1.

    After the completion of megagametogenesis in a typical angiosperm, the mature female gametophyte contains:

    A

    4 cells and 4 nuclei

    B

    8 cells and 8 nuclei

    C

    7 cells and 8 nuclei

    D

    7 cells and 7 nuclei

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Sexual Reproduction in Flowering Plants
    🎯Topic:Pre Fertilization Structure And Events
    PYQ YEAR: 2021
    🎓 Ncert Level:Remembering
    🎯Difficulty :Medium
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Reproduction in Organisms, Sexual Reproduction in Flowering Plants

    Related Questions

    1.

    Raphe is

    A

    Part of flower

    B

    Funicle attached to ovule

    C

    Ridge formed by funiculus

    D

    Part of nucellus

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Sexual Reproduction in Flowering Plants
    🎯Topic:Pre Fertilization Structure And Events
    🎓 Ncert Level:Remembering
    🎯Difficulty :Medium
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Plant anatomy, Ovule structure, Funiculus, Raphe

    2.

    Which one of the following is resistant to enzyme action?

    A

    Cork

    B

    Wood fibre

    C

    Pollen exine

    D

    Leaf cuticle

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Sexual Reproduction in Flowering Plants
    🎯Topic:Pre Fertilization Structure And Events
    🎓 Ncert Level:Remembering
    🎯Difficulty :Medium
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Enzyme action, plant cell structures, biological resistance

    3.

    Which of the following pollination mechanisms specifically involves the transfer of pollen between two different plants of the same species?

    A

    Xenogamy

    B

    Geitonogamy

    C

    Autogamy

    D

    Cleistogamy

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Sexual Reproduction in Flowering Plants
    🎯Topic:Pre Fertilization Structure And Events
    PYQ YEAR: 2021
    🎓 Ncert Level:Understanding
    🎯Difficulty :Medium
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Pollination, Species

    4.

    Micropyle is useful for the entry of

    A

    Pollen grain

    B

    Pollen tube

    C

    Water

    D

    Male gamete

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Sexual Reproduction in Flowering Plants
    🎯Topic:Pre Fertilization Structure And Events
    🎓 Ncert Level:Remembering
    🎯Difficulty :Medium
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :plant reproduction, micropyle, pollen tube

    5.

    Orthotropous ovule belongs to

    A

    Urtica

    B

    Polygonum

    C

    Peperomea

    D

    All of these

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Sexual Reproduction in Flowering Plants
    🎯Topic:Pre Fertilization Structure And Events
    🎓 Ncert Level:Remembering
    🎯Difficulty :Easy
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Plant morphology, Ovule types, Angiosperm families

    6.

    One of the most resistant known biological material is

    A

    Lignin

    B

    Hemicellulose

    C

    sporopollenin

    D

    Lignocellulose

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Sexual Reproduction in Flowering Plants
    🎯Topic:Pre Fertilization Structure And Events
    🎓 Ncert Level:Remembering
    🎯Difficulty :Medium
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Biological materials, plant cell wall components, resistance of biomaterials

    7.

    The inner most layer of microsporangium is

    A

    Tapetum

    B

    Endothecium

    C

    Middle layer

    D

    Epidermis

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Sexual Reproduction in Flowering Plants
    🎯Topic:Pre Fertilization Structure And Events
    🎓 Ncert Level:Remembering
    🎯Difficulty :Medium
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Microsporangium, Plant Anatomy, Tapetum

    8.

    There are 10 flowers in one individual plant of crotalaria. In each microsporangium of every stamen of all the flowers, there are 30 microspore mother cells. How many pollen grains are formed from that plant?

    A

    12000

    B

    24000

    C

    48000

    D

    96000

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Sexual Reproduction in Flowering Plants
    🎯Topic:Pre Fertilization Structure And Events
    🎓 Ncert Level:Application
    🎯Difficulty :Medium
    ⚡ Time Required :3 mins
    🔄Ncert Concepts :plant reproduction, microsporogenesis, pollen grain formation

    9.

    In a particular angiosperm species, the synergids exhibit a unique filiform apparatus oriented away from the micropyle. What would be the MOST likely consequence of this unusual arrangement?

    A

    Enhanced pollen tube attraction

    B

    Faster pollen tube growth

    C

    Reduced fertilization success

    D

    Increased seed production

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Sexual Reproduction in Flowering Plants
    🎯Topic:Pre Fertilization Structure And Events
    🎓 Ncert Level:Application
    🎯Difficulty :Hard
    ⚡ Time Required :1.5 mins
    🔄Ncert Concepts :pre-fertilization, embryo sac, pollen tube guidance, synergids, micropyle

    10.

    Emasculation is not required when flowers are?

    A

    bisexual

    B

    intersexual

    C

    unisexual

    D

    either 1 (or) 2

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Sexual Reproduction in Flowering Plants
    🎯Topic:Pre Fertilization Structure And Events
    🎓 Ncert Level:Remembering
    🎯Difficulty :Medium
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :flower anatomy, emasculation, sexual reproduction in plants

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