Question

Differentiate between parenchyma, collenchyma and sclerenchyma

Answer 1

1. Simple permanent tissue that constitutes a major portion of ground tissue in plants is parenchyma where vascular tissues are also embedded.
2. Cellular tissues which compose the bulk of plant tissues long with parenchyma are collenchyma.
3. The permanent tissues which have lost the ability to divide and had attained a definite shape are sclerenchyma.

Parenchyma	Collenchyma	Sclerenchyma
1. The cells are present in the soft parts of the plants like leaves, fruits etc.	The cells are present in leaves, petiole and young stems.	The cells are present in mature parts of the plant such as herbaceous perennials and woody plants.
2. These are not specialised cells.	These are specialised cells.	These are also specialised cells.
3. Cells are consists of thin cell walls.	Cells are consists of unequally thin cells.	Cells are consists of rigid and thick cell walls.
4. The cell wall of the cell is made up of cellulose.	The cell wall is made up of pectin and cellulose.	The cell wall is made up of lignin which makes it waterproof.
5. At maturity, it consists of living cells.	At maturity, it consists of living cells.	At maturity consists of dead cells.