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Which one gives the most valid and recen...

Which one gives the most valid and recent explanation for stomatal movements?

A

Guard cells photosynthesis

B

Starch hydrolysis theory

C

Porassium influx and efflux

D

Transpiration .

Text Solution

Verified by Experts

The correct Answer is:
C
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DINESH PUBLICATION ENGLISH-TRANSPORT IN PLANTS-REVISION QUESTIONS FROM COMPETITIVE EXAMS
  1. Guttation is mainly due to

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  2. Which one of the following plants keep its stomata open during the nig...

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  3. Which one gives the most valid and recent explanation for stomatal mov...

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  4. The stomatal type of cereals which open only for a few hours during th...

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  5. In most of the thin leaf mesophytes, the leaf stomata open during day ...

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  6. Rate of transpiration is dependent upon

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  7. On a hot summer day cooling of plant occurs due to

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  8. Conversion of starch to organic acids is required for

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  9. Element involed in stomatal regulation, its opening and closing is

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

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

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

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

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  14. Root hairs are found in the zone of :

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  15. Root cap has no role in water absorption because

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  16. Root pressure is maximum when

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

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

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

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

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