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Most widely accepted explanation for the...

Most widely accepted explanation for the ascent of sap in tree is

A

Capillarity

B

Roll of atmospheric pressure

C

Pulsating action of living cells

D

Transpiration cohesion theory of Dixon

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The correct Answer is:
D
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ERRORLESS -TRANSPORT IN PLANTS-Transport In Plants
  1. Which of the following equations is correct in respect of osmotic phen...

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  2. Transpiration and root pressure cause water to rise in plants by

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  3. Most widely accepted explanation for the ascent of sap in tree is

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  4. A column of water within xylem vessels of tall trees does not break un...

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  5. Which of the following is not true for active transport

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  6. Upward movement of water in plants is called

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  7. Water will be absorbed by root hairs when

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  8. The factor or process which best explains the rise of water from roots...

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  9. The path of water from soil upto secondary xylem is

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  10. Physical force theory explains

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  11. The rupture and fractionation do not usualy occur in the water column ...

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

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  13. Bordered pits relating with water uptake located in

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

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  15. The given diagram shows the appearance of plant cell immersed in a sol...

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  16. Which of the following helps in the absorption of water and minerals s...

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  17. The given diagram indicates routes of transport of water and minerals ...

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  18. The movement of water from one cell of the cortex to the adjacent one ...

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  19. Given figure represents demonstration of osmosis by egg membrane osmos...

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  20. Passage cells are thin walled cells found in

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