Sclerenchyma usually___________and_____________ protoplasts.

Correct Answer : D.

Sclerenchyma consists of long, narrow cells with thick and lignified cell walls having a few or numerous pits. They are usually dead and without protoplasts. They are simple dead mechanical tissue occuring in mature organs of plants body. They are chiefly distributed in cortex, pericyele, xylem and phloem region.