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[A]: Plasmolysis is seen by both living ...

[A]: Plasmolysis is seen by both living and dead cells.
[R]: Both types of cell are impermeable

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

Verified by Experts

The correct Answer is:
D
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TRUEMAN BIOLOGY-Plant Physiology -ASSERTION AND REASON
  1. [A]: Senescence effect can be reversed by cytokinin. [R]: The loss ...

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  2. [A]: Wilting occurs due to loss in turgidity. [R]: Turgor pressure c...

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  3. [A]: Plasmolysis is seen by both living and dead cells. [R]: Both ty...

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  4. [A]: The water is absorbed by the root and moves into the stem. [R]...

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  5. [A]: Sulphur stabilizes protein structure. [R]: It does not partici...

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  6. [A]: Stomata remain open during day [R]: Stomata help in gaseous exc...

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  7. [A]: The nitrogen content of the plant cannot be detected accurately b...

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  8. [A]: Submerged plants get CO2 in the form of carbonates and bicarbonat...

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

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

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  11. Assertion. Calcium deficiency symptoms first appear in the apical regi...

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  12. Assertion: Deficiency of sulpur causes chlorosis in plants Reason : ...

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  13. Assertion : Water and mineral uptake by root hairs from the soil occur...

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  14. [A]: Stomata open when guard cells have more H^+ . [R]: Increased K^+...

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  15. [A]: In washed beet root cylinders, betacyanin pigment does not come o...

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  16. [A]: Rate of transpiration is directly propor- tional to relative humi...

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  17. [A]: Root cells have lower OP than leaf cells. [R]: Root cells have...

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  18. [A]: Root pressure is largely responsible for ascent of sap in harbace...

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  19. [A]: The nodulated bacteria fix nitrogen in the presence of leg Hb. ...

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  20. [A]: Plants growing under trees show less photosynthesis. [R]: Gree...

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