Ion Channels  in Cell Membranes

question 77

Multiple Choice

Ion channels  in cell membranes

• A)are nonspecific.
• B)are not affected by differences in electrical potential across the membrane.
• C)may open in response to binding a ligand.
• D)only allow ions to move from the extracellular fluid into the cell.
• E)only allow ions to move from the intracellular fluid out of the cell.

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