What are tissues? What are their main groups?

1.	What are tissues? What are their main groups?
Answer» Tissue: A group of similar or dissimilar cells having a common origin and co-operating with one another to perform a similar or a set of similar functions is called a tissue. Plant tissues have been classified into two fundamental types: (1) Meristematic tissue: These are the tissues which are made up of group of immature and similar cells and are in continuous state of division, forming new cells. (2) Permanent tissue: These are composed of mature cells which have definite shape, size and functions and have lost the power of divisions.

Answer»

Tissue: A group of similar or dissimilar cells having a common origin and co-operating with one another to perform a similar or a set of similar functions is called a tissue.

Plant tissues have been classified into two fundamental types:

(1) Meristematic tissue: These are the tissues which are made up of group of immature and similar cells and are in continuous state of division, forming new cells.

(2) Permanent tissue: These are composed of mature cells which have definite shape, size and functions and have lost the power of divisions.

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