Pteridophytes Part - II

20 Questions | Total Attempts: 991

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Pteridophytes   Part - II

MARKS 20 TIME :20 MIN


Questions and Answers
  • 1. 
    The pollination of spores in Nephrolepis i.e. spores are dispersed and carried away by
    • A. 

      Water

    • B. 

      Air

    • C. 

      Insects

    • D. 

      Humans

  • 2. 
    The terminology used when antheridium matures first to archegonium
    • A. 

      Protandry

    • B. 

      Protogyny

    • C. 

      Protandrygyny

    • D. 

      None of the above

  • 3. 
    The gametophytic generation of fern is known as 
    • A. 

      Prothallus

    • B. 

      Protuberance

    • C. 

      Progametangia

    • D. 

      None of the above

  • 4. 
    ____type of  fertilization occurs in Nephrolepis
    • A. 

      Self Fertilization

    • B. 

      Cross Fertilization

    • C. 

      Both a & b

    • D. 

      None of the above

  • 5. 
    The cells of Prothallus in Nephrolepis have following features
    • A. 

      Thin walled

    • B. 

      Have chloroplast

    • C. 

      Stomata absent

    • D. 

      All of the above

  • 6. 
    The Prothallus in fern Nephrolepis is 
    • A. 

      Monoecious

    • B. 

      Dioecious

    • C. 

      Without sex organs

    • D. 

      None of the above

  • 7. 
    In the Prothallus of Nephrolepis location of sex organs is 
    • A. 

      Archegonia near rhizoids and antheridia below apical notch

    • B. 

      Antheridia near rhizoids but archegonia absent

    • C. 

      Antheridia near rhizoids and Archegonia below apical notch partially embedded in cushion

    • D. 

      Archegonia near rhizoids and Antheridia absent

  • 8. 
    The Sexual Reproduction in Nephrolepis is
    • A. 

      Isogamous

    • B. 

      Anisogamous

    • C. 

      Oogamous

    • D. 

      Absent

  • 9. 
    The antheridial  wall in Nephrolepis made up of which cells
    • A. 

      First Ring cell

    • B. 

      Second Ring cell

    • C. 

      Cap cell

    • D. 

      All of the above

  • 10. 
    The androcytes / antherozoid mother cells present in antheridium show ploidy level
    • A. 

      Haploid

    • B. 

      Diploid

    • C. 

      Triploid

    • D. 

      Polyploid

  • 11. 
    The androcytes undergo which process to form haploid multiflagellate antherozoids
    • A. 

      Mitosis

    • B. 

      Meiosis

    • C. 

      Amitosis

    • D. 

      Metamorphosis

  • 12. 
    Single Neck Canal Cell in archegonium of Nephrolepis bears ___ number of nuclei
    • A. 

      1

    • B. 

      2

    • C. 

      3

    • D. 

      Many

  • 13. 
    The antherozoids in fern is
    • A. 

      Simple and uniflagellate

    • B. 

      Spirally coiled and biflagellate

    • C. 

      Simple and multiflagellate

    • D. 

      Spirally coiled and multiflagellate

  • 14. 
    The mucilage released from archegonium of fern contains 
    • A. 

      Citric acid

    • B. 

      Aspartic acid

    • C. 

      Malic acid

    • D. 

      None of the above

  • 15. 
    Mucilage when dissolved in water, attract swarms of antherozooids towards archegonium is known as
    • A. 

      Chemotaxis

    • B. 

      Phytotaxis

    • C. 

      Gamotaxis

    • D. 

      None of the above

  • 16. 
    Which one of the following cell  lead to the development of sporophyte in Nephrolepis
    • A. 

      Egg

    • B. 

      Ovum

    • C. 

      Zygote

    • D. 

      Endosperm

  • 17. 
    The diploid zygote so formed after fertilization develops a protective wall around it is now known as
    • A. 

      Egg

    • B. 

      Oospore

    • C. 

      Ovum

    • D. 

      None of the above

  • 18. 
    The haploid sexual generation in Nephrolepis is 
    • A. 

      Gametophyte

    • B. 

      Sporophyte

    • C. 

      Both of them

    • D. 

      None of the above

  • 19. 
    Sporophyte produces gametophyte through 
    • A. 

      Asexual Reproduction

    • B. 

      Sexual Reproduction

    • C. 

      Vegetative Reproduction

    • D. 

      Both a & b

  • 20. 
    In ferns Gametophyte produces sporophyte through
    • A. 

      Asexual Reproduction

    • B. 

      Sexual Reproduction

    • C. 

      Vegetative Reproduction

    • D. 

      Both a & b

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