Question

Given below are two statements.
Statement I - Root hair is composed of two layers.
Statement II - Outer layer of root hair cell wall is composed of cellulose and inner layer is made up of pectin.
In light of above statements, choose the most appropriate answer from the option given below.

• A. Both statement I and statement II are correct.
• B. Both statement I and statement II are incorrect.
• C. Statement I is correct and statement II is incorrect.
• D. Statement I is incorrect and statement II is correct.

Hint:

Root hair = Single cell (unicellular) Thin wall for efficient absorption

Answer 1

The Correct Option is B

Concept: Root hairs are unicellular tubular outgrowths of epidermal cells that help in absorption of water and minerals.
• Root hair is a single cell, not composed of multiple layers.
• Its cell wall is thin and permeable.
• The wall is mainly composed of cellulose and pectin, but not arranged as separate outer and inner layers as stated.

Step 1: Analyze Statement I.
Root hair is unicellular and not composed of two layers. Hence, Statement I is incorrect.

Step 2: Analyze Statement II.
The statement incorrectly assigns layered composition (outer cellulose, inner pectin). In reality, both components are present but not in such distinct layers. Hence, Statement II is incorrect.

Step 3: Conclusion.
Both statements are incorrect. Final Answer: Option (B)