Question

Explain the Meristematic tissue.
write it's functions?​

Answer 1

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Meristematic tissue is group of immature cells that has capacity of division and redivision.

The term meristem was coined by Nageli (1858). Meristemsin plants are found in apex of stem, root, leaf primordia, vascular cambium, cork cambium, etc.

Characteristics of Meristematic Tissue:

1. They are composed of immature cells.

ADVERTISEMENTS:

2. Absence of intercellular spaces.

3. Cells are oval, rounded or polygonal in shape.

4. Cells are always living and thin walled.

5. Cells are rich in cytoplasm with minute vacuoles.

6. Cell is diploid and shows mitotic cell division.

7. Cell is devoid of reserve food materials, ER and plastids.

L.S Shoot to Show position of meristematic tissues

Classification of Meristematic Tissue

Functions of Meristematic Tissue:

1. Meristems are actively dividing tissues of the plant.

2. They are responsible for primary (elongation) and secondary (thickness) growth of the plant.

3. All new organs and their growth occur by the division of meristematic tissue.

4. Secondary tissues such as, wood, cork are also formed due to activity of meristematic tissue.

Answer 2

Explanation:

A meristem is the tissue in most plants containing undifferentiated cells (meristematic cells), found in zones of the plant where growth can take place. Meristematic cells give rise to various organs of a plant and are responsible for growth.

Functions of meristem are according to their type:

1. Primary meristem: Increases length of plant
2. Intercalary meristem: Increases distance between two nodes
3. Secondary meristem: (Includes cambium) Increases breadth of plant.

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