1. Bacterial cells could have any of the following appendages except
2. Spirochetes have a twisting and flexing locomotion due to appendages called
d. periplasmic flagella (axial filaments).
3. The short, numerous appendages used by some bacterial cells for
adhering to surfaces are
4. The transfer of genes during bacterial conjugation involves rigid, tubular appendages called
e. sex pili.
5. All bacterial cells have
a. a chromosome.
6. The term that refers to the presence of flagella all over the cell surface is
7. The outcome of the Gram stain is based on differences in the cell's
c. cell wall.
8. The most immediate result of destruction of a cell's ribosomes would be
b. protein synthesis would stop.
9. A bacterial cell exhibiting chemotaxis probably has
10. Which structure protects bacteria from being phagocytized?
11. If bacteria living in salty seawater were displaced to a
freshwater environment, the cell
structure that would prevent the cells from rupturing is
b. cell wall.
12. Peptidoglycan is a unique macromolecule found in bacterial
a. cell walls.
13. All of the following structures contribute to the ability of pathogenic bacteria to cause disease except
14. A procaryotic cell wall that has primarily peptidoglycan with
small amounts of teichoic acid
and lipoteichoic acid is
b. gram positive.
15. A bacterial genus that has waxy mycolic acid in the cell walls is
16. All of the following pertain to endotoxins except
e. they are found in acid fast bacterial cell walls.
17. The difference in cell wall structure of Mycobacterium and
Nocardia compared to the typical
gram positive bacterial cell wall structure is
b. predominance of unique, waxy, lipids.
18. Lipopolysaccharide is an important cell wall component of
a. gram negative bacteria.
19. The periplasmic space is
c. an important reaction site for substances entering and leaving the cell.
20. Which of the following, pertaining to prokaryotic cell membranes, is mismatched?
d. unique hydrocarbon present - cyanobacteria
21. The site/s for most ATP synthesis in prokaryotic cells is/are the
e. cell membrane.
22. The bacterial chromosome
c. is part of the nucleoid.
23. Which is mismatched?
c. plasmids - genes essential for growth and metabolism
24. Magnetosomes are
d. composed of magnetic iron oxide particles.
25. The function of bacterial endospores is
c. for protection of genetic material during harsh conditions.
26. Chemical analysis of a bacterial cell structure detects calcium
dipicolinic acid. What is the
identity of this structure?
27. Endospores are
e. All of the choices are correct.
28. Bacterial endospores are not produced by
29. Which term is not used to describe bacterial cell shapes?
30. Which statement is not a characteristic of biofilms?
b. They involve bacteria only.
31. An important indicator of evolutionary relatedness is to determine
d. nitrogen base sequence of rRNA.
32. Which phylum is mismatched?
e. None of the choices are mismatched.
33. Which is mismatched?
c. Cyanobacteria - filamentous, gliding, thermophilic bacteria
34. The presence of thylakoids, phycocyanin, gas inclusions and cysts would be associated with
35. When a rod shaped bacteria is short and plump, it is called a
36. Sarcinae refers to
b. a cuboidal packet of cells.
37. What is the correct sequence for a Gram stain?
c. crystal violet, Gram's iodine, alcohol, safranin
38. All of the following are correct about biofilms except
e. they are harmless aggregations of microbes.
39. Bacteria with small bunches of flagella emerging from the same site are said to be
40. All of the following are correct about a slime layer except
d. it plays a role in cell motility.
41. Lysozyme, an enzyme found in tears, provides a natural defense against bacteria by
a. hydrolyzing peptidoglycan in cell walls.
42. In the Gram stain, the mordant is
43. Which cell structure is an important agent in modern genetic engineering techniques?
44. A microorganism has been described to you as living in hot acidic
habitats in the waste piles
of coal mines that regularly sustain a pH of 1 and a temperature of nearly 60°C. Which type of
organism do you immediately assume it is?
45. Archaea do not have the typical peptidoglycan structure found in bacterial cell walls.
46. Bacteria in the genus Mycoplasma and bacteria called L-forms lack cell walls.
47. Gram negative bacteria do not have peptidoglycan in their cell walls.
48. Hot carbol fuchsin is the primary dye in the acid fast stain.
49. The region between the bacterial cell membrane and the cell wall
is called the outer
50. The prokaryotic cell membrane is a site for many enzymes and metabolic reactions.
51. If during the gram stain procedure, the bacterial cells were
viewed immediately after crystal
violet was applied, gram positive cells would be purple but gram negative cells would be
52. Endospores of certain bacterial species can enter tissues in the
human body, germinate, and
cause an infectious disease.
53. Iodine is the decolorizer in the Gram stain.
54. If you observe rod shaped, pink cells on a slide that had just
been gram stained, you can
assume that their cell walls contain endotoxin.
