Most water moving through the apoplast from the soil into the stele cells first crosses a plasma membrane in the cells of the

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Quizplus · Accepted Answer

The endodermis is a specialized layer of cells in the root that regulates the movement of water and solutes into the vascular tissue of the plant. The endodermal cells have a waxy Casparian strip in their cell walls which blocks the movement of water and solutes through the cell walls, thus forcing it to enter the cell membrane. This means that most of the water that moves from the soil into the stele cells must first cross the plasma membrane of the endodermal cells.

Most Water Moving Through the Apoplast from the Soil into the Stele