Question

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Write the function of cell wall. MENTION THEIR IMPORATNT FUNCTIONS ONLY

Answer 1

Answer:

Cell wall was discovered by Robert Hooke

The outermost covering of the plant cell is called cell wall.

It is absent in animal cell.

It is rigid,thick,porous and non living structure.

Middle Lamella is consist of Ca and Mg pectates. Fruits becomes soft and juicy due to dissolution of middle lamella.

Answer 2

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1. The cell wall provides mechanical strength and support to the cell.
2. Cell walls are rigid and resists the expansion of cell.
3. The orientation and shape of cell is controlled by the cell wall.
4. The cell wall helps in conduction of water.
5. It helps in long distance conduction of sap and organic solutes
6. The cellulose, hemicellulose and pectines are stored in cell wall.
7. It helps in movement of mineral salts.
8. They prevent bursting of cell

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• The cell wall is a rigid protective layer providing mechanical support to cell.
• It determines shape of cell.
• In higher plants its mainly made up of cellulose microfibrils
• In algea it's made up of silica and calcium carbonate.

The cell wall have three layers.

• Middle lamella
• Primary wall
• Secondary wall