55. The term diplococci refers to an irregular cluster of spherical bacterial cells.
56. Which of the following is a major component of biological plasma membranes?
57. Which of these cellular structures may not be present in all procaryotes?
d. cell wall
58. Which of the following is most likely non-motile?
59. An enfolding of the bacterial cytoplasmic membrane that increases
membrane surface area
and provides an area of attachment for the DNA during replication
60. The bacterial cell membrane
e. all of these
61. Describes the flagella movement within procaryotes
b. "motor-boat" like
62. An endotoxin is associated with some
a. gram negative cell walls
63. The short appendages on some gram negative bacteria that function
in adhering to surfaces
e. form in response to adverse conditions and germinate whenever
65. The DNA in a cell that is not part of the chromosome is a
66. A bacillus that was covered with many flagella over its entire surface would be
67. Which portion of the LPS molecule is most toxic?
e. Lipid A
68. What means do microorganisms use for locomotion?
e. all of these
69. A gram negative cell that has lost its cell wall is a
70. The presence of this substance makes endospores temperature resistant
b. calcium dipicolinate
71. This type of cellular morphology is described as pairs of spherical cells
72. Spiral bacteria that are flexible and can wiggle their bodies
like a snake due to axial filaments
73. The properties of the glycocalyx include which of the following?
b. inhibit desiccation
74. The cell structure associated with increased virulence due to the inhibition of phagocytosis is
e. the capsule
75. The necessity for elaborate sterilization procedures in hospitals and canneries is due to
76. The following terms are associated with endospores except:
e. heat sensitive.
77. The following belong together except:
78. The appendages that facilitate the transfer of DNA from one cell to another are
79. Flagella are anchored to the plasma membrane by a series of hooks and rings called
b. basal body
80. Some bacteria adhere to the surfaces of teeth via their
glycocalyces and entrap other oral
bacteria. This layer of polysaccharide and entrapped bacterial cells is called
a. dental plaque
81. Some bacteria possess a polysaccharide surface layer that is less
firmly attached to the
bacterial cell than a "capsule" and is called a ____.
c. slime layer
82. Sporosarcina, Bacillus, and _______ have endospores.
83. Which type of unusual prokaryote causes many types of fevers such
as Rocky Mountain
84. Which type of Archaea converts CO2 and H2 into methane?
85. The genus with no cell wall is _______.
86. What part of the prokaryotic cell assists in separating the DNA during replication?
87. The genus ____ requires a cellular host, causes sexually
transmitted diseases, and
88 all procaryotic cells lack a true nucleus
89. Spheroplasts are formed when gram positive microbes do not form a
cell wall during
reproduction while growing in an osmotically friendly environment.
90. _________is an extra-cellular structure that is involved in
exchange of genetic material called
91. _________is the terms that refers to the negative or positive
chemical attraction of microbes
to their environment.
92. __________ is the term that refers to false motility that’s due to environmental motion.
d. Brownian movement
93. __________these structures are also referred to as adhesions
because they allow adherence
to host cells.
Swelling or branching of cells in old cultures
h. Involution forms
Extra-chromosomal piece of DNA
Prevents desiccation and inhibits phagocytosis
by host cells
Storage from or inorganic phosphates
a. Metachromatic granules
Survival mechanism in dry environments
Protective layer formed by microbes in aquatic
Site of protein synthesis
c. two cocci in pairs
e Obligate intracellular
What is the causative agent of Strep throat?
a. Streptococcus pyogenes
Which of the following is most likely NOT a common cause of pneumonia?
c. Bordetella pertussis
Corynebacterium diptheriae causes the disease commonly called
Whooping cough is caused by
d. Bordetella pertussis.
This disease is often diagnosed by the observance of “tubercules” on chest X-rays.
a. Mycobacterium tuberculosis
Infantile botulism is associated with the ingestion of
a. endospores in honey
Bacillus food poisoning is associated with the ingestion of
b. starchy foods such as rice
Which of the following organisms may be the causative agent of food poisoning?
f. all of the above
Is a common cause of stomach ulcers?
c. Helicobacter pylori
Clostridium tetani causes a disease commonly referred to as
What is the causative agent of Typhoid Fever?
b. Salmonella typhi
What is the causative agent of Toxic Shock Syndrome?
c. Staphylococcus aureus
What is the causative agent of the Plague?
d. Yersinia pestis
What is the causative agent of Relapsing Fever?
e Borrelia recurrentis
What is the causative agent of Lyme’s Disease?
f. Borrelia burgdorferi
The Rickettsial Diseases, Rocky Mountain spotted fever, is transmitted via
a. tick bites
The Rickettsial Diseases, Murine Typhus, is transmitted via
c. rat fleas
The Rickettsial Diseases, Scrub Typhus, is transmitted via
The Rickettsial Diseases, Epidemic Typhus, is transmitted via
Brucellosis is transmitted to human via
e. unpasteurized milk or direct contact with infected animals
Neisseria gonorrhea is the causative agent of
Treponema pallidum is the causative agent of
Mycobacterium leprae is the causative agent of
Bacillus anthracis is the causative agent of
Propionibacterium acnes is the causative agent of
Haemophilus aegyptius is the causative agent of
a. pink eye
Neisseria gonorrhea is the causative agent of
b. Opthalmia neonatorum
Chlamydia is the causative agent of