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  • Card 14 / 34:
    Cells grown in the laboratory are mixed with a dye molecule that is unable to pass through the plasma membrane. If a ligand is added to the cells, observations show that the dye enters the cells. What type of receptor did the ligand bind to on the cell surface?

    An ion channel receptor opened up a pore in the membrane, which allowed the ionic dye to move into the cell.

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Source:  OpenStax, Biology 2015. OpenStax CNX. Dec 20, 2014 Download for free at https://legacy.cnx.org/content/col11737/1.1
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