Solution:Differences between parenchyma, collenchyma and
sclerenchyma
Parenchyma
These are living cells with thin walls. The cells are loosely packed with large intercellular spaces.
Collenchyma
These are living cells with slightly thick walls.
Cells are elongated.
The cells are irregularly thickened at the corners with very little
intercellular spaces.
Sclerenchyma
These are dead cells with thick cell walls.
Cells are long and narrow.
The cells are thickened due to lignin. These are so thick that there is no
internal space inside the cell.