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Active absorption of water by roots fro...

Active absorption of water by roots from the soil is mainly affected by

A

Tension in cell sap due to transpiration

B

Hydrophobic nature of root hair

C

Typical tissue organisation

D

Osmotic concentration of xylem sap.

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The correct Answer is:
C
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DINESH PUBLICATION ENGLISH-TRANSPORT IN PLANTS-REVISION QUESTIONS FROM COMPETITIVE EXAMS
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  2. 2% NaCl as compared to 18% glucose solution is

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  4. The space between plasma membrane and cell wall of a plasmolysed cell ...

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  5. Which one of the following is not an antitranspirant

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  7. Which of the following get accumlated in vacuoles of guard cells duri...

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  8. Stomatal opening is influenced by

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  9. Given below are assertion and reason . Assertion . Water entering a pl...

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  10. Assertion . Movement of materials inside phloem is bidirectional, both...

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  11. The relationship piv=nRT is not obeyed by

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  12. Phloem sap is mainly composed of

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  13. Measurements reveal that the forces generated by transpiration can cre...

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  14. Guttaion differs from transpiration in which aspect ?

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  15. The ability to rise in thin tubes and Ability to resist a pulling forc...

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  16. Which of the following is not the purpose of transpiration

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  17. An osmometer is filled with 0.5 M solution of NaCl in water. In which ...

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  18. Stomata open by

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  19. Correct pathway of water movement in plant roots is

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  20. Which growth hormone is associated with stomatal movements

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