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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

dissolved sugar in water

B

tensile strength of water

C

lignification of xylem vessels

D

positive root pressure

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The correct Answer is:
B
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ARIHANT NEET-TRANSPORT IN PLANTS -Chapter exercises C. Medical entrances gallery (Collection of questions asked in NEET & Various Medical Entrance Exams )
  1. Match the correct combination.

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  2. The number of stomatal pores per cm^(2) of leaf surface are in the ran...

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

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  4. Root pressure is due to

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  5. Water potential gradient between absorbent and the liquid imbibed is ...

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  6. The continuity of water column in xylem is maintaned due to

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  7. The apoplast is located

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  8. Guttation is a process of loss of water in

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  9. Swelling of wooden frames during rains is caused by

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  10. Layer of cells impervious to water because of a band of suberised matr...

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  11. When a cell is fully turgid which of the following will be zero

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  12. Guttation occurs through

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  13. Which of these is/are not a property of faciliated transport ? I. Re...

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  14. Special type of diffusion when water is absorbed by solids is called

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  15. When water moves out of the plant cell and the cell membrane of a plan...

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  16. Choose the wrong statement.

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  17. The osmotic expansion of cell kept in water is chiefly regulated by :

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  18. In a plant cell, the diffusion pressure deficit is zero when it is

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

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  20. Transpiration is measured by

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