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Cell membranes are relatively impermeable to water-soluble molecules because:.
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Cell membranes are relatively impermeable to water-soluble molecules because:.

User Netcyrax
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Answer:

Because the interior of the phospholipid bilayer is occupied by hydrophobic fatty acid chains, the membrane is impermeable to water-soluble molecules, including ions and most biological molecules.

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User Terry Lam
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