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What role cohesion and adhesion play in ...

What role cohesion and adhesion play in xylem transport?
(a) Like transpiration, they create a tension
(b) Like root pressure, they create a positive pressure
(c) Like sugars, they cause water to enter xylem
(d) They create a continuous water column in xylem

A

Like transpiration, they create a tension

B

Like root pressure, they create a positive pressure

C

Like sugars, they cause water to enter xylem

D

They create a continuous water column in xylem

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The correct Answer is:
D
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ICSE-TRANSPORT IN PLANTS -TEST YOUR PROGRESS (OBJECTIVE TYPE QUESTIONS )
  1. Exudation

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  2. In scotoactive opening, stomata remain open during (a) day (b) night...

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  3. Stomata open at night and close during day in (a) succulents (b) ...

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  4. Water potential is affected by: (a) osmotic potential (b) matric po...

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  5. Stomata are usually open (a) at night, when the plant requires a suppl...

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  6. What role cohesion and adhesion play in xylem transport? (a) Like tran...

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  7. The lon involved in stomatal movement is:

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  8. What is the action spectrum of transpiration? (a) Blue and infra red ...

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  9. Flowers cut under water remain fresh for a long time because :

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  10. Opening and closing of stomata is due to the : -

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  11. Transpiration may be :

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  12. In a fully turgid cell, what is equal to zero? (a) Turgor pressure (...

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  13. Energy source responsible for upward flow of water is: (a) sun energy ...

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  14. Which does not cause stomatal opening?

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  15. The food is translocated in: (a) downward direction (b) upward direc...

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  16. Minerals enter a plant mainly by (a) diffusion (b) pressure flow (...

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  17. Active transport from outside to inside of molecules across a membrane...

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  18. Minerals are absorbed in

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  19. Which one of the following will not directly affect transpiration?

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  20. Which of the following is an example of imbibition

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