Microbiology Exam 3 Verified Grades v v v v
already passed,A+ v v
E - CORRECT ANSWER✔✔Microorganisms that "mineralize" organic compounds (select the essence of
v v v v v v v v v v v
mineralization, not from Wikipedia)
v v v v v
A. render them less toxic.
v v v v
B. degrade them to minerals such as the salts of calcium, magnesium and potassium.
v v v v v v v v v v v v v v
C. reduce them to methane.
v v v v v
D. render them water-soluble.
v v v
E. oxidize them to CO2.
v v v v
A - CORRECT ANSWER✔✔Which of the below is notorious in Florida and elsewhere as the cause of necrotic
v v v v v v v v v v v v v v v v v
skin- and flesh-lesions?
v v v
A. Vibrio vulnificus v v
B. V. badassificus v v
C. V. fischeri v v v
D. V. cholerae v v v
E. V. parahemolyticus
v v
B - CORRECT ANSWER✔✔Which causes a true "food poisoning," i.e., elaborates a toxin outside of the host
v v v v v v v v v v v v v v v v
body in contrast to infecting the host gut and causing a gastroenteritis, though often mediated by toxins.
v v v v v v v v v v v v v v v v v v
A. Clostridium botulinumv v v
,B. Staphylococcus aureus
v v
C. A and B v v v
D. Salmonella typhi v v
E. Vibrio cholerae
v v
D - CORRECT ANSWER✔✔What term describes microbially mediated anaerobic oxidation of ammonia?
v v v v v v v v v v v
A. methanogenesis v v
B. diazotrophy v
C. anamox v
D. nitrification v
E. autotrophy
v
A - CORRECT ANSWER✔✔A vaccine that protects against diphtheria, pertussis and tetanus (DPT) addresses
v v v v v v v v v v v v v
etiological agents with which of the respective gram reactions.
v v v v v v v v v v
A. +/-/+ v
B. -/-/+ v v
C. +/+/- v
D. -/+/- v v
E. +/+/+ v
B - CORRECT ANSWER✔✔The above referenced DPT vaccine protects against bacterial diseases, the
v v v v v v v v v v v v
etiological agents of which are currently assigned to which respective bacterial phyla (Phylum level)?
v v v v v v v v v v v v v v v
A. Actinobacteria/ Firmicutes/ Proteobacteria
v v v
B. Actinobacteria/ Proteobacteria/ Firmicutes
v v v v
C. Actinobacteria/ Firmicutes/ Archaea
v v v v
D. Actinobacteria/ Proteobacteria/ Fungi
v v v
,E. Proteobacteria/ Firmicutes / Protozoa
v v v v
E - CORRECT ANSWER✔✔Which is/are characteristic of members of the Pseudomonas spp.?
v v v v v v v v v v v
A. respiratory metabolism, usually use molecular oxygen as terminal electron acceptor.
v v v v v v v v v v
B. fluorescent soluble pigments released into media
v v v v v v
C. Entner-Doudoroff glycolytic pathway
v v v
D. gram-negative, non-spore formers with polar flagella
v v v v v v
E. All of the above
v v v v
A - CORRECT ANSWER✔✔What term describes bacteria that can use 1-C organic molecules as a carbon
v v v v v v v v v v v v v v v
source?
v v
A. Methylotroph v
B. Methanogen v
C. Diazotroph v
D. Autotroph v
E. auxotrophv
E - CORRECT ANSWER✔✔Known and laboratory culturable members of Domain Archaea
v v v v v v v v v v
A. all have prokaryotic cells.
v v v v v
B. are often obligate anaerobes.
v v v v v
C. are rare, relative to members of Domains Eukarya and Bacteria.
v v v v v v v v v v v
D. are often thermophiles and acidophiles.
v v v v v v
E. are all of the above.
v v v v v
E - CORRECT ANSWER✔✔Serratia marcesans:
v v v v v
A. red pigment prodigiosin
v v v
, B. used by U.S. military to assess aerial dispersion of bioterrorism agent
v v v v v v v v v v v
C. Phylum Proteobacteria, Class Gammaprotoeobacteria
v v v v
D. microbiology teaching laboratory demonstrating epidemics
v v v v v
E. all of the above
v v v v
E - CORRECT ANSWER✔✔Bradyrhizobium japonicum
v v v v v
A. forms a nitrogen-fixing symbiosis with soybeans.
v v v v v v v
B. may grow chemolithotrophically as well as heterotrophically.
v v v v v v v v
C. is a slow-growing member of Rhizobiaceae.
v v v v v v v
D. synthesizes the heme component of a leghemoglobin.
v v v v v v v v
E. does all of the above.
v v v v v
E - CORRECT ANSWER✔✔Members of the genus Clostridium
v v v v v v v v
A. may produce exotoxins as a primary virulence factor.
v v v v v v v v v
B. produce terminal bulging endospores that make cells look like squash (tennis) racquets.
v v v v v v v v v v v v
C. are in Phylum Firmicutes.
v v v v v
D. are obligate anaerobic gram positive rods.
v v v v v v v
E. are all of the above
v v v v v
E - CORRECT ANSWER✔✔The moles-percent base composition of a DNA molecule may be estimated by
v v v v v v v v v v v v v v
A. quantification of any one of the four bases.
v v v v v v v v v
B. determining Tm (melting temperature) for the DNA.
v v v v v v v v
C. measuring the length of the DNA by electron microscopy.
v v v v v v v v v v
D. asking a taxi driver.
v v v v v
E. all except D.
v v v
already passed,A+ v v
E - CORRECT ANSWER✔✔Microorganisms that "mineralize" organic compounds (select the essence of
v v v v v v v v v v v
mineralization, not from Wikipedia)
v v v v v
A. render them less toxic.
v v v v
B. degrade them to minerals such as the salts of calcium, magnesium and potassium.
v v v v v v v v v v v v v v
C. reduce them to methane.
v v v v v
D. render them water-soluble.
v v v
E. oxidize them to CO2.
v v v v
A - CORRECT ANSWER✔✔Which of the below is notorious in Florida and elsewhere as the cause of necrotic
v v v v v v v v v v v v v v v v v
skin- and flesh-lesions?
