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MICROBIOLOGY TEST BANK QUESTIONS AND ANSWERS -9
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MICROBIOLOGY TEST BANK QUESTIONS AND ANSWERS -9
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MICROBIOLOGY TEST BANK QUESTIONS AND ANSWERS #9D - correct answer Which of the following is a eukaryotic domain in the three-domain
system?
A. Archaea
B. Fungi
C. Bacteria
D. Eukarya
A - correct answer Who was the first to observe microorganisms with a microscope?
A. Van Leeuwenhoek
B. Hooke
C. Koch
D. Pasteur
E. None of the above
B - correct answer These are the primary molecules making up membranes in cells:
A. Proteins
B. Phospholipids
C. Nucleic acids
D. Carbohydrates
E. None of the above
A - correct answer Aerobic respiration differs from anaerobic respiration in which of the
following respects?
A. The final electron acceptors are different
B. Aerobic respiration creates fewer molecules of ATP
C. Anaerobic respiration includes glycolysis
D. Aerobic respiration requires the electron transport chain
B - correct answer Which of the following has to consume carbohydrates for both
carbon and energy?
A. Photoautotroph
B. Chemoheterotroph
C. Chemoautotroph
D. Photoheterotroph
B - correct answer salts and sugars work to preserve foods by creating a
A. Depletion of nutrients
B. Hypertonic environment
C. Hypotonic environment
D. Lower ph
D - correct answer The term facultative anaerobe refers to an organism
A. Is killed by oxygen
B. Doesnt use oxygen but tolerates it
,C. Requires less oxygen than is present in air
D. Can use oxygen or can grow without oxygen
C - correct answer which group of the following bacterial growth types and temperatures
is mismatched?
A. Psychrotroph- optimal growth 22C
B. Psychrophile- optimal growth 12C
C. Thermophile- optimal growth 37C
D. Hyperthermophile- optimal growth 95C
A - correct answer Which group of microorganisms is most likely to spoil a freshwater
trout preserved with salt?
A. Halophiles
B. Psychrophiles
C. Anaerobes
D. Thermophiles
A - correct answer Which of the following is a good method to sterilize the interior of
dense materials without using high heat?
A. Ionizing radiation
B. Pasteurization
C. Autoclave
D. None of the above
B - correct answer One important ecosystem function performed by microorganisms
(such as algae and cyanobacteria) is the primary production of biomass through the
metabolic process of
A. Anaerobic respiration
B. Photosynthesis
C. Aerobic respiration
D. Fermentation
B - correct answer The bacteria that are typically present and on the surface of the
human body, and which are typically harmless or even helpful to humans are called the
"________" microbiota
A. Endemic
B. Normal
C. Symptomatic
D. Pathogenic
D - correct answer what does the scientific debate about spontaneous generation vs.
Biogenesis tell us about the process of science?
A. Science is composed of theories based on personal beliefs
B. None of the above
C. Science is simply the collection of facts about nature over time
, D. Science is the process of refining ideas through vigorous debate and the challenging
of old ideas with new data collection
A - correct answer Which of the following bacterial genus names means "string of rod-
shaped cells"
A. Streptobacillus
B. Streptococcus
C. Lactobacillus
D. Staphylobacillus
D - correct answer Regarding pasteurs experiments with the S-neck flask, which of the
following statements is true?
A. The liquid did not contain food for microbes
B. The results supported the theory of spontaneous generation, not biogenesis
C. The liquid was not boiled to kill the microbes
D. The S-flask allowed air to enter the flask
D - correct answer whose work began the "golden age of microbiology" and included
the refinement of aseptic technique?
A. Hooke
B. Van Leeuwenhoek
C. Koch
D. Pasteur
E. None of the above
B - correct answer A single celled, eukaryotic, motile organism that ingests its food and
has no cell wall is a
A. Bacterium
B. Protozoan
C. Alga
D. Fungus
E. Virus
A - correct answer a prokaryote that lacks peptidoglycan in its cell walls and typically
lives in extreme environments is called a
A. Archaean
B. Protozoan
C. Bacterium
D. Alga
E. Fungus
B - correct answer What is the typical diameter of bacterial cells?
A. 1000-10,000 microns
B. 0.2-8 microns
C. 10-100 microns
D. 100-1000 microns
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