Question

What is plasmolysis ?? Don't spam atleast write from your own ✍️​

Answer 1

Answer:

contraction of the protoplast of a plant cell as a result of loss of water from the cell.

I hope it helps you !!

Answer 2

HEYA, BUDDY !!

: $\implies$ When cell loses water through Osmosis there is shrinkage or contraction of contents of the cell away from the cell wall. This phenomenon is called Plasmolysis.

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★ NOW ANSWER IN DETAILS !!

→ The Plasmolysis is the process by which a plant cell loses water when placed in a hypertonic solution a solution having a higher amount of solutes than the cell The actual process behind this is the movement of water outwards due to osmosis, resulting in the shrinkage of the entire cell.

★ Types of Plasmolysis

• ★ Concave Plasmolysis- In this, both the protoplasm and the plasma membrane shrinks and detaches from the cell wall. Due to the detachment of protoplasm then called protoplast a 'half-moon-shape' is formed in the cell. Nonetheless, concave plasmolysis can be reversed by placing the cell in a hypotonic solution.

• ★ Convex Plasmolysis- This is an irreversible process. The excessive loss of water from the cell loosens the plasma membrane and protoplasts, leading to the detachment from the cell wall. As this process cannot be reversed, it results in the destruction of the cell. Hence, this is what happens when a plant withers and dies from lack of water.

★ Plasmolysis Examples

• ★ The Plasmolysis takes place in the extreme loss of water from the cell, and this makes it a rare occurrence naturally. It can be witnessed when the plants are exposed to coastal flooding or chemical weedicides. Few common plasmolysis examples include the shrinking of the food and pickle that we put in excessive salts to preserve them.