A Cell Membrane That Is Selectively Permeable

question 97

Multiple Choice

A cell membrane that is selectively permeable

• A) randomly chooses which substances will pass through.
• B) can change which substances pass through by changing its lipid and protein content.
• C) is impermeable to all substances but water.
• D) will only allow substances in or out if their concentration in the cell is above or below a certain point.

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