Question

Describe Collenchyma and Sclerenchyma.

Answer 1

Answer:

Collenchyma are plant tissues that consist of living elongated cells with unevenly thickened walls and acts as support especially in areas of primary growth. Sclerenchyma is a supportive or protective tissue in higher plants (vascular plants) composed of cells with walls thickened and often lignified.

Answer 2

Collenchyma-

• This tissue is composed of cells that are elongated and thickened with cellulose at the corners .
• There is no intercellular space .
• It provide support, protection and flexibility to plant organs.

Sclerenchyma-

• This tissue is composed of long, narrow cells whose walls are thickened with Lignin.
• Sclerenchyma cells are dead.
• They provide strength and flexibility to plant parts .