Question

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 microfibril in the cell wall of guard cells
• D. Longitudinal orientation of cellulose microfibrils in the cell wall of guard cells

Answer 1

Answer: (C)

Radial orientation of cellulose microfibrils in cell wall of guard cells help in opening of stomata.