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2013-01-30 17:31:17

EAC Dr. Butler Microbiology Exam 1
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  1. 1. Which of the following is not considered a microorganism?

    a.       Algae.      
    b.       Bacterium
    c.       Protozoan
    d.      Mushroom
  2. An area of microbiology that is concerned with the occurrence of disease in human populations is
  3. Which process involves the deliberate alteration of an organism’s genetic material?
    recombinant DNA
  4. A prominent difference between prokaryotic and eukaryotic cells is the
    presence of a nucleus in eukaryotes
  5. 5. Which of the following parts was absent from Leeuwenhoek’s microscopes?
  6. Abiogenesis refers to
      Spontaneous generation of organisms from nonliving matter
  7. 7. A hypothesis can be defined as
    A scientific explanation that is subject to testing
  8. Which early microbiologist was most responsible for developing standard microbiology laboratory techniques?
    Robert Koch
  9. Which scientist is most responsible for finally laying the theory of spontaneous generation to rest?
    Louis Pasteur
  10. Define a theory
     hypothesis has been thoroughly supported by long-term study and data
  11. What is the order of taxonomic categories?
    Domain, kingdom, phylum, class order, family, genus, species
  12. By definition, organisms in the same _________ are more closely related than those who are in the same __________.

    A.       Order, family
    B.      Class, phylum
    C.       Family, genus
    D.      Phylum, division
    B. class, phylum
    (this multiple choice question has been scrambled)
  13. 13. Which of the following are prokaryotic?

    A.      Both A and B
    B.       Protists
    C.       Bacteria
    D.      Archaea
    A.      Both A and B
    (this multiple choice question has been scrambled)
  14. 14. Order the following items by size using number: 1=smallest and 8=largest.

    3 AIDS
    7 Amoeba
    4 Rickettsia
    2 Protein
    8 Worm
    5 Coccus-shaped bacterium
    6 White Blood cell
    1 Atom
    • Atom
    • Protein
    • AIDS
    • Rickettsia
    • Coccus bacterium
    • White blood cell
    • Amoeba
    • Worm
  15. 15. Which of the following is not an emerging infectious disease?
    a.       Avian influenza
    b.      Sars
    c.       Common cold
    d.      AIDS
    C Common Cold
  16. 16 How would you classify a virus?
    A.       Neither
    B.       Prokaryotic
    C.      Eukaryotic
    A. Neither
    (this multiple choice question has been scrambled)
  17. 1. Which structure is not a component of all cells?
    a.   Cell wall
    b.   Cell membrane
    c.   Genetic material
    d.   Ribosomes
    A Cell wall
  18. 2. Viruses are not considered living things because
    They are not cells, cannot reproduce, lack metabolism
  19. 3. Which of the following is not found in all bacterial cells?
    A.  Ribosomes
    B.  Actin cytoskeleton
    C.  A nucleoid
    D.  Cell membrane
    B.  Actin cytoskeleton
    (this multiple choice question has been scrambled)
  20. 4. The major locomotor structures in bacteria are
  21. 5. Pilli are tubular shafts in _____ bacteria that serve as a means of ______.

    A. Gram positive, genetic exchange
    B. Gram positive, attachment
    C. Gram-negative, genetic exchange
    D. Gram-negative, protection
    C. Gram-negative, genetic exchange
    (this multiple choice question has been scrambled)
  22. 6. An example of glycocalyx is
    A.  A capsule
    B.  Pilli
    C.  Cell wall
    D.  Outer membrane
    A.  Capsule
    (this multiple choice question has been scrambled)
  23. Which of the following is a primary bacterial cell wall function?
  24. 8. Which of the following is present in both gram-positive
    and gram-negative cell walls?

