What is the difference between plasmolysis and deplasmolysis

A hypertonic solution has high solute concentration, i. As both plasmolysis and deplasmolysis are the types of osmosis, the net movement of water must be towards the low concentration of solute. As a result, water moves into the cell sap in case of deplasmolysis, where the solute concentration is low.

Oppositely, the water passively diffuses into the cell surrounding in case of plasmolysis, where solute concentration is low. The net flow of water is the movement of water to the direction of high solute concentration, or we can say in the direction of low water concentration. Therefore, the net movement of water in plasmolysis will be positive , as the water flows from the cell sap to the surrounding low water concentration across the concentration gradient. Similarly, the net movement of water will be negative in the case of deplasmolysis because the water enters the cell sap from the cell surrounding, down the concentration gradient.

Deplasmolysis occurs as a result of low water potential of the surrounding, whereas plasmolysis results due to the high water potential of the cell surrounding.

This results in a very low osmotic pressure during plasmolysis and high during deplasmolysis. Due to the high solute salt, sugar, etc.

Oppositely, the low solute concentration will allow water to enter the cell, which later becomes turgid. Plasmolysis is a type of exosmosis, in which water releases out of the semipermeable cell membrane to the surrounding. In contrast, deplasmolysis causes water movement into the cell from the surrounding through the semipermeable membrane that eventually makes the cell turgid. Leave a Comment Cancel Reply Your email address will not be published.

Endosmosis involves the gaining of water and exosmosis which involve the loss of water by the cell. They normally involve the movement of water into and out of the cell. The core difference between plasmolysis and deplasmolysis is that plasmolysis is the constriction of the protoplast as a result of exosmosis while deplasmolysis is the swelling of protoplast as result of endosmosis. Plasmolysis is the constriction of the protoplast as a result of water loss during exosmosis. It makes the protoplast to shrink and get separated from the cell wall.

The hypertonic solution is responsible for the occurrence of the process since it has a higher concentration of the solute than the cell sap. In convex plasmolysis , the cytoplasm is rounded up to form convex ends. In concave plasmolysis , the separation of the cytoplasm produces concave pockets. Plasmolysis is a reversible process that can be replaced by placing the cell in a hypotonic solution.

The persisting plasmolysis may lead to cytorrhysis — the complete collapse of the cell wall, leading to the death of the cell. Deplasmolysis refers to the reverse of plasmolysis by which the normal size of the protoplasm is established by the entrance of water into the cell by endosmosis. Thus, deplasmolysis is the swelling of a plasmolyzed cell.

It occurs when the cell is placed in a hypotonic solution. Water moves into the cell by endosmosis since the water potential of the surrounding solution is higher than that of the cytoplasm. Isotonic solutions contain similar solute concentrations in the cytoplasm of a normal cell. Thus, neither plasmolysis nor deplasmolysis occurs in isotonic solutions. Plasmolysis: Plasmolysis refers to the shrinking and separation of the cell membrane from the cell wall due to the exosmosis.

Deplasmolysis: Deplasmolysis refers to the entrance of water into a plasmolysed plant cell, causing the cell membrane to return to the cell wall. Plasmolysis: Water molecules move out of the cell during plasmolysis. Deplasmolysis: Water molecules move into the cell during plasmolysis.

Plasmolysis: Plasmolysis occurs during exosmosis. Deplasmolysis: Deplasmolysis occurs during endosmosis. Plasmolysis: Plasmolysis occurs when cells are placed in a hypertonic solution. Deplasmolysis: Deplasmolysis occurs when cells are placed in a hypotonic solution.