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The energy source that mainly drives the...

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

A

light

B

sucrose

C

solar heat

D

glucose

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The correct Answer is:
C
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TRUEMAN BIOLOGY-TRANSPORT IN PLANTS-Multiple Choice Questions
  1. Root pressure is maximum when

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

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

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  4. According to Dixon and Jolly's Cohesion Theory the channel for ascent...

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

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

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

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

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  9. Cohension transpiration pull theory operates in

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

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

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  12. Water lost by transpiration is

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

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

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  15. Sunken stomata are mainly seen in leaves of

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

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  17. Main function of lenticel is

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

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  19. Transpiration in plants is

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  20. Transpiration from the plants would be most rapid when

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