Question

Assertion (A)- Collenchyma tissue makes the plant flexible and provides

tensile strength.

Reason(R)- Cell wall of collenchyma cells are irregularly thickened with

cellulose and pectin.​

Answer 1

Answer:

Collenchyma is a specialized type of parenchyma which functions as supporting tissue. The cell walls are irregularly thickened due to the deposition of cellulose and pectin. It is a living tissue.

Explanation:

Answer 2

Both Assertion and Reason are true but the reason is not the correct explanation of assertion.

• Collenchyma is a type of simple permanent tissue. The tissues of Collenchyma provide their mechanical strength during stress. The flexibility of plants come from this tissue as during strong winds and other stressful conditions it withstands it in position. Hence, the Assertion is true.
• The cell wall of collenchyma cells is irregularly thickened with cellulose and pectin. It is because of these components in the cell wall why Collenchyma is a living tissue.
• Hence, both Assertion and Reason are true but the reason is not the correct explanation of assertion.