<P> Plasmolysis is mainly known as shrinking of cell membrane in hypertonic solution and great pressure . </P> <P> Plasmolysis can be of two types, either concave plasmolysis or convex plasmolysis . Convex plasmolysis is always irreversible while concave plasmolysis is usually reversible . During concave plasmolysis, the plasma membrane and the enclosed protoplast partially shrinks from the cell wall due to half - spherical, inwarding curving pockets forming between the plasma membrane and the cell wall . During convex plasmolysis, the plasma membrane and the enclosed protoplast shrinks completely from the cell wall, with the plasma membrane's ends in a symmetrically, spherically curved pattern . </P>

Discuss turgor pressure in plant cells. describe plasmolysis