Aquaporin roles in the body. Aquaporins are membrane proteins that form channels (lower right) that help water molecules pass in and out of cells. Unl
Aquaporin roles in the body. Aquaporins are membrane proteins that form channels (lower right) that help water molecules pass in and out of cells. Unlike ion channels, aquaporins help prevent ions and other dissolved substances carrying electrical charge from entering the cell, as they only allow lone water molecules or certain uncharged solutes to pass through. This helps maintain the electrochemical potential of the cell membrane. Clockwise from upper left, aquaporins play a vital role in many body areas, including the brain, the eye lens, the salivary glands, the kidneys, the blood vessels, the large intestine, and the lungs.
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