Differentiate between Parenchyma , Collenchyma and Sclerenchyma on the basis of their cell wall.

	Parenchyma	Collenchyma	Sclerenchyma
1	They are plant’s simple tissue cells .	They are plant’s simple tissue cells.	They are plant’s simple tissue cells.
2	They are living cells.	They are living cells.	They are dead cells.
3	The cells of parenchyma have thin walls	Cells of collenchyma have slightly thick walls.	Sclerenchyma tissue cells have thick cell walls.
4	Cells of parenchyma are uniformly thin.	Cells of collenchyma elongated.	Cells are long and narrow.
5	The cells are loosely packed.	Cells of these tissues are irregularly thickened at the corners.	The cell walls of Sclerenchyma are thickened due to Lignin.
6	The cells of parenchyma have large intercellular spaces.	The cells of collenchyma have very little intercellular spaces.	The cells of sclerenchyma have no internal space inside the cells.