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Ascent of sap in plants explains...........

Ascent of sap in plants explains..............

A

diffusion of water

B

loss of water from leaves

C

the vertical rise of water in stem against the force of gravity

D

building up of organic food

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CHETANA PUBLICATION-PLANT WATER RELATION-Exercise
  1. Casparian strips are located in ...............

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  2. The water absorption through the roots due to transpiration pull is ca...

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  3. Ascent of sap in plants explains..............

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  4. Water in plants is transported by ..........

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  5. Root pressure is maximum when ..................

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  6. Root pressure is absent in .............

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  7. The absorbed water can rise to highest point by ........

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  8. The mechanism by which water moves from roots to leaves is called........

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  9. The force responsible for raising water in 100 ft tall plant is .........

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  10. Cohesive force of water is between .......

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  11. Transpiration- cohesion - tension theory operates in ............

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  12. Rate of water absorption can be increase through ........

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  13. Rate of water absortion is slow near freezing point because ..........

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  14. Which of the following is called necessary evil?

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  15. "Transpiration is a necessary evil" was given by .... .....

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  16. Transpiration occurs in ..........

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  17. In plants, the process of transpiration helps in ..........

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  18. In lenticular transpiration, loss of H2O in the form of water vapour i...

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  19. Which of the following is not a the type of transpiration ?

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  20. The rate of transpiration is practically nil during ............

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