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Which of the following in guard cell is ...

Which of the following in guard cell is responsible for opening of stomata ?

A

Decrease in `CO_(2)`concentration and decrease in `H^+`ion concentration

B

Increase in `CO_(2)`concentration and increase in `H^+`ion concentration

C

More free `H^+`ion and less `Cl^-`ion

D

More free`H^+`ion and more `Cl^-`ion

Text Solution

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The correct Answer is:
B
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MBD PUBLICATION-Transport in plants-Question Bank
  1. Passive absorption of water by the root system is the result of:

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  2. The rate of transpiration will be very less in situation where:

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  3. Which of the following in guard cell is responsible for opening of sto...

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  4. Which of the following is used as an antitranspirant ?

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  5. Water is lost in a liquid state in some plants through hydathodes. The...

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  6. Exudation of sap at the end of stem is a manifestation ofpressure.

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  7. 0.5 M NaCl solution hasosmotic pressure than 0.5 M sucrose solution...

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  8. A cell placed in a hypertonic solution 'will show (endosmosis/exosmos...

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  9. Mineral nutrients required for plant growth and development and their ...

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  10. The water potential and osmotic potential of pure water at normal atmo...

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  11. Organic food materials in plants are translocated through .

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  12. The pressure exerted by cell wall to balance turgor pressure is called...

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  13. In the thermodynamic terminology the osmotic pressure is equivalent to...

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  14. When a cell is placed in hypotonic solution, water moves into the cell...

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  15. The form and structure of growing cell are maintained because of.

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  16. A membrane which permits selective movement of molecules through it , ...

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  17. DPD in thermodynamic terminology is known as .

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  18. The water potential and osmotic potential of pure water at normal atmo...

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  19. Phenomenon of plasmolysis occurs when:

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  20. Water potential and osmotic potential of pure water is:

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