Some Tumor Cells Have a Large Number of Cl^- Channels

question 14

Multiple Choice

Some tumor cells have a large number of Cl^- channels on the plasma membrane. This makes the Cl^- permeability higher than that of any other ion and therefore:

• A) Causes the cell to swell when suspended in isotonic NaCl
• B) Causes the cell to shrink when suspended in isotonic NaCl
• C) Increases the steady state intracellular osmolality
• D) Decreases the steady state intracellular osmolality
• E) Causes the membrane potential to be near the equilibrium potential for Cl^-

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