Microbiology Trivia: Practice Test Questions! Quiz
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Do you know that the major branches of microbiology are the studies of eukaryotic and prokaryotic organisms? Eukaryotes have membrane-bound organelles contained within their cell membranes, while prokaryotic organisms are unicellular with no membrane-bound organelle. If you consider quite knowledgeable when it comes to microorganisms, these Microbiology trivia practice test questions are perfect for refreshing your memory. Do give it a shot!
- 1.Which of the following is not a virulence factor of a pathogenic microbe?
- A.
Resistance to phagocytosis
- B.
Adherence to mucous membranes
- C.
Induction of inflammatory response in an infected host
- D.
Possession of a capsule
- E.
Production of hyaluronidase
- 2.Adherence to mucous membranes of the host is an important virulence factor in many pathogenic bacteria. The ability to adhere may be due to:
- A.
Cell wall
- B.
Pili
- C.
Glycocalyx
- D.
B and C
- E.
All of the above
- 3.A capsule increases the virulence of certain pathogenic bacteria by:
- A.
Destroying leukocytes
- B.
Inhibiting the formation of interferon
- C.
Destroying red blood cells
- D.
Aiding the cell to evade phagocytosis
- E.
None of the above
- 4.The endotoxin of Gram-negative bacteria is:
- A.
Protein
- B.
Only found in lysogenic strains
- C.
The lipopolysaccharide of the cell wall
- D.
The lipid of the cell membrane
- E.
Bound to the ribosomes
- 5.The direct cause of the symptomstetanus is
- A.
A. Collagenase
- B.
B. Toxic effet of the cells
- C.
C. Hemolysin
- D.
D. Endotoxin
- E.
E. Enterotoxin
- 6.All of the following are useful in non-specific host defense against infectious disease EXCEPT:
- A.
A. Mucous membranes
- B.
B. Alcoholic beverages
- C.
C. Inflammation
- D.
D. Fever
- E.
E. Epithelial cells
- 7.The occurrence of an infectious dicense depends upon:
- A.
A. The virulence of the pathogen
- B.
B. The resistance of the host
- C.
C. Infection of the host by the pathogen
- D.
D. A and B above
- E.
E. All of the above
- 8.9. Each of the following enhances the pathogenicity of a microbe EXCEPT:
- A.
A. Ability to grow intracellularly in phagocytic cells
- B.
B. Possession of a capsule
- C.
C. Ability to aiter surface composition
- D.
D. Production of stomach acid
- E.
E. Exotoxin production
- 9.Exotoxins have all of the foilowing properties EXCEPT:
- A.
A. They are proteins
- B.
B. They induce fever
- C.
C. They act extracellularly from the microbe that produced them
- D.
D. The information for exotoxin production may reside on a prophage
- E.
E. They can damage tissue at sites removed from the area of infection
- 10.Which of the following is not a host resistance factor?
- A.
A. Skin
- B.
B. Inflammation
- C.
C. Interferon
- D.
D. Macrophages
- E.
E. Lipopolysaccharide cell wall layer
- 11.A fever is usually one host response to bacteria! invasion. This response may be due to:
- A.
A. Red blood cell lysis
- B.
B. Pyrogenic factors produced by the host
- C.
C. The lipopolysaccharide of the bacterial cell wall
- D.
D. Loss of the normal microbial flora
- E.
E. Histamine released by bacteria
- 12.Which of the following areas of the human body is usually colonized by the greatest number of bacteria
- A.
A. Large intestine
- B.
B. Lung
- C.
C. Urinary tract
- D.
C. Urinary tract
- E.
E. Stomach
- 13.The kingdom composed of eukarvotic, heterotrophs with many members obtaining energy and nutrients from dead prganic matter kingdom:
- A.
A. Fungi
- B.
B. Eubacteria
- C.
C. Protista
- D.
D. Plantea
- 14.A(n)...................is an organism that obtain energy from foods they consume. also called consumer
- A.
A. Autotroph
- B.
