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Transport in Plants
Question
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Which of the following elements is responsible for maintaining turgor in cells?

  • Magnesium

  • Sodium

  • Calcium

  • Potassium

Answer

D.

Potassium

Potassium helps in maintaining turgidity of cells. Plants require potassium ion (K+) for protein synthesis and for the opening and closing stomata, which regulated by proton pumps to make surrounding guard cell either turgid or flaccid.

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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?