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Transport In Plants

Question

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Which of the following facilitates opening of stomatal aperture?

Contraction of outer wall of guard cells

Decrease in turgidity of guard cells

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

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

Solution

C.

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

Some More Questions From Transport in Plants Chapter

Give the term for the ability to resist a pulling force.

Who introduced the apoplast—symplast concept ?

Why transpiration is more on lower surface than on upper surface of leaves ?

Give the term for the ability to rise in thin tubes.

What is capillarity ?

Name the two forces responsible for the rise of water in a capillary tube.

Which force is first operative in translocation of water through capillarity : cohesive force or adhesive force ?

Name the driving force for water movements in plants.

What are the two factors which affect osmosis?

What is the condition of having more stomata on the lower surface called?

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