When the Potential Across a Membrane Reaches Threshold, the Sodium

question 105

Multiple Choice

 When the potential across a membrane reaches threshold, the sodium channels ____.

• A) open to let sodium enter the cell rapidly
• B) close to prevent sodium from entering the cell
• C) open to let sodium exit the cell rapidly
• D) close to prevent sodium from exiting the cell

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Definitions:

Wetlands

Areas of land designated by government agencies as protected areas that support wildlife and that therefore cannot be filled in or dredged by private parties.

Clean Water Act

United States federal law aimed at reducing pollution and protecting the nation’s waterways.

Discharge of Pollutants

The release of pollutants into the environment, often regulated by laws to prevent harm.

Clean Water Act

U.S. federal legislation aimed at reducing pollution and improving water quality in lakes, rivers, and streams.