A Cell Is Isolated,and Electrophysiology Studies Reveal That the Resting

question 31

Multiple Choice

A cell is isolated,and electrophysiology studies reveal that the resting membrane potential is -70 millivolts.The predominant intracellular ion is Na⁺,and the predominant extracellular ion is K⁺.With voltage change,which of the following would result in an action potential?

• A) K⁺ rushing into the cell
• B) Na⁺ rushing into the cell
• C) Na⁺ rushing out of the cell
• D) K⁺ rushing out of the cell

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Definitions:

Short-term Memory

The skill to retain a slight quantity of information in an instantly available status for a short span of time.

Elaborative Rehearsal

Elaborative Rehearsal is a method of memory consolidation in which information is related to existing knowledge or deeply analyzed to facilitate long-term storage.

Long-term Memory

A type of storage in the brain capable of holding information for long periods, sometimes indefinitely.

Short-term Memory

The capacity for holding, but not manipulating, a small amount of information in mind in an active, readily accessible state for a short period of time.