NEET 2024 · BiologyGuard cellsPrevious Year Question
In the given figure of the stomatal apparatus, which component has thin outer walls and highly thickened inner walls?
Answer: (D) C. Answer: (D) C.
- A.D
- B.A
- C.B
- D.C✓
Correct Answer
(D) C
Solution & Explanation
Answer: (D) C. Solution: The component with thin outer walls (away from the stomatal pore) and highly thickened inner walls (towards the pore) is the guard cell. This uneven wall thickening is what makes the guard cells bend outward and open the stomatal pore when they become turgid. In the figure the guard cell is the labelled component C. NCERT Reference: NCERT Class XI, Ch 6 Anatomy of Flowering Plants, p.72, line ~26: "The outer walls of guard cells (away from the stomatal pore) are thin and the inner walls (towards the stomatal pore) are highly thickened."
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