Collenchyma differ from parenchyma in having
Answers
BASIS FOR COMPARISON PARENCHYMA COLLENCHYMA SCLERENCHYMA
Meaning
The living plant cells are originating from ground and protoderm meristem. These type of cells are most abundantly found in plants tissue.
The type of living plant cells originating from the pro-cambium. The epidermal layers of the plant are made of collenchyma cell.
The hard and outer part of the stem is made up of the sclerenchyma cells. These are the dead plant cells which originate from ground meristem and protoderm procambium.
Found in
These type of cells are present in every soft part of the plant. These cells are found in specific part of the plant like leaves, stems, and petioles. It is found in mature parts of the plants or trees.
Type of cell
Unspecialized and living cells.
Specialized cells and living cells.
Specialized, matured and dead cells.
Cell Shape
There are various shapes of the cells, but generally, they are isodiametric. Elongated cells are present.
Sclereids, elongated and fibre shape.
Cell wall
Thin cell wall present.
Uneven cell wall.
Hard and thick cell wall present.
The cell wall is made up of cellulose.
The cell wall is made up of pectin and hemicellulose.
The cell wall is made up of lignin.
Intercellular space between the cells Present.
Less space is present between the cells.
Absent and so cells are tightly packed.
Function
Parenchyma cells help in storage of foods, in gaseous exchange, and in photosynthesis. Collenchyma cells provide mechanical support and elasticity to the plant. Sclerenchyma cells provide mechanical support to the plant. It also supports transportation of water and nutrients to the plants.
- collenchyma differ from parenchyma by having lignin deposits at the corner
- parenchyma has primary cellulosic cell wall
- collenchyma has cell wall made up of cellulose hemicellulose pectin that is why it also help in the mechanical support of plant so also called as living mechanical tissue