What Causes the Rapid Change in the Resting Membrane Potential

question 31

Multiple Choice

What causes the rapid change in the resting membrane potential that initiates an action potential?

• A) Potassium gates open and potassium rushes into the cell changing the membrane potential from negative to positive.
• B) Sodium gates open and sodium rushes into the cell changing the membrane potential from negative to positive.
• C) Sodium gates close allowing potassium into the cell to changing the membrane potential from positive to negative.
• D) Potassium gates close allowing sodium into the cell to change the membrane potential from positive to negative.

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Definitions:

Accumulated Depreciation

The aggregate sum of depreciation costs accounted for a fixed asset since its inception of use.

Equipment Account

A financial account that tracks the acquisition cost and depreciation of a company's equipment.

Ordinary Repairs

Routine maintenance and repair costs that are expensed in the period incurred to keep an asset in its normal operating condition.

Physically Extracted

The process of removing materials or resources from the natural environment through manual or mechanical means.