Q. 9

Write down names of different types of plant tissues.

Answer :

There are two types of plant tissues:

(a) Meristematic tissue: It is a group of cells which constantly divide and produce cells indefinitely throughout the life of a plant. Meristematic tissue is found in all the growing parts of a plant such as root tip, shoot tip, etc.


According to their positions in the plant body, meristems are divided into three categories:


(i) Apical meristem


(ii) Intercalary meristem


(iii) Lateral meristem


(b) Permanent tissues: : A permanent tissue is a group of cells which temporarily or permanently cease to divide. On the basis of composition, permanent tissues can be simple and complex:


(i) Simple permanent tissue: Three types of simple permanent tissues occurs in plants


(I) Parenchyma (II) Collenchyma (III) Sclerenchyma


(ii) Complex permanent tissue: There are two types


(I) Xylem (II) Phloem


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