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The collenchyma is thickened due to the ...

The collenchyma is thickened due to the deposition of

A

Lignin

B

Cutin

C

Suberin

D

Pectin

Text Solution

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The correct Answer is:
**Step-by-Step Solution:** 1. **Understanding Collenchyma**: Collenchyma is a type of plant tissue that provides structural support, particularly in growing parts of the plant. It consists of elongated cells. 2. **Cell Structure**: The walls of collenchyma cells are characterized by irregular thickening. This thickening is essential for their function in providing mechanical support. 3. **Composition of Cell Walls**: The primary cell wall of collenchyma is primarily made up of cellulose and pectin. 4. **Thickening Agent**: The thickening of collenchyma walls is mainly due to the deposition of pectin. Pectin is a polysaccharide that contributes to the rigidity and structure of the cell walls. 5. **Distinguishing Other Options**: - Lignin is associated with sclerenchyma tissue, which provides more rigid support. - Cutin is found in the epidermis and helps in reducing water loss. - Suberin is present in cork cells and provides protection and waterproofing. 6. **Conclusion**: Therefore, the correct answer to the question is that the collenchyma is thickened due to the deposition of **pectin**. ---
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