Home
Class 12
BIOLOGY
[A]: Light is very important external fa...

[A]: Light is very important external factor of transpiration.
[R]: Light induces stomata! opening and darkness stomata! closure. Thus the rate of transpiration increases in light and de- creases in dark.

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:
A
Promotional Banner

Topper's Solved these Questions

  • Plant Morphology & Reproduction

    TRUEMAN BIOLOGY|Exercise ASSERTION AND REASON|59 Videos

  • PRINCIPLES OF INHERITANCE AND VARIATIONS

    TRUEMAN BIOLOGY|Exercise MCQs|322 Videos

Similar Questions

Explore conceptually related problems

Assertion:Light is very important factor in transpiration. Reason:It induces stomatal opening and darkness closing.Therefore, transpiration increases in light decreases in dark .

Assertion : Light plays an important role in process of transpiration. Reason : Light leads to opening of stomata and in dark stomata get closed.

How is the rate of transpiration affected by intensity of light and temperature?

Assertion Rate of transpiration is measured by Ganong 's photopmeter Reason Rate of transpiration decreases in light andn incrases in dark

factors affecting opening OF stomata and rate OF transpiration

(A) : Light is an important abiotic factor. (R) : Life is not possible without light.

Assertion : Stomate generally open in light and close in dark. Reason : Transpiration is enhanced by heating effect of light.

TRUEMAN BIOLOGY-Plant Physiology -ASSERTION AND REASON
  1. [A]: Hill and Bendall proposed Z-scheme and suggested that photosystem...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  9. [A]: Due to excessive use of fertilizers, the available water to the p...

    Text Solution

    |

  10. [A]: Vernalization is also called as yarovization. [R]: In short day...

    Text Solution

    |

  11. [A]: Fundamental factor in the vernalization is low temperature. [R...

    Text Solution

    |

  12. [Aj: ABA plays an important role in plants during water stress and dro...

    Text Solution

    |

  13. (A]: Cytokinins help in retention of cholorophyll and delayed senescen...

    Text Solution

    |

  14. [A]: The germination of lettuce seeds is stimulated by red light and i...

    Text Solution

    |

  15. [A]: The far-red form of the phytochromes ab- sorb light at 740 nm. ...

    Text Solution

    |

  16. [A]: Elongation and division of cells are pro- moted by gibberellins. ...

    Text Solution

    |

  17. [A]: Senescence effect can be reversed by cytokinin. [R]: The loss ...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |