biology

How Do Cell Membranes Regulate Water Transport?

šŸ’” The Answer

  • Aquaporins are specialized channels for water transport across membranes.
  • They allow rapid passive water movement driven by osmosis.
  • Many aquaporins also transport small solutes selectively.
  • Their presence enables cells to adjust water balance quickly.
  • In kidneys, aquaporins regulate urine concentration.

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