare with ganglion.

Membrane-Enclosed Organelles

Structures within eukaryotic cells that are surrounded by a lipid bilayer membrane, each performing distinct functions vital to the cell’s operation.