Cells found in the ear contain small hairs called stereocilia that respond to the pressure of a sound wave by either depolarizing or hyperpolarizing. Which of the following statements best describes the mechanism by which this happens?

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The pressure waves take away or deliver potassium ions to the cell.

  

The pressure waves carry electrical signals to the cells.

  

The pressure waves take away or deliver sodium ions to the cell.

  

The pressure waves bend the stereocilia, which causes ion channels to open or close.

 

asked Jan 1, 2013 in Biology by anonymous
    

1 Answer

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The pressure waves bend the stereocilia, which causes ion channels to open or close.

 

answered Jan 1, 2013 by anonymous

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