Home
Class 12
BIOLOGY
The outermost and innermost wall layers ...

The outermost and innermost wall layers of microsporangium in an anther are respectively
(A) Endothecium and tapetum
(B) Epidermis and endodermis
(C) Epidermis and middle layer
(D) Epidermis and tapetum

A

Endothecium and tapetum

B

Epidermis and endodermis

C

Epidermis and middle layer

D

Epidermis and tapetum

Text Solution

Verified by Experts

The correct Answer is:
D
A typical spore is generally covered by four walled layers. Means epidermis at the outer most side protective layer, endothecium, (endothecium in middle layer) and tapetum (tapetum at the innermost side)
Promotional Banner

Topper's Solved these Questions

  • SEXUAL REPRODUCTION IN FLOWERING PLANTS

    KUMAR PRAKASHAN|Exercise Section -E (Solution of NCERT Exemplar)(Very Short Answer Type Questions)|18 Videos

  • SEXUAL REPRODUCTION IN FLOWERING PLANTS

    KUMAR PRAKASHAN|Exercise Section -E (Solution of NCERT Exemplar)(Short Answer Type Questions)|10 Videos

  • SEXUAL REPRODUCTION IN FLOWERING PLANTS

    KUMAR PRAKASHAN|Exercise Section -D (Textual Exercise)|18 Videos

  • REPRODUCTIVE HEALTH

    KUMAR PRAKASHAN|Exercise Section - F Multiple Choice Questions (MCQs)|102 Videos

  • STRATEGIES FOR ENHANCEMENT IN FOOD PRODUCTION

    KUMAR PRAKASHAN|Exercise SECTION -F (Multiple Choice Questions (MCQs)) (MCQs Asked In Competition Exam)|63 Videos

Similar Questions

Explore conceptually related problems

The innermost wall layer of microsporangium is called.

Endothecium, middle layer and tapetum in anther are derived from :-

Epiblema of roots is equivalent to (A) Pericycle (B) Endodermis (C) Epidermis (D) Stele

When we peel the skin of a potato tuber, we remove (A) Periderm (B) Epidermis (C) Cuticle (D) Sapwood

In a typical complete, bisexual and hypogynous flower, the arrangement of floral whorls on the thalamus from the outermost to the innermost is (A) Calyx, corolla, androecium and gynoecium (B) Calyx, corolla, gynoecium and androecium (C) Gynoecium, androecium, corolla and calyx (D) Androecium, gynoecium, corolla and calyx

Outermost layer of the pollen is formed from endothecium and is made up of (A) pectocellulose (B) lignocellulose (C) sporopollenin (D) pollen kit

In which of the following pairs of parts of a flowering plant is epidermis absent ? (A) Root tip and shoot tip (B) Shoot bud and floral bud (C) Ovule and seed (D) Petiole and pedicel

Sporogenous tissue gets its nourishment from layer of anther wall, which can release not only enzymes but also hormones? (A) Middle layer (B) Epidermis (C) Tapetum (D) Endothecium

In an experiment to estimate the size of a molecule of oleic acid 1 mL of oleic acid is dissolved in 19 ml of alcohol. Then I mL of this solution is diluted to 20 mL by adding alcohol. Now 1 drop of this diluted solution is placed on water in a shallow through. The solution spreads over the surface of water forming one molecule thick layer. Now lycopodium powder is sprinkled evenly over the film and its diameter is measured. Knowing the volume of the drop and area of the film we can calculate the thickness of the film which will give us the size of oleic acid molecule. Read the passage carefully and answer the following questions. (a) Why do we dissolve oleic acid in alcohol ? (b) What is the role of lycopodium powder ? (c) What would be the volume of oleic acid in each ml of solution prepared ? (d) How will you calculate the volume of n drops of this solution of oleic acid ? (e) What will be the volume of oleic acid in one drop of this solution ?

KUMAR PRAKASHAN-SEXUAL REPRODUCTION IN FLOWERING PLANTS-Section -E (Solution of NCERT Exemplar)(Multiple Choice Questions)
  1. Among the terms listed below, those that of are not technically correc...

    Text Solution

    |

  2. Embryo sac is to ovule as …..is to an anther (A) stamen (B) Filamen...

    Text Solution

    |

  3. In a typical complete, bisexual and hypogynous flower, the arrangement...

    Text Solution

    |

  4. A dicotyledonous plant bears flowers but never produces fruits and see...

    Text Solution

    |

  5. The outermost and innermost wall layers of microsporangium in an anthe...

    Text Solution

    |

  6. During microsporogenesis, meiosis occurs in (A) Endothecium (B) Mic...

    Text Solution

    |

  7. From among the sets of terms given below, identify those that are asso...

    Text Solution

    |

  8. Starting from the innermost part, the correct sequence of parts in an ...

    Text Solution

    |

  9. From the statements given below choose the option that are true for a ...

    Text Solution

    |

  10. Autogamy can occur in a chasmogamous flower if (A) Pollen matures be...

    Text Solution

    |

  11. Choose the correct statement from the following (A) Cleistogamous flo...

    Text Solution

    |

  12. A particular species of plant produces light, non-sticky pollen in lar...

    Text Solution

    |

  13. From among the situations given below, choose the one that prevents bo...

    Text Solution

    |

  14. In a fertilised embryo sac, the haploid, diploid, and triploid sturctu...

    Text Solution

    |

  15. In an embryo sac, the cells that degenerate after fertilisation are (...

    Text Solution

    |

  16. While planning for an artificial hybridization programme involving dio...

    Text Solution

    |

  17. In the embryos of a typical dicot and a grass, true homologous structu...

    Text Solution

    |

  18. The phenomenon observed in some plants where in parts of the sexual ap...

    Text Solution

    |

  19. In a flower, if the megaspore mother cell forms megaspores without und...

    Text Solution

    |

  20. The phenomenon wherein, the ovary develops into a fruit without fertil...

    Text Solution

    |