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What are the forces that maintain the co...

What are the forces that maintain the continuity of water column during ascent of sap?

A

Evaporation of water

B

Cohesive property of water

C

Pressure of air bubbles in water

D

Small size of xylem vessles .

Text Solution

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The correct Answer is:
D
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DINESH PUBLICATION ENGLISH-TRANSPORT IN PLANTS-REVISION QUESTIONS FROM COMPETITIVE EXAMS
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  2. Which of the following is not correct mass flow hypothesis

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  4. Guttation is a process of loss of water in

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  5. The apoplast is located

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  6. Match and find the correct option {:((a), "Water potential",(i),"It...

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  7. Which of the following statements about plasmolysis is/ are ture I. P...

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  8. Above this minimum vertical distance, the gravity potential is not neg...

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  9. Imbibition involves

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  10. The major solute taken in by guard cells is Na^(+)

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  11. Water potential of soil quantified in term of

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  12. Identify the wrong statement .

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  13. Find the correct pair of statements (i) Influx of Cl- into guard ce...

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  14. Arrange the following in ascending order based on their solute concent...

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  15. Photosynthates are translocated from source to sink organs mainly in t...

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  16. The movement of water and minerals in xylem and the movement of phloem...

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  17. In the given diagram, which is the initial condition of plasmolysis

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  18. Water exudation through hydathodes is

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  19. Apoplast movement of water occurs through:

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  20. In plants opening of stomata is regulated by

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