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Question 17 . Plasma membranes are selectively permeable. This means that anything can pass into or out of a cell. the plasma membrane regulates the passage of material into and out of the
cell. glucose cannot enter the cell. plasma membranes must be very thick.
Please clarify your question.
Expert answered|cerise|Points 30|
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Asked 9/2/2011 10:24:34 PM
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