Which of the following is the selective barrier of a root that determines which substances pass between the cortex and vascular tissue?

Question

Quizplus · Accepted Answer

The endodermis is the selective barrier of a root that regulates the movement of water and solutes between the cortex and vascular tissue. It contains a band of cell walls rich in suberin, known as the Casparian strip, that forces water and solutes to pass through the endodermal cells rather than between them, allowing for selective uptake of nutrients and water. The epidermis, cuticle, and xylem all have important functions in the root, but they do not act as selective barriers between the cortex and vascular tissue.

Which of the Following Is the Selective Barrier of a Root