Plant tissues long 1

Question 1

What are Meristematic tissues ?

Answer 1

Meristematic tissues are found in the growing regions of the plant like the tips of root, stem and branches. They divide continuously and help in the growth of the plant. They are of three types.

i) Apical meristematic tissues: -are present in the tips of stems and roots and help in their growth.

ii) Lateral meristematic tissues: -are present in the sides of stems and roots and help to increase their girth.

iii) Intercalary meristematic tissues: -are present at the base of leaves and internodes and help in the growth of those parts.

Question 2

What are permanent tissues ?

Answer 2

Permanent tissue are formed from meristematic tissues. They do not divide and have permanent shape and size.

Permanent tissues are of two main types. They are Simple permanent tissues and Complex permanent tissues.

i) Simple permanent tissues: -are made up of one type of cells. They are of three types called Parenchyma, Collenchyma and Sclerenchyma

ii) Complex permanent tissues: - Complex tissues are made of more than one type of cells. All these cells coordinate to perform a common function. Xylem and Phloem are examples of such complex tissues.