What are the charact3ristics features of meristematic tissue?
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✯ Meristematic tissue :-
I plant, specialised region of active cell division and growth are called meristems. Meristematic tissue is a group of immature cell that are in continuous state of division.
Chief characteristics of Meristematic tissue. Cell my be round, oval, polygonal or rectangular and have thin cellulose walls, dense cytoplasm with prominent nuclei, intercellular space are absent, many small vacuoles or vacuoles are absent and cells are in active state of metabolism.
✯ Classification :- On the basis of mode of origin and development, following 3 type.
1. Promeristem :- Also called primordial or embryonic meristem, primary stage of Meristematic cells.
Example :- Both apical meristem and intercalary meristems are primary meristem
2. Secondary meristem :- Develop from primary permanent tissue not present from the very beginning of the formation of an organ but Develop at a later stage and give secondary permanent tissue.
Example :- Lateral meristem like interfasicular cambium of stem, cambium of roots crock cambium and wound cambium.
3. Apical meristem:- Occur at the tips of roots and shoots i.e. apices of root and stem and produce primary tissue, responsible for increase in length they form growing points at the apices of roots and stems.
4. Intercalary meristems:- Occur between mature tissue i.e. interested in between the permanent tissue, aslo add to the length of the plant or its organs, intercalary meristems occur only in monocot stems.
5. Lateral meristems:- Parent along the lateral sides of stem and root divide only in radial direction i.e responsible for increase in girth of stem and roots.
Example :- vascular cambium produce secondary xylem and secondary phloem.
✯ Function :- On the basis of function, following 3 types.
<> Apical meristems differentiate on to 3 kinds of primary meristems protoderm, ground meristem and procambium.
<> Protoderm : produce epidermal tissue system. epiderms stomata root hair's and stem hair's or trichomes.
<> Ground meristems :- Produced ground tissue system hypodermis, cortex, endodermis, pericycle and medulla or pith.
<> Procambium: produce vascular or fascicular tissue system.
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I hope it's help you....????✌️✌️
✯ Meristematic tissue :-
I plant, specialised region of active cell division and growth are called meristems. Meristematic tissue is a group of immature cell that are in continuous state of division.
Chief characteristics of Meristematic tissue. Cell my be round, oval, polygonal or rectangular and have thin cellulose walls, dense cytoplasm with prominent nuclei, intercellular space are absent, many small vacuoles or vacuoles are absent and cells are in active state of metabolism.
✯ Classification :- On the basis of mode of origin and development, following 3 type.
1. Promeristem :- Also called primordial or embryonic meristem, primary stage of Meristematic cells.
Example :- Both apical meristem and intercalary meristems are primary meristem
2. Secondary meristem :- Develop from primary permanent tissue not present from the very beginning of the formation of an organ but Develop at a later stage and give secondary permanent tissue.
Example :- Lateral meristem like interfasicular cambium of stem, cambium of roots crock cambium and wound cambium.
3. Apical meristem:- Occur at the tips of roots and shoots i.e. apices of root and stem and produce primary tissue, responsible for increase in length they form growing points at the apices of roots and stems.
4. Intercalary meristems:- Occur between mature tissue i.e. interested in between the permanent tissue, aslo add to the length of the plant or its organs, intercalary meristems occur only in monocot stems.
5. Lateral meristems:- Parent along the lateral sides of stem and root divide only in radial direction i.e responsible for increase in girth of stem and roots.
Example :- vascular cambium produce secondary xylem and secondary phloem.
✯ Function :- On the basis of function, following 3 types.
<> Apical meristems differentiate on to 3 kinds of primary meristems protoderm, ground meristem and procambium.
<> Protoderm : produce epidermal tissue system. epiderms stomata root hair's and stem hair's or trichomes.
<> Ground meristems :- Produced ground tissue system hypodermis, cortex, endodermis, pericycle and medulla or pith.
<> Procambium: produce vascular or fascicular tissue system.
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I hope it's help you....????✌️✌️
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All meristematic tissue cells are similar in structure.
They have thin cell walls
Abundant or dense cytoplasm and single large nucleus.
Spherical, oval, polygonal or rectangular shape.
No intercellular spaces between them.
Either no vacuoles at all or a few vacuoles
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