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Root pressure is maximum when...

Root pressure is maximum when

A

Transpiration is very high and absorption is high

B

Transpiration is low and absorption is low

C

Transpiation is high and absorption is low

D

Transpiration is very low and absorption is low

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The correct Answer is:
D
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DINESH PUBLICATION ENGLISH-TRANSPORT IN PLANTS-REVISION QUESTIONS FROM COMPETITIVE EXAMS
  1. Energy source responsible for upward flow of water is: (a) sun energy ...

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  2. In a fully turgid cell

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  3. Root pressure is maximum when

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  4. Guard cell regulate

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  5. Which ones show physiological process called "necessary evil" (a) Poto...

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  6. Study the following table showing the components of water potential in...

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  7. Ionic flux of guard cells directly connected with expenditure of energ...

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  8. Which ones regulate stomatal movements (a) IAA (b) GA (c) Zeatin (D) A...

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  9. Thin and elastic walls of guard cells are

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  10. Colligative property is 1.Osmotic pressure 2. Vapour pressure 3.Cohes...

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  11. Water column does not rupture during ascent in tracheary elements due...

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  12. Stomata open when guard cells swell due to

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  13. Transpiration facilitates

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  14. An RBC and a plant cell having same O.P. are placed in distilled water...

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  15. Which of the following would be in insignificant amount in xylem sap

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  16. Which pathway involves cell wall and intercellular spaces?

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  17. Efflux of K^(+) and Cl^-will cause

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  18. The water potential increases due to

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  19. Most of the water flow in the root takes place via the apoplast becaus...

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  20. For the same amount CO(2) fixed C(4) plant, in comparison with a C(3) ...

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