how do neutral salute move across the plasma membrane ?can the polar molecule also move across it in the same way? if not then how are these Transporter 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 transverse across the membrane. Such a transport requires energy and is called active transport.
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The neutral solutes are lipid-soluble hence they pass through lipid bilayer. No polar molecules cannot move across the plasma membrane in the same way as neutral solutes; they require particular hydrophilic areas for their passage. They get transported by three types of transport mechanisms – ions, channels, permeases and active transport utilising ATP.
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