Comparative Embryology Quiz 1

10 Questions | Total Attempts: 115

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Embryology Quizzes & Trivia

Questions and Answers
  • 1. 
    The fertilization membrane develops during the first half of fertilization.
    • A. 

      True

    • B. 

      False

  • 2. 
    Chemotaxis is particularly important in aquatic organisms.
    • A. 

      True

    • B. 

      False

  • 3. 
    In sea urchins, the bindin-bindin receptor matching (recognition) occurs when the sperm contacts the vitelline envelope.
    • A. 

      True

    • B. 

      False

  • 4. 
    What happens during the first half of fertilization?
    • A. 

      The sperm cell finds the egg

    • B. 

      The sperm cell penetrates the barriers

    • C. 

      The egg takes steps to prevent polyspermy

    • D. 

      A and b above

    • E. 

      All of the above

  • 5. 
    Which is/are true about the acrosomal reaction?
    • A. 

      It occurs in sea urchins.

    • B. 

      It penetrates the vitelline envelope.

    • C. 

      It allows the sperm to pass through the oocyte cell membrane.

    • D. 

      A and b above

    • E. 

      All of the above

  • 6. 
    Which is the last of the those steps listed below?
    • A. 

      Binding to vitelline envelope

    • B. 

      Acrosomal reaction

    • C. 

      Penetration of jelly layer

    • D. 

      Chemotaxis

    • E. 

      Binding to the oocyte cell membrane

  • 7. 
    Bindin receptors are
    • A. 

      Needed for a highly species-specific step

    • B. 

      On the surface of the vitelline envelope

    • C. 

      What attracts the sea urchin sperm toward the egg

    • D. 

      A and b above

    • E. 

      All of the above

  • 8. 
    The ________ is/are not part of a sea urchin egg.
    • A. 

      Vitelline envelope

    • B. 

      Cumulus layer

    • C. 

      Cell membrane

    • D. 

      Cortical granules

    • E. 

      Nucleus

  • 9. 
    Which of the following processes has the latest control?
    • A. 

      Acrosome reaction

    • B. 

      Bindin-bindin receptor recognition

    • C. 

      Contact between oocyte and sperm cell membranes

    • D. 

      Chemotaxis

    • E. 

      None of the above are equally species-specific

  • 10. 
    Which of the following is/are not found in the mature sperm cell?
    • A. 

      Cortical granules

    • B. 

      Acrosome

    • C. 

      Tail

    • D. 

      A and b above

    • E. 

      All of the above

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