Home › CBSE Class 11 › Biology › Anatomy of Flowering Plants › In a guard cell, which wall is highly thickened?
In a guard cell, which wall is highly thickened?
AThe outer wall
BThe inner wall
CThe upper wall
DThe lower wall
Answer & Solution
Correct answer: B. The inner wall
1. The two walls of a guard cell are built differently from each other.
2. The wall away from the stomatal pore stays thin.
3. The wall towards the stomatal pore is highly thickened.
_Source: NCERT Class 11 Biology, Ch 6 'Anatomy of Flowering Plants'_
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