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Guard cells help in...

Guard cells help in

A

Protection against grazing

B

Transpiration

C

Guttation

D

Fighting against infection

Text Solution

Verified by Experts

The correct Answer is:
B
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MODERN PUBLICATION-TRANSPORT IN PLANTS-COMPETITION FILE (MULTIPLE CHOICE QUESTIONS)
  1. Plasmolysis is the result of

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  2. A cell, when kept in sugar solution, gets dehydrated. Then, the soluti...

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  3. Guard cells help in

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  4. Cell A has osmotic potential of -18 bars and pressure potential of 8 b...

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  5. In the leaves, veins are useful for

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  6. Accumulation of which one of the following acids results in closure of...

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  7. Which one of the following is not a characteristic of active transport...

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  8. Water in the soil available to plants is :

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  9. When a cell is plasmolysed, it becomes

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  10. The factor, most important in regulating transpiration, is

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  11. The process by which water is absorbed by solid like colloids causing ...

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  12. Select the correct statement

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  13. Phloem sap is mainly made of

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  14. Force generated by transpiration can create pressure sufficient to lif...

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  15. Which growth hormone is asscoiated with stomatal movemants

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  16. Consider the following statements with reference to facilitated transp...

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  17. Which of the following is not a purpose of transpiration

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  18. Osmotic pressure of pure water is

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  19. When turgidity is lost in guard cells the stomatal pore

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  20. The osmotic expanison of a cell kept in water is chiefly regulated by

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