1.

    Micropyle helps in

    A

    Germination of pollen grain

    B

    Growth of pollen tube

    C

    Coming out of pollen tube from pollen grain

    D

    Allowing entry of pollen tube

    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

    Related Questions

    1.

    Pollen grains can be stored for several years in liquid nitrogen having a temperature of

    A

    −1600  C{\rm{ - 16}}{{\rm{0}}^{\rm{0}}}\,\,{\rm{C}}

    B

    − 1200  C{\rm{ - }}\,{\rm{12}}{{\rm{0}}^{\rm{0}}}\,\,{\rm{C}}

    C

    − 1960  C{\rm{ - }}\,{\rm{19}}{{\rm{6}}^{\rm{0}}}\,\,{\rm{C}}

    D

    − 800  C{\rm{ - }}\,{\rm{8}}{{\rm{0}}^{\rm{0}}}\,\,{\rm{C}}

    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 :Cryopreservation, Liquid Nitrogen Temperature

    2.

    Wind pollination is common in grassess. This statement is

    A

    TRUE

    B

    FALSE

    C

    Sometimes (a) and sometimes (b)

    D

    Neither (a) nor (b)

    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 :pollination, wind pollination, plant reproduction

    3.

    If a plant species exhibits dioecy, which of the following is NOT a possible mode of pollination?

    A

    Autogamy

    B

    Anemophily

    C

    Entomophily

    D

    Hydrophily

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Sexual Reproduction in Flowering Plants
    🎯Topic:Pre Fertilization Structure And Events
    PYQ YEAR: 2017
    🎓 Ncert Level:Application
    🎯Difficulty :Medium
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Reproduction in Organisms, Sexual Reproduction in Flowering Plants

    4.

    Ornithophily refers to the pollination by which of the following?

    A

    Insects

    B

    Birds

    C

    Snails

    D

    Air

    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 :Pollination, Ornithophily, Biological Processes

    5.

    Pollinium is found in?

    A

    asclepiadaceae

    B

    rubiaceae

    C

    solanaceae

    D

    myrtaceae

    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 morphology, botany, pollination

    6.

    Single megasporic development is called

    A

    Single sporic

    B

    Unisporic

    C

    Monosporic

    D

    Nulleiporic

    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 :Botany, Megasporogenesis, Terminology

    7.

    Microspore develops into ova. This sentence is

    A

    TRUE

    B

    FALSE

    C

    Sometimes (a) and sometimes (b)

    D

    Neither (a) nor (b)

    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 :microspore, ova, plant reproduction

    8.

    Ornithophily refers to the pollination by which of the following?

    A

    Insects

    B

    Birds

    C

    Snails

    D

    Air

    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 :Pollination, Ornithophily

    9.

    The female gametophyte in angiosperms is also known as:

    A

    Nucellus

    B

    Embryo sac

    C

    Ovule

    D

    Megaspore mother cell

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Sexual Reproduction in Flowering Plants
    🎯Topic:Pre Fertilization Structure And Events
    🎓 Ncert Level:Remembering
    🎯Difficulty :Medium
    ⚡ Time Required :0.5 mins
    🔄Ncert Concepts :Pre-fertilization structures, Embryo sac

    10.

    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

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