write down five difference between parenchyma, …
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Gaurav Seth 4 years, 2 months ago
POINTS FOR COMPARISON
PARENCHYMA
COLLENCHYMA
SCLERENCHYMA
Type of cells
Living plant cells which originate from ground and protoderm meristem.
Living plant cells which originate from the pro-cambium.
Dead plant cells which originate from ground meristem and protoderm procambium.
Location
Present in every soft part of the plant.
Found in leaves, stems, and petioles.
Found in mature parts of the plants or trees.
Nature of cells
Unspecialized and living cells.
Specialized cells and living cells.
Specialized, matured and dead cells.
Cell Shape
Generally isodiametric.
Elongated
Sclereids, elongated and fibre shape.
Cell wall
Thin cell wall present made up of cellulose.
Uneven cell wall made up of pectin and hemicellulose.
Hard and thick cell wall made up of lignin.
Intercellular space between the cells
Present
Less space present
Absent, so cells are tightly packed.
Function
Help in storage of foods, in gaseous exchange, and in photosynthesis.
Provide mechanical support and elasticity to the plant.
Provide mechanical support to the plant, help in transportation of water and nutrients to the plants.
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