(a) What is meant by simple permanent tissue?

(b) Compare between the supportive simple permanent tissues.

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Solution

(a) Simple permanent tissues are composed of cells which are structurally and functionally similar. These tissues are made up of one type of cells. Simple permanent tissues are of two types – protective (epidermis) and supportive (Parenchyma, collenchyma and sclerenchyma).

Parenchyma Collenchyma Sclerenchyma

It consists of thin-walled living cells. It consists of thin-walled living cells. It consists of dead cells.

They are involved in food storage. They are the chief mechanical tissue in young plants, particularly dicot stems. It is mainly a mechanical tissue.

Comprises a thin cell wall and made up of cellulose. It comprises an uneven cell wall and is made up of pectin and hemicellulose. It comprises a hard and thick cell wall and is made up of lignin.

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Similar questions

What is simple permanent tissue?

Distinguish between

(I) Meristematic tissue and Permanent tissue

(II) Simple permanent tissue and Complex permanent tissue

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Parenchyma	Collenchyma	Sclerenchyma
It consists of thin-walled living cells.	It consists of thin-walled living cells.	It consists of dead cells.
They are involved in food storage.	They are the chief mechanical tissue in young plants, particularly dicot stems.	It is mainly a mechanical tissue.
Comprises a thin cell wall and made up of cellulose.	It comprises an uneven cell wall and is made up of pectin and hemicellulose.	It comprises a hard and thick cell wall and is made up of lignin.