Difference between parenchyma and meristematic tissue
Answers
Meristematic Tissues Vs Permanent Tissues
Similarities and Difference between Meristematic Tissues and Permanent Tissues
Tissue is a group of cells with more or less common origin and doing a specific function. Plant tissues are broadly classified into two categories based on their capacity of cell division. They are (1) Meristematic tissues and (2) Permanent tissues. Meristem is a type of tissue system in plants, composed of a mass of undifferentiated cells and their primary function is to take part in the growth of plants.
Permanent tissues are differentiated tissues doing specific functions such as conduction, providing mechanical support or carrying out photosynthesis etc. Permanent tissues are originated and differentiated from meristematic tissues.
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What is the difference between Parenchyma and Sclerenchyma?
Characteristic feature:
Parenchyma: Parenchyma cells have thin primary cell walls and lack secondary cell walls
Sclerenchyma: Sclerenchyma cells have both primary and secondary cell walls
Permeability:
Parenchyma: Parenchyma cells easily allow molecules to enter into cells and expel substances easily from the cell.
Sclerenchyma: Permeability of sclerenchyma cell is limited due to the presence of the secondary wall.
Photosynthesis:
Parenchyma: Parenchyma cells are well adapted for photosynthesis
Sclerenchyma: Sclerenchyma cells have very low photosynthetic ability
Storage tissue:
Parenchyma: Parenchyma tissue can store various products of the plant body, such as water, sugar, oil, etc.
Sclerenchyma: Sclerenchyma tissue does not store anything.
Growth:
Parenchyma: Parenchyma cells can produce new cells by acting as a meristematic tissue.
Sclerenchyma: Sclerenchyma cells do not produce new cells. Unlike parenchyma tissue, sclerenchyma tissue can provide elastic strength to plant body and synthesize lignin which hardens the plant body and prevents decay.