Home
Class 12
BIOLOGY
Function of filiform apparatus is to :- ...

Function of filiform apparatus is to :-
1. Guide the entry of pollen tube
2. Recognize the suitable pollen at sigma
3. Stimulate division of generative cell
4. Produce nectar

A

Guide the entry of pollen tube

B

Recognize the suitable pollen at sigma

C

Stimulate division of generative cell

D

Produce nectar

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • RESPIRATION IN PLANTS

    TRUEMAN BIOLOGY|Exercise MULTIPLE CHOICE QUESTIONS|194 Videos

  • STRATEGIES FOR ENHANCEMENT IN FOOD PRODUCTION

    TRUEMAN BIOLOGY|Exercise MCQ|220 Videos

Similar Questions

Explore conceptually related problems

Filiform apparatus is characteristic feature of : 1. generative cell 2. nucellar embryo 3. aleurone cell 4. synergids

Draw a longitudinal section of a post-pollinated pistil showing entry of pollen tube into a mature embryo-sac. Label filiform apparatus, chalazal end, hilum, antipodals male gametes and secondary nucleus .

Male gametophyte in angiosperms produces: 1. two sperms and a vegetative cell 2. single sperm and a vegetative cell 3. single sperm and two vegetative cells 4. three sperms

Besides providing pink colour to the root nodules, leghaemoglobin performs the function of 1. protecting enzyme nitrogenase from free oxygen 2. transporting nitrogen to host cells 3. protecting bacteroids from the enzymes of host cell 4. protecting leakage of fixed nitrogen to the soil atmosphere

Which of the following is a function of ADH. 1.Stimulating the interstitial cells of Leydig 2.Increase of heart rate 3.Stimulates glycogenesis 4.rises blood pressure

Which of the following statements is not correct 1. Insects that consume pollen or nectar without bringing about pollination are called pollen/nectar robbers 2. Pollen germination and pollen tube growth are regulated by chemical components of pollen interacting with those of the pistil 3. Some reptiles have also been reported as pollinators in some plant species 4. Pollen grains of many species can germinate on the stigma of a flower, but only one pollen tube of the same species grows into the style

A sweet pea plant with blue flowers and long pollens is test crossed. The progeny contains 300 plants with blue flowers and long pollens, 295 plants with red flower and round pollens, 80 plants with blue flower and round pollen and 85 plants with red flower and long pollens. This result is due to 1. linkage 2. segregation 3. independent assortment 4. linkage and crossing over

Identify the correct statements and find out the correct combination ? 1. Accumulation of K^(+) ions in guard cells does not require energy 2. A high pH favours stomatal opening 3. Movemant of chloride ions into guard cells is in response to electrical differential created by K^(+) ions 4. With entry of several K^(+) ions and chloride ions, water potential of guard cells increases .

Define the term 'intensity of radiation in photon picture of light. Ultraviolet light of wavelength 2270Å from 100W mercury source irradiates a photo cell made of a given metal. If the stopping potential is -1.3V, estimate the work function of the metal. How would the photon cell respond to a high intensity (~10^(5) W.m^(-2)) red light of wavelength 6300Å produced by a laser?

TRUEMAN BIOLOGY-SEXUAL REPRODUCTION IN FLOWERING PLANTS-MULTIPLE CHOICE QUESTIONS
  1. Which one of the following statement is correct ?

    Text Solution

    |

  2. Geitonogamy involves

    Text Solution

    |

  3. Function of filiform apparatus is to :- 1. Guide the entry of pollen ...

    Text Solution

    |

  4. Pollen tablets are available in the market for 1. Ex situ conservatio...

    Text Solution

    |

  5. Which one of the following may require pollinators but is genetically ...

    Text Solution

    |

  6. Which one of the following statement is not true ?

    Text Solution

    |

  7. The hilum is a scar on the :

    Text Solution

    |

  8. Which of the following are the important floral rewards to the animal ...

    Text Solution

    |

  9. The wheat grain/maize grain has an embryo with one, large, shield shap...

    Text Solution

    |

  10. Filiform apparatus is characteristic feature of : 1. generative cell ...

    Text Solution

    |

  11. In angiosperms, microsporogenesis and megasporogenesis 1. occur in a...

    Text Solution

    |

  12. Coconut water from a tender coconut is:

    Text Solution

    |

  13. Which of the following statements is not correct 1. Insects that consu...

    Text Solution

    |

  14. Seed formation without fertilization in flowering plants involves the...

    Text Solution

    |

  15. Which of the following statement is not true ?

    Text Solution

    |

  16. In majority of angiosperms:

    Text Solution

    |

  17. Pollination in water by hyacinth and water lily is brought about by th...

    Text Solution

    |

  18. Ovule is technically equivalent to 1. megasporangium with one megaspor...

    Text Solution

    |

  19. Flowers which have single ovule in the ovary and are packed into inflo...

    Text Solution

    |

  20. Functional megaspore in an angiosperm develops into 1. ovule 2. endos...

    Text Solution

    |