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[A]: In Nepenthes, lamina is modified to...

[A]: In Nepenthes, lamina is modified to cap- ture insects to get nitrogenous food.
[R]: The plant proteins are broken down to amino acids and then absorbed by plant.

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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Proteins are broken down into amino acids in -

Proteins are broken down into amino acids in-

Assertion . Lamina is modified into pitcher in Nepenthes to caputre insects for nitrogenous food. Reason. They lack chlorophyll and are not green in colour.

You have heard about several insectivorous plants that feed on insects. Nepenthes or the pitcher plant is one such example, which usually gorws in shallow water or in marsh lands. What part of the plant is modified into a pitcher ? How does this modification help the plant for food even through it can photosynthesise like any other green plant ?

$ Insectivorous plants get nitrogenous nutrition from the insects. IAA is growth promoter.

[A]: Senescence is induced by the applica- tion of cytokinin in plants. [R]: Cytokinin promotes the breakdown of chlorophyll, proteins and nucleic acid.

Fill in the following black with suitable words : When the digestion of food is completed, the carbohydrates get broken down into _____, protein into ______,and fats into _____ and _____.

TRUEMAN BIOLOGY-Plant Physiology -ASSERTION AND REASON
  1. [A]: High pH in guard cells activate phosphorylase to convert starch i...

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

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

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

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

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

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

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

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

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

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

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

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

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

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  15. [A]: Light is very important external factor of transpiration. [R]:...

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  16. [A]: Wax, resin and suberin coating on the surface of plant parts redu...

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  17. [A]: Gibberellic acid when added to isolated aleurone layer, induces a...

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  18. Assertion : Auxillary buds, in actively growing herbaceous plants, gen...

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  19. Assertion : If you burn a plant , its nitrogen component is given of...

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  20. [A]: Amino acids are converted into ammonia by a group bacteria called...

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