When an Action Potential Develops in One Location of an Axon

question 115

Multiple Choice

When an action potential develops in one location of an axon, ________.

• A) it will stimulate astrocytes to release chemicals
• B) it will regenerate the threshold stimulus at the originating location on the same axon
• C) Schwann cells in the area begin to divide and form a solid cellular cord
• D) it will propagate along the length of the axon toward the axon terminals
• E) it will propagate faster along the smaller unmyelinated fibers

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Definitions:

Dipeptide

A molecule consisting of two amino acids linked by a single peptide bond.

Val-Tyr

A dipeptide composed of the amino acids valine and tyrosine, often used in biochemical studies.

Disulfide Linkage

A covalent bond formed between two sulfur atoms, often found in proteins to stabilize their three-dimensional structure.

Oxidized

The process or state in which an atom, ion, or molecule loses electrons, often making it more reactive.