Define the terms osmotic pressure and turgor pressure.
Osmotic pressure : It is the pressure which needs to be applied to a solution to prevent the entry of water across a semipermeable membrane.
Turgor pressure : It is the pressure exerted by protoplast upon the cell membrane of cell wall.
Why the water is forced to move through cell membrane beyond endodermis ?
Water is forced to move through cell membranes beyond endodermis because of the suberin (waxy substance) present on radial walls of endodermal cells blocks water and solute movement through cell walls of endodermis.