Question

What is Plasmolysis ?​

Answer 1

PLASMOLYSIS

• Plasmolysis is  the process of contraction of the plant cells .

• In is caused by the water movement on the surrounding solutions.

• If the cell is in a $\red\star$hypertonic solution water comes out from the cell , it is due to ex-osmosis.

• The first stage of plasmolysis is known as limiting plasmolysis.

• On further loss of water the protoplasm of the cell withdrwas to a corner and is called incipient plasmoslysis.

• Then the protoplast separartes from the cell wall and gets a sperical form and this stage is called evident plasmolysis and the solution gets filled between the cell wall and protoplast.

$\red\star$Hypertonic Solution

Hypertonic solutions are solutions whose solution concentration is higher than the protoplasm of the cell.

Some Applications of Plasmolysis

• Plasmolysis can be used to detect dead cells and living cells.
• It is used in weed killing with common salt.
• The osmostic pressure of a cell can be known by this process.

Answer 2

$\huge\bf{Answer :}$

⇒ Plasmolysis is a biological phenomenon in which the protoplasm of a plant cell shrinks because of deprivation of water in the plant cell.

⇒ It is a rarely occuring process.

EXTRA INFORMATION :-

⇒ Lysosomes are also known as Suicidal Bags of the cell. They consists of strong enzymes that can digest a cell.

⇒ Mitochondria is considered as the power house of a cell .

⇒ There are two types of Endoplasmic Reticulum :-

• Smooth Endoplasmic Reticulum
• Rough Endoplasmic Reticulum

⇒ Golgi Apparatus is referred to as the post office of the cell as it initiates the movements of proteins across the cytoplasm of cell.