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Transport In Plants

Question
CBSEENBI11002305
Wired Faculty App

Which one gives the most valid and recent explanation for stomatal movements?

  • Transpiration

  • Potassium influx and efflux

  • Starch hydrolysis

  • Guard cell photosynthesis

Solution

B.

Potassium influx and efflux

Levitt in 1954 proposed active potassium transport theory, which is the most valid and recent explanation for stomatal movements. It is explained below as:

Some More Questions From Transport in Plants Chapter

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? 

Name the plant having more stomata on lower surface than on upper surface.

Name the plant having equal number of stomata on both surfaces.

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