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Question
Which of the following facilitates opening of stomatal aperture?
Which of the following facilitates opening of stomatal aperture?
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Solution
The correct option is C Radial orientation of cellulose microfibrils in the cell wall of guard cells
Each stoma is composed of two bean shaped cells known as guard cells. The outer walls of guard cells (away from the stomatal pore) are thin and the inner walls (towards the stomatal pore) are highly thickened. The radial orientation of cellulose microfibrils in the cell wall of guard cells regulate the opening and closing of stomatal apperture. When guard cells become turgid, the curvature of the cells increase opening the stomatal aperture.
Each stoma is composed of two bean shaped cells known as guard cells. The outer walls of guard cells (away from the stomatal pore) are thin and the inner walls (towards the stomatal pore) are highly thickened. The radial orientation of cellulose microfibrils in the cell wall of guard cells regulate the opening and closing of stomatal apperture. When guard cells become turgid, the curvature of the cells increase opening the stomatal aperture.
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