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Root pressure occurs due to...

Root pressure occurs due to

A

low DPD of leaves

B

high DPD of leaves

C

osmotic flow of water into xylem and absorbing part of root

D

imbibitional flow of water into xylem of absorbing part of root .

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The correct Answer is:
C
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Root pressure develops due to

[A]: Root pressure is largely responsible for ascent of sap in harbaceous plants. [R]: Root pressure develops due to DPD & is maintained by the living cells.

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TRUEMAN BIOLOGY-TRANSPORT IN PLANTS-Multiple Choice Questions
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  2. When soils are deficient in oxygen and have high proportion of salts o...

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  3. Root pressure occurs due to

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  4. To develop root pressure , energy is used to

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  5. Root pressure is maximum when

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  6. When aerial parts of a plant are cut the sap exudes from the root with...

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  7. The energy source that mainly drives the upward flow of water is

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  8. According to Dixon and Joly's Cohesion Theory the channel for ascent ...

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  9. In a branch cut from a rapidly transpiring plant , water snaps away fr...

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  10. The osmotic pressure of the leaf cells is maximum in the afternoon, th...

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  11. Root pressure does not take an active part in the ascent of sap becaus...

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  12. Cohension transpiration pull theory operates in

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  13. Which contributes most to the transport of water from the soil to the ...

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  14. Movement of H(2)O through cell wall is called

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  15. Water lost by transpiration is

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  16. Cobalt chloride is blue in anhydrous state . In contact with water va...

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  17. Which of the following amphistomatous leaves would dry up last ?

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  18. Sunken stomata are mainly seen in leaves of

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  19. In terrestial habitats , temperature and rain fall conditions are in...

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  20. Main function of lentical is

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