Question

8.4 Name the types of simple permanent tissues? which tissue makes up the hasks of coconut???
Plzz ans. me fast..​

Answer 1

Explanation:

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Three types of simple

Three types of simple permanent tissues:

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• Parenchyma

• Collenchyma

• Sclerenchyma

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Parenchyma:

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• The cells have an oval or round shape.

• The cell wall is made up of hemicellulose or cellulose.

• The cell is thin-walled.

• The cells have vacuoles and very small nucleus.

• It is found in all parts of the plant.

• The protoplasm is living and dense.

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Collenchyma:

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• Cells are long and thick walled.

• The cell wall is made up of cellulose and pectin.

• It is the only tissue with the highest refractive index due to the presence of pectin.

• It is found in hypodermis of dicot stem and the vascular bundle of dicot leaf.

• The amount of chloroplast is less in the cells.

• The cells have no intercellular spaces.

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Sclerenchyma:

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• These are dead tissues, very hard and rigid in texture.

• Cells are thick walled with various size and shapes.

• These provide mechanical support and rigidity to the plant.

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Sclerenchyma

makes up the

husk of coconut.

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Answer 2

$\huge\bold\red{Answer}$

These are the types of Simple Permanent Tissue:

$\\ \\ \\ \large 1. \implies {\boxed {\tt \blue { Parenchyma}}}$

• These cells are thin walled.
• Cells are living and nucleus present.
• Intercellular spaces present.
• Function: Stores food.

$\\ \\ \\ \large 2. \implies {\boxed {\tt \blue {Collenchyma }}}$

• Thick primary wall at corner.
• Cells are living and nucleus present.
• Intercellular spaces absent.
• Function: Provide mechanical support.

$\\ \\ \\ \large 3. \implies {\boxed {\tt \blue {Screlenchyma }}}$

• Thick walled.
• Dead cells are present.
• Intercellular spaces are absent.
• Function: Provide mechanical support.

Husk of coconut is made up of dead tissues. And dead cells are only present in Screlenchyma.

hence, Sclerenchyma tissue makes up the husk of coconut.