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In guard cells when sugar is converted i...

In guard cells when sugar is converted into starch the stomatal pore

A

Closes completely

B

Opens partially

C

Opens fully

D

Remains unchanged

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Verified by Experts

The correct Answer is:
A
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DINESH PUBLICATION ENGLISH-TRANSPORT IN PLANTS-REVISION QUESTIONS FROM COMPETITIVE EXAMS
  1. Element involed in stomatal regulation, its opening and closing is

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  2. At constant temperature, the rate of transpiration will be higher at

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  3. In guard cells when sugar is converted into starch the stomatal pore

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  4. Guttation occurs in well watered herbaceous plants of well drained soi...

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  5. Water will be absorbed by root hairs when the external medium is

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  6. Root hairs are found in the zone of :

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  7. Root cap has no role in water absorption because

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  8. Root pressure is maximum when

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  9. Path of water movement from soil to exarch xylem is

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  10. Which fraction of soil water is available to plants for absorption by ...

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  11. Rate of water absorption can be increased through (a) Decreased trans...

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  12. Water in plants is transported by or ascent of sap take place through

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  13. The most widely accepted theory of ascent of sap in trees is

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  14. Water rises in the stem due to

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  15. According to one vital force theory, ascent of sap is due to active pu...

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  16. At what time, the stomatal transpiration is completely stopped

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  17. Upward movement of water through xylem is best explained by (a) Cohes...

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  18. The principal pathway of water translocation in angiosperms is

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  19. The cohesive force bof water is due to

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  20. When pheloem is removed by girdling

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