Give a short description of parenchymatous cells.
GeneralClass 12AllAnswered 27 Mar 2026
Answer
Parenchyma is the most abundant and versatile simple permanent tissue in plants.
Morphological Features:
- Shape: Generally isodiametric (spherical, oval, polygonal, rounded)
- Cell Wall:Thin, cellulosic primary walls
- Intercellular Spaces: May be closely packed or have small to large air spaces
- Living Tissue: Contains nucleus, cytoplasm, and large central vacuole
Functional Versatility:
|
Function |
Specialized Type |
|
Photosynthesis |
Chlorenchyma (with chloroplasts) |
|
Storage |
Storage parenchyma (starch, proteins, oils) |
|
Buoyancy |
Aerenchyma (large air cavities in aquatic plants) |
|
Water storage |
Aquiferous parenchyma (succulent plants) |
|
Wound healing |
Dedifferentiation into meristem |
Metabolic Importance: Parenchyma cells are metabolically active, performing respiration, protein synthesis, and secondary metabolite production.
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