Transport in plantsMedium
Question
In the given figure, which component has thin outer walls and highly thickened inner walls?
Options
A.A
B.B
C.C
D.D
Solution
Sol. [Key Concept: Guard cell wall thickness]
C denotes a guard cell. Its wall facing the stomatal pore is thicker and less extensible than its outer wall. This unequal wall thickness helps the pore open when guard cells become turgid. Hence, option (3) is correct.
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