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in Cell The Unit of Life by (35.1k points)
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How do neutral solutes move across the plasma membrane? Can the polar molecules also move across it in the same way? If not, then how are these transported across the membrane?

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Neutral solutes move across the plasma membrane through osmosis. On the other hand, polar molecules cannot pass through the non-polar membrane. They require a carrier protein to help them to move across the membrane. Such transport requires energy and is called active transport.

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