Home
Class 12
BIOLOGY
[A]: Elongation and division of cells ar...

[A]: Elongation and division of cells are pro- moted by gibberellins.
[R]: Gibberellins increase the formation of hydrolytic enzymes that release energy nec- essary for growth

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|64 Videos
  • PRINCIPLES OF INHERITANCE AND VARIATIONS

    TRUEMAN BIOLOGY|Exercise MCQs|341 Videos

Similar Questions

Explore conceptually related problems

[A] : No energy can be released in the cell in the absence of mitochondria. [R] : Because all the enzymes of the cell respiration are present in it.

TRUEMAN BIOLOGY-Plant Physiology -ASSERTION AND REASON
  1. [A]: The germination of lettuce seeds is stimulated by red light and i...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  11. [A]: Submerged plants, get CO2 in-the form of CO3^(-) & HCO3^(-3) [R...

    Text Solution

    |

  12. [A]: The evolution of molecular oxygen is concerned with photosystem-1...

    Text Solution

    |

  13. [A]: Antitranspirants are material applied to plants for retarding tra...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  19. [A]: The rate of transpiration is indirectly proportional to RH. [R]...

    Text Solution

    |

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

    Text Solution

    |