what are the characteristics of Parenchyma,Collenchyma and Sclernchyma?
Features of parenchyma:
They form basic packing tissue.
Cells of this tissue are relatively unspecialised and may be oval, rounded or elongated in shape.
Their cell walls are thin.
These cells are living.
They show large intercellular spaces.
Cytoplasm is dense with a small nucleus.
The celss possess a large central vacuole.
Parenchyma provides support to plants and also stores food
Features of Sclerenchyma:
Their cells are dead.
Cells are long and narrow.
Cells are empty and devoid of protoplasm.
Cell walls are highly thickened due to lignin deposition.
There is no internal space inside the cell.
Cells are closely packed, with no intercellular spaces.
It is a strengthening or mechanical tissue.
Features of collenchyma:
They possess living cells.
It shows deposition of extra cellulose at the corners of the cells.
Intercellular spaces are generally absenjt.
Their cells are elongated in shape.
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