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reason for the growth in plants is limited to certain regions ?

reason for the growth in plants is limited to certain regions ?
 

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2 Answers

Raheema Javed
156 Points
9 years ago
The reason for this is the presence of meristematic cells which are present only in some regions in the plant.
Meristematic tissues are cells or group of cells that have the ability to divide. These tissues in a plant consist of small, densely packed cells that can keep dividing to form new cells.
Meristematic tissues is found in the followinglocations:

near tips of roots and stems. This is called apical meristems.
in the buds and nodes of stems.
in the cambium between the xylem and phloem in dicotyledonous trees and shrubs.
under the epidermis of dicotyledonous trees and shrubs (cork cambium).
in the pericycle of roots, producing branch roots.
shubham sharda
360 Points
8 years ago
Because of merismatic tissue present in some parts of plants as cell division generally occurs  in the apical regions of shoot and root. Thus, the meristematic cells present at shoot and root apices are responsible for growth in plants. They help in increasing the thickness of stem & root due to secondary growth.

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