What essential role does the root endodermis play during mineral absorption in plants? | NCERT solution | Class 11 Biology | Unit-11 Transport in Plants



Q.14:- What essential role does the root endodermis play during mineral absorption in plants?

 

Answer:-



Like all cells, the endodermal cells have many transport proteins embedded in their plasma membrane; they let some solutes cross the membrane, but not others. Transport proteins of endodermal cells are control points, where a plant adjusts the quantity and types of solutes that reach the xylem. Because of the layer of suberin, the root endodermis has the ability to actively transport ions in one direction only.