The mechanism of water reabsorption by the renal tubules is ________.

Question

Quizplus · Accepted Answer

Water reabsorption by the renal tubules occurs primarily through osmosis, as the concentration of solutes in the tubule is higher than the surrounding interstitial fluid. Active transport is involved in the reabsorption of certain ions and nutrients, but not water. Filtration occurs at the glomerulus, where water and solutes are initially forced out of the blood and into the tubule. Cotransport with sodium ions can occur for some solutes, but not for water.

The Mechanism of Water Reabsorption by the Renal Tubules Is