Stomata Recommended PYQs (STRICTLY NCERT Based) Transport in Plants (OLD NCERT) Botany NEET Practice Questions, MCQs, Past Year Questions (PYQs), NCERT Questions, Question Bank, Class 11 and Class 12 Questions, and PDF solved with answers

Which of the following facilitates opening of stomatal aperture?

1.	Decrease in turgidity of guard cells
2.	Radial orientation of cellulose microfibrils in the cell wall of guard cells
3.	Longitudinal orientation of cellulose microfibrils in the cell wall of guard cells
4.	Contraction of outer wall of guard cells

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Opening and closing of stomata are due to the:

1. Hormonal change in guard cells

2. Change in Turgor pressure of guard cells

3. Gaseous exchange

4. Respiration

Subtopic: Stomata |

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