Question

write on the function of cell wall

Answer 1

YOUR ANSWER......^_^..

=>》The cell wall protects the delicate inner parts of the cell.
□》Being rigid, it gives shape to the cell.–Being rigid, it does not allow distension of the cell, thus leading to turgidity of the cell that is useful in many ways
■》It freely allows the passage of water and other chemicals into and out of the cells
■》There are breaks in the primary wall of the adjacent cells through which cytoplasm of one cell remains connected with the other.
●》These cytoplasmic strands which connect one cell to the other one are known as plasmodesmata.
=》Walls of two adjacent cells are firmly joined by a cementing material called middle lamella made of calcium pectate.
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Answer 2

AnSwer :

◑ Functions of cell wall :-

1. It maintains the shape of the cell.
2. It protects the cells from mechanical injury and prevents their desiccation.
3. Being freely permeable, it allows the materials to pass in and out of the cells.
4. It provides mechanical support against gravity. It is due to the rigid cells walls that the aerial parts of the plants are able to keep erect and expose their leaves to sunlight.
5. The plasmodesmata form intercellular connections that allows exchange of materials between adjacent living cemm contents.

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Know more :

※ An additional layer outside the plasma membrane, called the cell wall.

※ It is non-living, rigid, completely permeable and is secreted by the cell itself to protect its contents.

※ Plant cell was first observed by Robert Hooke in 1665.

※ He observed a thin slice of cork under his primitive microscope.

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