Home
Class 12
BIOLOGY
Phytochrome is a...

Phytochrome is a

A

chemicals regulating flowering

B

chemicals regulating growth from seed to adulthood

C

hormones regulating growth from seed to adulthood

D

regulators synthesised by plants and influencing physiological process

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • PLANT GROWTH AND DEVELOPMENT

    ARIHANT NEET|Exercise CHAPTER EXERCISES (MEDICAL ENTRANCES SPECIAL FORMAT QUESTIONS )STATEMENT BASED|8 Videos

  • PLANT GROWTH AND DEVELOPMENT

    ARIHANT NEET|Exercise CHAPTER EXERCISES (MEDICAL ENTRANCES SPECIAL FORMAT QUESTIONS ) ASSERTION & REASON|7 Videos

  • PLANT GROWTH AND DEVELOPMENT

    ARIHANT NEET|Exercise CHAPTER EXERCISES (MEDICAL ENTRANCES GALLERY )|77 Videos

  • PLANT BREEDING AND TISSUE CULTURE

    ARIHANT NEET|Exercise Medical entrances gallery (Collection of questions Asked in NEET and Various Medical Entrance Exams)|44 Videos

  • PLANTAE

    ARIHANT NEET|Exercise Chapter Exercises (C Medical entrances gallery)|80 Videos

Similar Questions

Explore conceptually related problems

Consider the following statements and select the correct option stating which one is true(T) and which one is false (F) i) Vemalisation can help in shortening the juvenile or vegetative period of plant and bring early flowering ii) Phytochrome is a pigment protein complex which exists in two inter-convertible forms - P_r and P iii) Sugar beet flowers after getting the inductive cycle of long dark periods and short photoperiods iv) 2,4-D acts as weedicide to remove broad leaved weeds. V) Auxins promote growth of lateral buds whereas cytokinins inhibit it

Phytochrome is mainly involved in picking stimulus in

Phytochrome is used in

Phytochrome is involved in

Phytochrome is involved in

Phytochrome is found in

Phytochrome is responsible for

ARIHANT NEET-PLANT GROWTH AND DEVELOPMENT -CHAPTER EXERCISES ( TAKING IT TOGETHER )
  1. In the long dark phase

    Text Solution

    |

  2. Red far-red reversible photoreaction was first observed by

    Text Solution

    |

  3. Phytochrome is a

    Text Solution

    |

  4. The seat of synthesis and seat of action of 'florigen' is

    Text Solution

    |

  5. Devernalisation can be done by

    Text Solution

    |

  6. In annuals, the site of vernalisation is the

    Text Solution

    |

  7. Vernalisation treatment can be given to partially germinated seeds in ...

    Text Solution

    |

  8. The term 'Vernalin' was coined by

    Text Solution

    |

  9. The perception of stimulus of cold treatment vernalisation is received...

    Text Solution

    |

  10. In Oenothera, the chilling treatment is given to

    Text Solution

    |

  11. The biological clock measures the length at each night by the

    Text Solution

    |

  12. Pick up the correct match pair.

    Text Solution

    |

  13. Which one of the following statements is true for the phytochromes ?

    Text Solution

    |

  14. The term synergistic action of hormones refers to

    Text Solution

    |

  15. When an unripe banana is sealed in a polythene bag, it reamins green f...

    Text Solution

    |

  16. In the 1940s, Johannes van Overbeek stimulated growth in plant embryos...

    Text Solution

    |

  17. Arrange the following in the manner of decreasing auxin activity

    Text Solution

    |

  18. In the early part of this century, the Danish botanist Peter Boysen-Je...

    Text Solution

    |

  19. Mark the correct statements with respect to growth phases occuring in ...

    Text Solution

    |

  20. Read the following statements given below I. Permanent localised qua...

    Text Solution

    |