Write some difference between Parenchyma and collenchyma tissues.


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Difference Between Parenchyma and Collenchyma Cells :

Parenchyma Cells

Collenchyma Cells
What it means
Originate from ground and protoderm meristems Originate from pro-cambium. Epidermal layer of plants are composed of collenchyma cells
Location
Found in every delicate plant part Specifically found in leaves, stems and petioles
Cell type
Living and unspecialized cells Living and specialized cells
Shape of the cell
Isodiametric generally, may vary in shape Elongated cells
Cell wall
  • Present and thin-walled
  • Made of cellulose 
  • Present, uneven cell wall
  • Made of pectin and hemicellulose
Intercellular spaces
Present between cells Less space present
Function
  • Food storage
  • Gaseous exchange
  • Photosynthesis
  • Renders mechanical support
  • Elasticity