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Biology · PYQ NEET UG 2017

हिन्दी

Which of the following facilitates opening of stomatal aperture?

  1. A
    Contraction of outer wall of guard cells
  2. B
    Decrease in turgidity of guard cells
  3. C
    Radial orientation of cellulose microfibrils in the cell wall of guard cells
  4. D
    Longitudinal orientation of cellulose microfibrils in the cell wall of guard cells
View Answer & Solution

Correct answer · Option C

Radial orientation of cellulose microfibrils in the cell wall of guard cells

Explanation

The radial orientation of cellulose microfibrils in the cell wall of guard cells facilitates the outward pulling during turgidity increase, causing stomatal opening.

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