Question

why is water reabsorbed by the body

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Answer 1

This is essential for the kidneys to rapidly remove waste and toxins from the plasma efficiently. Reabsorption is the movement of water and solutes from the tubule back into the plasma. Reabsorption of water and specific solutes occurs to varying degrees over the entire length of the renal tubule.

Answer 2

Water moves from the tubular fluid into the cell in response to this gradient. The net effect is water reabsorption from the tubular fluid into the peritubular capillaries, caused by the increased oncotic pressure of the capillary blood and the active reabsorption of Na+ and other solutes (see