When an Impulse Reaches a Synapse

question 73

Multiple Choice

When an impulse reaches a synapse:

• A) two nerve fibers come in direct contact.
• B) impulses will pass in either direction.
• C) an electrical spark will jump the gap.
• D) chemical transmitters are released.

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Definitions:

Sister Chromatids

Identical copies of a chromosome connected by a centromere, formed during the replication of a chromosome in preparation for cell division.

Centromere

Constriction where sister chromatids of a chromosome are held together.

Cytokinesis

Cytokinesis is the process during cell division where the cytoplasm of a parental cell is divided into two daughter cells.

Microtubules

Cylindrical structures found in cells that are involved in maintaining cell shape, enabling cell movement, and facilitating cell division.