Home
Class 12
BIOLOGY
Endothecium layer present below epidermi...

Endothecium layer present below epidermis in anther bears fibrous thickings and helps in

A

dehiscenece of anthers

B

nutrition of spores

C

formation of sporopollenin

D

absorption of water

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

Which of the following statements is/are correct ? (i) Endothecium lies below epidermis (ii) Fusion of egg with male gamete is called apogamy (iii) Synergids are haploid. (iv) The point at which funicle touches the ovule is raphe.

Given below are assertion and reason. Point out if both are correct with reason being correct explanation (A), both true but reason is not correct explanation (B), assertion true but reason is wrong (C), both are wrong (D). Assertion. Thick layers of muscles are present in the wall of alimentary canal. Reason. These muscles help in mixing of food materials with enzymes coming from glands of alimentary canal.Â

Answer briefly: (a) Why are villi present in the intestine and not in the stomach? (b) How does pepsinogen change into its active form? (c) What are the basic layers of the wall of alimentary canal? (d) How does bile help in the digestion of fats?

Read the following statements and choose the correct options I. Pelvic fins of female sharks bear claspers. II . In Obelia polyps produce medusae sexually and medusae form the polyps produce medusae sexually and medusae form the polyps a sexually . III . Flame cells in platyheliminthes help in osmoregulation and excretion . IV. In nonchordates , central nervous system is ventral , solid and double . V . Pinnae are present in mammals .

Bulliform cells that help in the rolling down of Lamina in drought, are present in epidermis of

TRUEMAN BIOLOGY-SEXUAL REPRODUCTION IN FLOWERING PLANTS-MULTIPLE CHOICE QUESTIONS
  1. Pollen grain is related to embryo sac as

    Text Solution

    |

  2. A typical anther of an angiosperm is

    Text Solution

    |

  3. Endothecium layer present below epidermis in anther bears fibrous thic...

    Text Solution

    |

  4. The number of pollen grains, produced by each head inflorescene of fam...

    Text Solution

    |

  5. Pollen sac correponds to which part

    Text Solution

    |

  6. Pollen tube is made up of

    Text Solution

    |

  7. The intine of a pollen grain is mainly made up of

    Text Solution

    |

  8. In angiosperm pollen grains are dehisced at

    Text Solution

    |

  9. In dicots, at how many places exine is absent in the pollen grain ?

    Text Solution

    |

  10. Which one is larger nucleus in pollen grain ?

    Text Solution

    |

  11. The exine of a pollen grain is composed of one of the most resistant ...

    Text Solution

    |

  12. Genotypically the pollen grains produced inside the anther belong to 1...

    Text Solution

    |

  13. Germ pore is the area where exine is

    Text Solution

    |

  14. A plant root has 16 chromosomes , so

    Text Solution

    |

  15. Sculpturing of exine of pollen is important in

    Text Solution

    |

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

    Text Solution

    |

  17. Ovule is attached to the placenta by a stalk known as 1. funicle 2. ...

    Text Solution

    |

  18. Collar like outgrowth arising from the base of ovule and forming is a ...

    Text Solution

    |

  19. In tenuinucellate type of ovule

    Text Solution

    |

  20. Crassinucellate ovule shows: 1. Developed nucellus 2. Partially dev...

    Text Solution

    |