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Cohension transpiration pull theory oper...

Cohension transpiration pull theory operates in

A

passive water absorption

B

active water absorption

C

conditions favouring guttation

D

conditions restricting transpiration

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The correct Answer is:
A
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TRUEMAN BIOLOGY-TRANSPORT IN PLANTS-Multiple Choice Questions
  1. Root pressure does not take an active part in the ascent of sap becaus...

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  2. In the given TS of root , what part A,B and C

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  3. Cohension transpiration pull theory operates in

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

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

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  6. Water lost by transpiration is

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

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

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  9. Sunken stomata are mainly seen in leaves of

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

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  11. Main function of lenticel is

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  12. Apart from stomata through which other way can oxygen enter the plants...

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  13. Transpiration in plants is

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  14. Transpiration from the plants would be most rapid when

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  15. When stomata open only at night they are called

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  16. Which of the following is not a function of transpiration ?

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  17. The high amount of malate in guard cells of open stomata accumulates b...

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  18. The lowest water potentials in the xylem are in the

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  19. Transpiration rate of a dorsiventral leaf is

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  20. Loss of water by cells without external sign of leaf drooping is calle...

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