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Stomata in angiosperms open and close du...

Stomata in angiosperms open and close due to ........

A

their genetic constitution

B

effect of hormones

C

changes of turgor pressure in guard cells

D

pressure of gases inside the leaves

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CHETANA PUBLICATION-PLANT WATER RELATION-Exercise
  1. Minimum transpiration is found in ..........

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  2. Wilting appears due to excessive............

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  3. Stomata in angiosperms open and close due to ........

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  4. Which of the following is the most likely cause for wider opening of s...

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  5. Transpiration pull will be maximum under which of the following condit...

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  6. In which of the following situation, the stomata transpiration exhibit...

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  7. In hypertonic solution, the water potential of a cell...........

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  8. A cell is plasmolyzed after being kept in a hypertonic solution. What ...

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  9. Water is absorbed when outside solution is ...........

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  10. Osmosis involves ........

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  11. Which of the following is against concentration gradient?

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

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  13. If cells completely lack turgor pressure, they are said to be ...........

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  14. Larger molecules (bulk flow?) are taken into cell by ...............

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  15. Root hair will absorb water when external solution is........

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  16. Absorption of water involving the activity of root is called.............

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  17. Uptake of water at the expenses of metabolic energy is known as..........

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  18. Which of the following is the major source of water for land plants?

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  19. Maximum transpiration occurs through ......

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  20. Water in plants rises through.........

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