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Water column does not repture during as...

Water column does not repture during ascent in tracheary elemants due to

A

Weak gravitationl pull

B

Tranpiration pull

C

Lignified thick walls

D

Cohesion and adhesion

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The correct Answer is:
D
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DINESH PUBLICATION-TRANSPORT IN PLANTS-REVISION QUESTIONS FROM COMPETITIVE EXAMS
  1. Thin and elastic walls of guard cells are

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  2. Colligative property is 1.Osmotic pressure 2. Vapour pressure 3.Cohes...

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  3. Water column does not repture during ascent in tracheary elemants due...

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  4. Stomata open when guard cells swell due to

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  5. Transpiration facilitates

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  6. An RBC and a plant cell having same O.P. are placed in distilled water...

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  7. Which of the following would be in insignificant amount in xylem sap

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  8. Which pathway involves cell wall and intercellular spaces?

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  9. Efflux of K^(+) and Cl'will cause

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  10. Water potential increases due to

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  11. Most of the water flow in the root takes place via the apoplast becaus...

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  12. For the same amount CO(2) fixed s C(4) plant, in comparison with a C(3...

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  13. In the cell walls of the guard cells, cellulose microfibrils are orien...

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  14. Grahm's law is connected with

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  15. Select the correct events leading to the opening of the stomata (i) ...

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  16. Water potentials of pure water and its soultion are

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  17. Bacteria cannot survive in a highly salted pickle because

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  18. What happens when concentration of solutes decreses in guard cells

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  19. Force of cohesion develops due to

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  20. Major loss of water in transpiration occurs through

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