The differences between cell walls of parenchyma, collenchyma and sclerenchyma are given in the following table:
Parenchyma | Collenchyma | Sclerenchyma | |
1. | Cell wall is primary. | Cell wall is primary. | Cell wall is secondary. |
2. | Cells have thin walls and made up of cellulose. | Cell walls are thickened at the corners due to protein deposition. | Cell wall is very thick due to lignin deposition. |