what is simple permenent tissue

Permanent tissues are composed of mature cells, which have lost their power of division. Cells in a permanent tissue attain definite shape, size, and functions. They may be dead or living. Permanent tissues are derived from meristematic tissues.

Simple permanent tissue are the similar types of cells grouped together which perform the same types of functions. It is of three types- Parenchyma, Collenchyma and Sclerenchyma.