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- #Biology
- #Structural Organisation in Animals and Plants
Meristematic tissues are composed of
Option: 1
Mature cells
Option: 2
Fully differentiated cells
Option: 3
Cells that cannot divide
Option: 4
Immature cells with the power to divide
Answers (1)
Meristematic Tissues or Meristems
- All the cells of the embryo of the plant are capable of dividing and giving rise to new cells.
- But as the plant grows, this feature becomes restricted to only a few regions.
- Meristem is one such localised region in which actual cell division occurs.
- Therefore, the growth in plants is referred to as localised growth.
- Meristematic cells divide to form permanent cells as well add to the volume of meristematic cells.
Features of meristematic cells:
- Meristematic cells are oval, polygonal and spherical in shape.
- These are compactly arranged and lack intercellular spaces.
- These are thin, homogenous and have a cellulosic cell wall.
- They have dense cytoplasm and prominent nuclei.
- The central vacuole is absent.
- These are undifferentiated cells. They contain proplastids.
- They have an enormous capacity to divide.
- They are metabolically very active but they do not store food material and further no plastids in them.
-
Meristematic tissues are composed of immature cells with the power to divide.
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