Question

what is a meristematic tissue? parts of meristematic tissue?

Answer 1

A meristem is the tissue in most plants containing undifferentiated cells (meristematic cells), found in zones of the plant where growth can take place. ... In general, differentiated plant cells cannot divide or produce cells of a different type.
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Apical meristems may differentiate into three kinds of primary meristem:

Protoderm: lies around the outside of the stem and develops into the epidermis.

Procambium: lies just inside of the protoderm and develops into primary xylem and primary phloem. ...

Ground meristem: develops into the cortex and the pith.
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On the basis of origin and development of initiating cells, meristems can be divided into three types:

(i) Promeristem or priordial meristem:

A group of young meristematic cells of a growing organ. It is the early embryonic meristem from which other advanced meristems are derived. In a plant, it occupies a small area at the tip of stem and root. It further divides to form primary meristem.

ii) Primary meristem:
These are derived from promeristem. They are present below the promeristem at shoot and root apices. These cells divide and form permanent tissues.

iii) Secondary meristem
It is derived from primary permanent tissues which have the capacity of division e.g. Cork-cambium, cambium of roots and inter fascicular cambium of stem.

Answer 2

Answer:

Meristematic cells are generally small and cuboidal with large nuclei, small vacuoles, and thin walls. A plant has four kinds of meristems: the apical meristem and three kinds of lateral—vascular cambium, cork cambium, and intercalary meristem.

Explanation: