Question

Collenchyma differs from sclerenchyma in

• A. Having suberin cell walls and protoplasm
• B. Having lignin cell walls and protoplasm
• C. Not having protoplasm and pectin cell walls
• D. Having pectin cell walls and protoplasm

Answer 1

The correct option is D

Having pectin cell walls and protoplasm

The correct option is D:

Explanation of the correct option:

1. Cells of Collenchyma tissue contain protoplasm and live without intercellular spaces.
2. The cell walls are thickened at the corners and are made up of cellulose, hemicellulose, and pectin.
3. Cells of Sclerenchyma tissue lack protoplasm.
4. Due to the deposition of lignin, Sclerenchyma cells become dead, thick-walled, and hard.

Explanation of incorrect options:

Option A:

Cells of Collenchyma have pectin cell walls and protoplasm.

Option B:

Cells of Sclerenchyma have lignin cell walls but are devoid of protoplasm.

Option C:

Cells of Collenchyma have pectin cell walls and protoplasm.

Final Answer: Thus, Collenchyma differs from Sclerenchyma in having pectin cell walls and protoplasm.