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Ascent of sap is best explained by...

Ascent of sap is best explained by

A

mass (bulk) flow

B

pulsation theory

C

root pressure

D

cohesion-tension transpiration pull.

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The correct Answer is:
D
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NCERT FINGERTIPS-TRANSPORT IN PLANTS-Transport In Plants
  1. Select the option which correctly satisfies the same relationship. S...

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  2. Which of the following statements is incorrect?

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  3. Ascent of sap is best explained by

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  4. The transpiration-driven ascent of xylem sap depends mainly upon"" pro...

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  5. Loss of water in the form of vapours from the living tissues of aerial...

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  6. Refer to the given figure Select the correct statement regarding ...

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  7. Amphistomatic leaf with stomata distributed equally on both the surfac...

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  8. The given figure shows two states of a stomata In which of the ...

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  9. Refer to the given figure and select the option which correctly identi...

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  10. Match columnI with column II and select the correct option from the co...

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  11. Water moves up against gravity and even for a tree of 20mheight the ti...

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  12. The bulliform cells of leaves lose their turgidity during excessive

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  13. Match column I with column II and select the correct option from the c...

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  14. Concentration of minerals in the soil is usually "" than the concentra...

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  15. Which of the following statements is correct ?

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  16. Which of the following elements are most readily mobilised?

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  17. Statement 1: Xylem transport is unidirectional. Statement 2: Phloem ...

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  18. Unidirectional flow of water minerals, some organic nitrogen and hormo...

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  19. The manufactured food in a green plant moves from the leaves to other ...

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  20. Multi-directional flow of a variety of organic and inorganic solutes o...

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