v v v
A. Vibrio vulnificus v v
B. V. badassificus v v
C. V. fischeri v v v
D. V. cholerae v v v
E. V. parahemolyticus
v v
B - CORRECT ANSWER✔✔Which causes a true "food poisoning," i.e., elaborates a toxin outside of the host
v v v v v v v v v v v v v v v v
body in contrast to infecting the host gut and causing a gastroenteritis, though often mediated by toxins.
v v v v v v v v v v v v v v v v v v
A. Clostridium botulinumv v v
,B. Staphylococcus aureus
v v
C. A and B v v v
D. Salmonella typhi v v
E. Vibrio cholerae
v v
D - CORRECT ANSWER✔✔What term describes microbially mediated anaerobic oxidation of ammonia?
v v v v v v v v v v v
A. methanogenesis v v
B. diazotrophy v
C. anamox v
D. nitrification v
E. autotrophy
v
A - CORRECT ANSWER✔✔A vaccine that protects against diphtheria, pertussis and tetanus (DPT) addresses
v v v v v v v v v v v v v
etiological agents with which of the respective gram reactions.
v v v v v v v v v v
A. +/-/+ v
B. -/-/+ v v
C. +/+/- v
D. -/+/- v v
E. +/+/+ v
B - CORRECT ANSWER✔✔The above referenced DPT vaccine protects against bacterial diseases, the
v v v v v v v v v v v v
etiological agents of which are currently assigned to which respective bacterial phyla (Phylum level)?
v v v v v v v v v v v v v v v
A. Actinobacteria/ Firmicutes/ Proteobacteria
v v v
B. Actinobacteria/ Proteobacteria/ Firmicutes
v v v v
C. Actinobacteria/ Firmicutes/ Archaea
v v v v
D. Actinobacteria/ Proteobacteria/ Fungi
v v v
,E. Proteobacteria/ Firmicutes / Protozoa
v v v v
E - CORRECT ANSWER✔✔Which is/are characteristic of members of the Pseudomonas spp.?
v v v v v v v v v v v
A. respiratory metabolism, usually use molecular oxygen as terminal electron acceptor.
v v v v v v v v v v
B. fluorescent soluble pigments released into media
v v v v v v
C. Entner-Doudoroff glycolytic pathway
v v v
D. gram-negative, non-spore formers with polar flagella
v v v v v v
E. All of the above
v v v v
A - CORRECT ANSWER✔✔What term describes bacteria that can use 1-C organic molecules as a carbon
v v v v v v v v v v v v v v v
source?
v v
A. Methylotroph v
B. Methanogen v
C. Diazotroph v
D. Autotroph v
E. auxotrophv
E - CORRECT ANSWER✔✔Known and laboratory culturable members of Domain Archaea
v v v v v v v v v v
A. all have prokaryotic cells.
v v v v v
B. are often obligate anaerobes.
v v v v v
C. are rare, relative to members of Domains Eukarya and Bacteria.
v v v v v v v v v v v
D. are often thermophiles and acidophiles.
v v v v v v
E. are all of the above.
v v v v v
E - CORRECT ANSWER✔✔Serratia marcesans:
v v v v v
A. red pigment prodigiosin
v v v
, B. used by U.S. military to assess aerial dispersion of bioterrorism agent
v v v v v v v v v v v
C. Phylum Proteobacteria, Class Gammaprotoeobacteria
v v v v
D. microbiology teaching laboratory demonstrating epidemics
v v v v v
E. all of the above
v v v v
E - CORRECT ANSWER✔✔Bradyrhizobium japonicum
v v v v v
A. forms a nitrogen-fixing symbiosis with soybeans.
v v v v v v v
B. may grow chemolithotrophically as well as heterotrophically.
v v v v v v v v
C. is a slow-growing member of Rhizobiaceae.
v v v v v v v
D. synthesizes the heme component of a leghemoglobin.
v v v v v v v v
E. does all of the above.
v v v v v
E - CORRECT ANSWER✔✔Members of the genus Clostridium
v v v v v v v v
A. may produce exotoxins as a primary virulence factor.
v v v v v v v v v
B. produce terminal bulging endospores that make cells look like squash (tennis) racquets.
v v v v v v v v v v v v
C. are in Phylum Firmicutes.
v v v v v
D. are obligate anaerobic gram positive rods.
v v v v v v v
E. are all of the above
v v v v v
E - CORRECT ANSWER✔✔The moles-percent base composition of a DNA molecule may be estimated by
v v v v v v v v v v v v v v
A. quantification of any one of the four bases.
v v v v v v v v v
B. determining Tm (melting temperature) for the DNA.
v v v v v v v v
C. measuring the length of the DNA by electron microscopy.
v v v v v v v v v v
D. asking a taxi driver.
v v v v v
E. all except D.
v v v
