on the basis of cell dividing capacity classify plant tissues
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Answers
i) Protoderm meristem:
It is the outermost layer of the young growing region which develops to form epidermal tissue system.
(ii) Procambium meristem:
It is composed of narrow, elongated, prosenchymatous, meristematic cells that gives rise to the vascular tissues system.
(iii) Ground Meristen:
It is composed of large, thick-walled cells which develop to for ground tissue system, i.e. hypodermis, cortex and pith.
IV. Classification on basis of plane of divisions:
The growth pattern and plane of division of meristematic tissue is important to govern the mode of growth.
These tissues can be divided into three types:
(i) Mass meristem:
In such meristem, cell divisions occur in all planes resulting in an increase in volume. It can be observed in meristems of cortex and pith.
(ii) Rib or file meristem:
The cells divide only on one plane e.g., formation of filaments in algae.
(iii) Plate meristem:
These cells divide in two planes resulting to an increase in the area of an organ e.g. Leaf formation.