Aquaporins

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Aquaporins are water transport channel proteins to aid reabsorption. They are found in the collecting duct at the end of a nephron in the kidney.

The fusion of more aquaporins to the cell surface membrane is stimulated by the reception of ADH (anti-diuretic hormone), which is secreted in times of water shortage by the posterior pituitary gland, decreases water loss through urine.

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