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Water vapour comes out from the plant le...

Water vapour comes out from the plant leaf through the stomatal opening . Through the same stomatal opening carbon dioxide diffurses into the plant during photosynthesis Reason out the above statements using one of following options

A

Both processes cannot happen simultaneously.

B

Both processes can happen together because the diffusion coefficient of water and `CO_(2)` is different.

C

The above processes happen only during night time.

D

One process occurs during day time, and the other at night.

Text Solution

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The correct Answer is:
B
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MODERN PUBLICATION-TRANSPORT IN PLANTS-COMPETITION FILE (MULTIPLE CHOICE QUESTIONS)
  1. Water potential gradient between the absorbent and the liquid imbibed ...

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  2. Which of the following is not correct in mass flow hypothesis ?

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  3. Water vapour comes out from the plant leaf through the stomatal openin...

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  4. Specialised epidermal cells surrounding the guard cells are called

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  5. A few drops of sap were collected by cutting across a plant stem by a ...

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  6. The water potential of pure water is

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  7. Root hairs develop from the region of

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  8. Which of the following facilitates opening of stomatal aperture?

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  9. Stomata in grass leaf are

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  10. If the concentration of external solution is more than the cytoplasm, ...

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  11. Water is released as droplet this is known as :

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  12. Stomata of a plant open due to

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  13. Plasmodemata connections help in

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  14. Dumb-bell shaped guard cells are found in

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  15. Wilting in plants occurs when

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  16. A plant cell attains turgidity due to

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  17. Which one of the following theriores for ascent of sap was proposed b...

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  18. When a fresh-water protozoan possessing a contractile vacuole, is plac...

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  19. water reaches the top of a plant due to

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  20. A cell when dipped in 0.5 M sucrose solution has no effect but when th...

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