Chapter 20 Biology Test

36 Questions | Total Attempts: 171

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Biology Quizzes & Trivia

Biology may be a tough subject to master, but you’ll find given a little extra elbow grease in your study sessions that the subject matter is actually both interesting and important for providing you with an understanding of the science of the natural world around us. Take this biology quiz!


Questions and Answers
  • 1. 
    What protects a prokaryotic cell from injury?
    • A. 

      Different cell membrane

    • B. 

      Different cell wall

    • C. 

      Pilli

    • D. 

      Flagella

  • 2. 
    The bigger group of prokaryotes is ___________.
  • 3. 
    E-coli is an example of which group of bacteria?
    • A. 

      Eubacteria

    • B. 

      Archaebacteria

  • 4. 
    A bacteria's __________ is used for movement.
  • 5. 
    ____________ convert atmosperic nitrogen into a form that plants can use.
  • 6. 
    Circle the letter of each sentence that is true about archaebacteria:
    • A. 

      They lack peptidoglycan (starch).

    • B. 

      They lack a cell wall.

    • C. 

      They look very similar to eubacteria.

    • D. 

      Their membrane lipids are different from those of eubacteria.

  • 7. 
    The __________ theory relates archaebacteria to eurkaryotes.
  • 8. 
    What is significant about the DNA sequences of key archaebacterial genes? (doesn't need to be in a complete sentence)
  • 9. 
    _________ are single celled organisms that lack a nucleus.
  • 10. 
    Which is NOT part of the structure of bacteria?
    • A. 

      Flagella

    • B. 

      DNA

    • C. 

      Capsid

    • D. 

      Ribosomes

    • E. 

      Pilli

  • 11. 
    This describes spherical shaped bacteria. 
    • A. 

      Bacilli

    • B. 

      Cocci

    • C. 

      Spirilla

    • D. 

      Rod

  • 12. 
    Positive uses of bacteria include:
    • A. 

      Fermentation in food

    • B. 

      Control of bug population

    • C. 

      Genetic engineering

    • D. 

      Production of insulin

    • E. 

      Canning of foods

    • F. 

      Digestion

  • 13. 
    A ________ includes particles of nucleic acids, proteins, and some lipids that can only reproduce by infecting living cells.
  • 14. 
    What is the main difference between viruses and bacteria?
  • 15. 
    Tuberculosis and measles are diseases caused by...
    • A. 

      Viruses

    • B. 

      Bacteria

  • 16. 
    AIDS and influenzea are diseases caused by...
    • A. 

      Viruses

    • B. 

      Bacteria

  • 17. 
    ________ viruses lead to cancer.
  • 18. 
    Lysogenic infection causes the host cell to burst.
    • A. 

      True

    • B. 

      False

  • 19. 
    ________ are particles that only contain proteins.
    • A. 

      Retroviruses

    • B. 

      Prions

    • C. 

      Cancer cells

    • D. 

      Bacteriophages

  • 20. 
    Why are viruses specific to the host cell they infect?
  • 21. 
    A typical virus gets into a cell by injecting DNA into it.
    • A. 

      True

    • B. 

      False

  • 22. 
    ___________ are drugs that can attack a bacterial infection.
  • 23. 
    Where do menthanogens live?
    • A. 

      Ocean vents

    • B. 

      Sulfur springs

    • C. 

      In cows

  • 24. 
    ____________ are disease causing bacteria.
  • 25. 
    Gangrene (clostridium) is caused by which type of pathogen?
    • A. 

      Exotoxin

    • B. 

      Endotoxin

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