B. Producer
- C.
C. Heterotroph
- D.
D. Photoautotroph
- 15.The compiex carbohydrate that makes up the cell walls of fungi is............................................. (this substance is also found in the exoskeleton of arthropods).
- A.
A. Peptidoglycan
- B.
B. Cellulose
- C.
C. Ribose
- D.
D. Chitin
- 16.The tiny filaments that make up a multicellular fungus or a water mold are called:
- A.
A. Chitins
- B.
B. Mycelia
- C.
C. Hypha
- D.
D. Rhizoids
- 17.Many hyphae tangled together into a thick mass that comprises the bodies of multicellular fungi is known as a :
- A.
A. Stolon
- B.
B. Rhizoid
- C.
C. Mycelium
- D.
D. Condium
- 18.A.................................. is a reproductive structure of fungus that develops from a mycelium
- A.
A. Lichen
- B.
B. Mycorrhiza
- C.
C. Fruiting body
- D.
D. Saprobe
- 19.The gamete-forming structure produced when the hyphae of opposing mating types of fungi meet is known as a (n):
- A.
A. Basidium
- B.
B. Gametangia
- C.
C. Sporangium
- D.
D. Ascus
- 20.The club fungi or................... gets its name from a specialized reproductive structure that resembles a club.
- A.
A. Zygomycetes
- B.
B. Ascomycetes
- C.
C. Basidiomycetes
- D.
d. Deuteromycetes
- 21.A(n)................is a spore-bearing structure of basidiomycetes.
- A.
A. Basidium
- B.
B. Gametangium
- C.
C. Sporangium
- D.
D. Ascus
- 22.An organism that obtains food from decaving organic matter is a:
- A.
A. Condium
- B.
B. mycorrhiza
- C.
C. fruiting body
- D.
D. Saprobe
- 23.Human diseases such as..................&................. fungi. are caused by
- A.
A. Wheat rust, ringworm
- B.
b. Ringworm, athletes foot
- C.
C. Athletes foot, corn smut
- D.
D. Corn smut, wheat rush
- 24.The symbiotic relationship between fungus and a photosynthetic organism is:
- A.
A. Lichen
- B.
B. Mycorrhiza
- C.
C. Fruiting body
- D.
D. Saprobe
- 25.The symbiotic association of plant roots and fungi is known as a:
- A.
A. Condium
- B.
B. Mycorrhiza
- C.
C. Fruiting body
- D.
D. Saprobe
- 26.Which of the following is NOT a reason for studying the actinomycetes?
- A.
A. They contribute to the mineralization of organic material.
- B.
B. They produce the majority of the medically useful, natural antibiotics.
- C.
C. Some members are pathogenic.
- D.
D. All of the above are reasons for studying actinomycetes.
- 27.Which of the following is chararteristic of the members of the suborder Micromonosporineae?
- A.
A. They lack a substrate mycelium.
- B.
B. Some species produce antibiotics such as gentamicin.
- C.
C. Both (a) and (b) are correct.
- D.
D. Neither (a) nor (b) is correct.
- 28.Which of the following colors is frequently observed in the colonies of members of the genus Micrococcus?
- A.
A. red
- B.
B. yellow
- C.
C. orange
- D.
D. All of the above.
- 29.Which of the following is correct about the genus Arthrobacter?
- A.
A. They are irregular, branched rods during exponential growth.
- B.
B. They are coccoid in stationary phase.
- C.
C. Both (a) and (b) are correct.
- D.
D. Neither (a) nor (b) is correct.
- 30.A member of which of the following genera causes diphtheria?
- A.
A. Corynetacterium
- B.
B. Mycobacterium
- C.
C. Propionibacterium
- D.
D. none of the above
- 31.Which of the following diseases is caused by members of the genus Mycobacterium?
- A.
A. Tuberculosis
- B.
B. Leprosy
- C.
C. Both (a) and (b) are correct.
- D.
D. Neither (a) nor (b) is correct.
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