Question

Write down two significance of plasmolysis​

Answer 1

Explanation:

When a plant cell is placed in hypertonic solution, the process of exosmosis starts and water from the cell sap diffuses out into the solution of external medium. This causes a reduction in the tension of the cell wall and brings about the contraction of protoplasm due to the continuous loss of water. The protoplasm becomes rounded in shape due to contraction and such a cell is said to beplasmolysed and the phenomenon is referred to as plasmolysis. The initial stage of plasmolysis where the protoplasm just starts leaving the cell wall is called incipient plasmolysis.

When a completely plasmolysed cell is again placed in water or a hypotonic solution, endosmosis takes place and the protoplasm regains its original state and shape. i.e., the cell becomes fully turgid. This phenomenon is the reverse of plasmolysis and is calleddeplasmolysis.

Significance of Plasmolysis

 

1.          Helps to understand the living nature of a cell. 

2.          Helps to preserve meat, jellies and used in pickling as their salting kills bacteria by plasmolysis.

3.          Used to prove the permeability of cell wall and selectively permeable nature of plasma membrane.

hope this helps you

Answer 2

Explanation:

Helps to understand the living nature of a cell. 2. Helps to preserve meat, jellies and used in pickling as their salting kills bacteria by plasmolysis. 3. Used to prove the permeability of cell wall and selectively permeable nature of plasma membrane.

hope its help 3