Which of the following is not parenchymatous in nature-a)Secondary med...
Not Parenchymatous Nature of Pericycle of Dicot Stem and Hypodermis of Monocot Stem
Parenchyma is a type of simple permanent tissue that consists of living cells with thin cell walls and large intercellular spaces. They are responsible for various functions such as photosynthesis, storage, and secretion. However, some tissues in plants are not parenchymatous in nature.
Pericycle of Dicot Stem
The pericycle is a part of the vascular cylinder of dicot stems and roots. It is a thin layer of cells that lies just inside the endodermis. The pericycle cells are specialized and have the ability to divide and differentiate into lateral roots. Unlike parenchyma cells, these cells have thickened cell walls and are not involved in photosynthesis, storage or secretion.
Hypodermis of Monocot Stem
The hypodermis is a layer of cells that lies just below the epidermis of monocot stems. It consists of thick-walled cells that provide mechanical support to the stem. These cells are not involved in photosynthesis, storage or secretion and are not parenchymatous in nature.
Conclusion
Among the given options, the pericycle of dicot stem and hypodermis of monocot stem are not parenchymatous in nature. They have specialized functions and thick-walled cells that provide mechanical support and help in the formation of lateral roots.
Which of the following is not parenchymatous in nature-a)Secondary med...
Pericycle is the outer most part of the stele. In dicot, stem pericycle is, sclerenchymatous, discontinuous, multilayered and present in the form of patches over the vascular bundles.
The region present below the epidermis in monocot stem is hypodermis. It is composed with sclerenchyma in monocots.
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