Difference between Chlorenchyma and Collenchyma

Parenchyma, Collenchyma and Sclerenchyma are the important permanent tissues found in plants. Parenchyma cells of leaf and stem contain chlorophyll and they are called chlorenchyma (assimiltory parenchyma).
Collenchyma The cells of this tissue are living cells with vacuolated protoplast. The most important distinctive character of collenchyma is that either walls are unevenly thickened or these thickenings are confined to the corners of the cells. It is usually absent in monocot.
Chlorenchyma vs Collenchyma

Chlorenchyma

Collenchyma

Chloroplast containing parenchyma cells.
Chloroplast may be present or absent within the cells.
Isodiametric cells
In transverse section the cells look elongated and angular.
Chlorenchyma cells are not interlocked.
By their end walls the cells are interlocked.
Soft uniformly thin cell wall.
Hard unevenly thickened cell wall.
Photosynthetic and storage in function.
Photosynthetic and mechanical in function.
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