Question

different between parenchyma collenchyma and sclernchyma

Answer 1

Parenchyma - animal tissue that constitutes the essential part of an organ as contrasted with eg: connective tissue and blood vessels.

Collenchyma - tissue strengthened by the thickening of cell walls, as in young shoots.

Sclerenchyma- strengthening tissue in a plant, formed from cells with thickened, typically lignified, walls.

Answer 2

Heya !


Here is your answer =================================================================================

@ Parenchyma

=> Living cell with thin cell walls.

=> Cells are uniformly thin and are loosely packed with large intercellular spaces.

=> It is present in soft parts of plants, in stems , leaves , roots , flowers and fruits.

=> It stores food, waste products and forms packing tissue.

@ Collenchyma

=> Living cells with slightly thick cells walls.

=> Cells are elongated and irregularly thickened at the corners with very little intercellular spaces.

=> It is present below epidermis of leaves, petioles and stems of dicot plants.

=> It provides both mechanical support and flexibility. It allows easy sending of leaves and stems without breaking.

@ Sclerenchyma

=> Dead cells with thick cell walls.

=> Cells are long and narrow as the walls are thickened due to lignin ( a type of cementing material ). These walls are so thick that there is no internal space inside the cell.

=> It is present in xylem , phloem , other convering of nuts , seeds and pulp of some fruits like guava.

=> It provides rigidity and mechanical strength.

Hope it helps !!!