Microbiology module 4 Flashcards

1. Bacterial cells could have any of the following appendages except

2. Spirochetes have a twisting and flexing locomotion due to appendages called

3. The short, numerous appendages used by some bacterial cells for adhering to surfaces are
called

4. The transfer of genes during bacterial conjugation involves rigid, tubular appendages called

5. All bacterial cells have

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

8. The most immediate result of destruction of a cell's ribosomes would be

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

12. Peptidoglycan is a unique macromolecule found in bacterial

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

15. A bacterial genus that has waxy mycolic acid in the cell walls is

16. All of the following pertain to endotoxins except

17. The difference in cell wall structure of Mycobacterium and Nocardia compared to the typical
gram positive bacterial cell wall structure is

18. Lipopolysaccharide is an important cell wall component of

19. The periplasmic space is

20. Which of the following, pertaining to prokaryotic cell membranes, is mismatched?

21. The site/s for most ATP synthesis in prokaryotic cells is/are the

22. The bacterial chromosome

23. Which is mismatched?

24. Magnetosomes are

25. The function of bacterial endospores is

26. Chemical analysis of a bacterial cell structure detects calcium dipicolinic acid. What is the
identity of this structure?

27. Endospores are

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?

31. An important indicator of evolutionary relatedness is to determine

32. Which phylum is mismatched?

33. Which is mismatched?

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

37. What is the correct sequence for a Gram stain?

38. All of the following are correct about biofilms except

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

41. Lysozyme, an enzyme found in tears, provides a natural defense against bacteria by

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
membrane.

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
colorless.

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?

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

61. Describes the flagella movement within procaryotes

62. An endotoxin is associated with some

63. The short appendages on some gram negative bacteria that function in adhering to surfaces
are

Endospores

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?

68. What means do microorganisms use for locomotion?

69. A gram negative cell that has lost its cell wall is a

70. The presence of this substance makes endospores temperature resistant

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
are

73. The properties of the glycocalyx include which of the following?

74. The cell structure associated with increased virulence due to the inhibition of phagocytosis is

75. The necessity for elaborate sterilization procedures in hospitals and canneries is due to

76. The following terms are associated with endospores except:

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

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

81. Some bacteria possess a polysaccharide surface layer that is less firmly attached to the
bacterial cell than a "capsule" and is called a ____.

82. Sporosarcina, Bacillus, and _______ have endospores.

83. Which type of unusual prokaryote causes many types of fevers such as Rocky Mountain
Spotted Fever?

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
worldwide blindness.

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
conjugation.

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.

93. __________these structures are also referred to as adhesions because they allow adherence
to host cells.

Swelling or branching of cells in old cultures

Extra-chromosomal piece of DNA

Prevents desiccation and inhibits phagocytosis
by host cells

Storage from or inorganic phosphates

Survival mechanism in dry environments

Protective layer formed by microbes in aquatic
environments

Site of protein synthesis

Flexible helix

Diplococcus

Rickettsias

What is the causative agent of Strep throat?

Which of the following is most likely NOT a common cause of pneumonia?

Corynebacterium diptheriae causes the disease commonly called

Whooping cough is caused by

This disease is often diagnosed by the observance of “tubercules” on chest X-rays.

Infantile botulism is associated with the ingestion of

Bacillus food poisoning is associated with the ingestion of

Which of the following organisms may be the causative agent of food poisoning?

Is a common cause of stomach ulcers?

Clostridium tetani causes a disease commonly referred to as

What is the causative agent of Typhoid Fever?

What is the causative agent of Toxic Shock Syndrome?

What is the causative agent of the Plague?

What is the causative agent of Relapsing Fever?

What is the causative agent of Lyme’s Disease?

The Rickettsial Diseases, Rocky Mountain spotted fever, is transmitted via

The Rickettsial Diseases, Murine Typhus, is transmitted via

The Rickettsial Diseases, Scrub Typhus, is transmitted via

The Rickettsial Diseases, Epidemic Typhus, is transmitted via

Brucellosis is transmitted to human via

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

Neisseria gonorrhea is the causative agent of

Chlamydia is the causative agent of