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A column of water within xylem vessels o...

A column of water within xylem vessels of tall trees does not break under its weight because of

A

Positive root pressure

B

Dissolved sugar in water

C

Tensile strength of water

D

Lignification of xylem vessels

Text Solution

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The correct Answer is:
C
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AAKASH INSTITUTE-TRANSPORT IN PLANTS -Assignment (Section C) Previous Year Questions
  1. Water vapour comes out from the plant leaf through the stomatal openin...

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  2. Root pressure develops due to

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  3. A column of water within xylem vessels of tall trees does not break un...

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  4. Transpiration and root pressure cause water to rise in plants by

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  5. In a ring girdled plant :

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  6. Which one gives the most valid and recent explanation for stomatal mov...

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  7. Which of the following criteria does not pertain to facillatated trans...

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  8. Lenticels are involved in

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  9. Guttation is the result of

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  10. Which one of the following structures between two adjacent cells is an...

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  11. Given below is the diagram of a stomatal apparatus . In which of the f...

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  12. Guard cells help in

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  13. The rupture and fractionation do not usualy occur in the water column ...

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  14. Two cells A and B are contiguous. Cell A has osmotic pressure 10 atm, ...

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  15. The translocation of organic solutes in sleve tube membres is supportt...

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  16. Potometer works on the principle of

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  17. When water enters in roots due to diffusion, it is termed as

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  18. When water moves through a semipermeable membrane, which of the follow...

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  19. When a cell is fully turgid, which of the following will be zero The...

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  20. If turgidity of a cell surrounded by water increases, the wall pressur...

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