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[A]: Phloem is the main conducting tissu...

[A]: Phloem is the main conducting tissue.
[R]: Phloem does the· function of conduction of water.

A

If both A and R are true and R is the correct explanation of A

B

If both A and R are true but R is not the correct explanation of A

C

If A is true and R is false

D

If both A and R are false

Text Solution

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The correct Answer is:
A
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TRUEMAN BIOLOGY-Plant Physiology -ASSERTION AND REASON
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  2. Assertion. Submerged plants get carbon dioxide in the form of carbona...

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  3. [A]: Phloem is the main conducting tissue. [R]: Phloem does the· fu...

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  4. [A]: Antitranspirants are used to retard tran- spiration. [R]: AbA ...

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  5. [A]: Rate of transpiration is high in low wind velocity. [R]: Wind r...

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  6. [A]: The rate of transpiration is indirectly pro- portional to RH. [...

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  7. [A]: High pH in guard cells activate phosphorylase to convert starch i...

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  8. [A]: Daily periodicity of stomata! movement is not the characteristic ...

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  9. [A]: In Nepenthes, lamina is modified to cap- ture insects to get nitr...

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  10. [A]: The downward· movement of minerals through soil is effected by qu...

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  11. [A]: Auxins are found in large amounts in the apical Meristem of shoot...

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  12. [A]: In C4 plants, CO2 fixation occurs at three sites. [R]: CO2 is f...

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  13. [A]: Oxidation of H2O takes place during pho- tosynthesis. [R]: Ph...

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  14. [A]: The rate of photosynthesis is determined in terms of the rate of ...

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  15. [A]: The energy capturing part of photosynthesis occurs in thylakoid m...

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  16. [A]: The light dependent reactions occur in thylakoids. [R]: In thyl...

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  17. [A]: Tropical movements occuring in response to water stimulus are cal...

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  18. [A]: The evolution of molecular oxygen is con- cerned with photosystem...

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  19. [A]: Hill and Bendall proposed Z-scheme and suggested that photosystem...

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  20. [A]: Rhizobial aggregates have been ob- served at distinct sites on cu...

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