NEET2017Botany-Plant Physiology
NEET 2017 Botany Stomatal Movement MCQ Question
Type: MCQ-conceptual-Medium-Class 11
Which of the following facilitates opening of stomatal aperture?
A
Contraction of outer wall of guard cells
B
Decrease in turgidity of guard cells
C
Radial orientation of cellulose microfibrils in the cell wall of guard cells
D
Longitudinal orientation of cellulose microfibrils in the cell wall of guard cell
Correct Answer
Option C
Detailed Explanation
Radial orientation of cellulose microfibrils allows the guard cells to expand laterally, facilitating the opening of the stomatal aperture.
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