    a.   An outer membrane

    b.   Peptidoglycan

    c.   Teichhoic acid

    d.   Lipopolysaccharides
    b.   Peptidoglycan
  25. Bacterial endospores function in
  26. An arrangement in packets of eight cells is described as a
  27. 15. Which stain is used to distinguish differences between the cell walls of medically important bacteria?
    Gram stain
  28. First living cells were
  29. 1. Both flagella and cilia are found in
    A.    Fungi                                                               d.    Both b and c
    B.   Algae
    C.   Protozoa
    C. Protozoa
    (this multiple choice question has been scrambled)
  30. Features of nuclear envelope include
    A. Ribosomes
    B. Pores that allow communication with the cytoplasm
    C. B and C
    D. A double membrane structure
    E.  All of the above.
    C.  B and C
    (this multiple choice question has been scrambled)
  31. What is embedded in rough endoplasmic reticulum?
  32. 5. Yeasts are _____ fungi, and molds are _____ fungi.
    Unicellular, filamentous
  33. In general fungi derive nutrients through
    A) Engulfing bacteria
    B) Parasitism
    C) Photosynthesis
    D) Digesting organic substrates
    D) Digesting organic substrates
    (this multiple choice question has been scrambled)
  34. 9. Which characteristic(s) is/are not typical of protozoan cells?

    A.   Spore
    B.  Trophozoite
    C.  Locomotor organelle
    D.  Cyst
    A. Sproe
    (this multiple choice question has been scrambled)
  35. The protozoan trophozite is which stage?
      Active feeding stage
  36. A nutrient essential to an organisms metabolism that cannot be synthesized itself is 
    Growth Factor
  37. An organism that can syntehsize all its required organic components from CO2 is a  
    A. Chemoheterotroph
    B. Photoautotroph
    C. Photoheterotroph
    D. Chemoautotroph
    B. Photoautotroph
    (this multiple choice question has been scrambled)
  38. Halophiles like
  39. Chemoautotrophs can survive on ___ alone
    Minerals and CO2
  40. 6. Which of the following is true for all organic organisms?a.                                                                     They require organic nutrients                                                                   They require inorganic nutrients                                                                     They require growth factors                                                                  They require oxygen gas
    The require inorganic nutrients
  41. A pathogen would most accurately be described as a 
  42. A cell exposed to a hypertonic environment will  ____ by osmosis.

    A. Neither gain or lose
    B. Burst
    C. Gain water
    D. Lose water
    D. Lose water
    (this multiple choice question has been scrambled)
  43. In a viable plant count, each ______ represents a _______ from the sample population
    colony, cell
  44. _______ is another term for biosynthesis.
  45. Catabolism is a form of metabolism in which _____ molecules are converted into ____ molecules.
    Large, small
  46. Energy in biological systems generally are 
  47. Most oxidation reactions involve
    removal of electrons and hydrogens
  48. What does an microbial agent do
    Destroys microorganisms
  49. What is a process that destroys the non-spore forming contaminants on objects is
  50. High temperatures ___ and low temperatures___
    Kills cells, inhibit cell growth
  51.  The temperature-pressure combination for an autoclave is
    b.                                                                    121oC and 15 psi
  52. 1. A compound synthesized by bacteria or fungi that destroys or inhibits the growth of other microbes is
  53. 3. Microbial resistance to drugs is acquired through
  54. What is a plasmid?
    RNA that is not essential to cell growth that can send adaptations to other bacteria
  55. Are protistas prokaryotic?
  56. Whats the difference between eukaryotic and prokaryotic cells
    Both cell types have many, many ribosomes, but the ribosomes of the eukaryotic cells are larger and more complex than those of the prokaryotic cell. Ribosomes are made out of a special class of RNA molecules (ribosomal RNA, or rRNA) and a specific collection of different proteins. A eukaryotic ribosome is composed of five kinds of rRNA and about eighty kinds of proteins. Prokaryotic ribosomes are composed of only three kinds of rRNA and about fifty kinds of protein
  57. What are protists?
    Algae and fungi
  58. Classify protozoa
    • Mastigophora- Move by flagella alone
    • Sarcodina- Pseudopods
    • Ciliophora- Cilia
    • Apicomplexa- Glide, almost dont have motility