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List any four mechanism that contribute ...

List any four mechanism that contribute to the ascent of sap in tall trees

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(a) Godlewski.s relay pump theory, (b) Root pressure theory, (c) Capillary theory, (d) Imbibition theory, (e) Transpiration pull theory.
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MODERN PUBLICATION-TRANSPORT IN PLANTS-REVISION EXERCISES (SHORT ANSWER QUESTIONS)
  1. Suggest two type of treatments for reducing transpiration in plants in...

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  2. What causes the leaves of the grasses to rol in dry weather?

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  3. List any four mechanism that contribute to the ascent of sap in tall t...

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  4. What is the role of K^(+) ions in the opening of stomata?

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

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  6. Transpiration is a necessary evil in plants. Explain

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  7. Differentiate between passive and active water absorption.

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

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

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

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

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  12. Write a note on guttation.

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  13. Write the importance of osmosis in plants.

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  14. Write the importance of imbibition.

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

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  16. Give advantages of transpiration.

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

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

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

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

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