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Transpiration is a necessary evil in pla...

Transpiration is a necessary evil in plants. Explain

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Refer .Significance of transpiration., of Chapter - 11, page 679.
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MODERN PUBLICATION-TRANSPORT IN PLANTS-REVISION EXERCISES (SHORT ANSWER QUESTIONS)
  1. What is the role of K^(+) ions in the opening of stomata?

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  2. Discuss the pathways by which water moves into root.

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  3. Transpiration is a necessary evil in plants. Explain

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  4. Differentiate between passive and active water absorption.

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  5. The movement of water through the root layers is ultimately symplastic...

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  6. Differentiate between TP and WP. How do changes in TP helps in opening...

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  7. What are guard cells. Describe the structure of typical guard cells.

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  8. Define the terms : Plasmolysis, deplasmolysis, endosmosis and exosmosi...

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  9. Write a note on guttation.

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  10. Write the importance of osmosis in plants.

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  11. Write the importance of imbibition.

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  12. What is root pressure? How is it demonstrated experimentally?

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  13. Give advantages of transpiration.

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  14. What are the two kinds of interactions of water molecues that allow wa...

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  15. How do potassium ions (K^+) regulate the opening and closing of stomat...

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  16. What is guttation? Name the pore through which guttation occur. What d...

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  17. What are antitranspirants? Give examples . How do they reduce transpir...

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  18. Discuss Dixon's cohesion tension theory of ascent of sap.

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  19. Describe K^(+) ion theory for opening and closing of stomata.

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  20. Discuss Dixon's theory of ascent of sap.

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