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Microbiology Exam 3
Terms in this set (39)
A prokaryotic species is defined as a group of closely related organisms that breed among themselves
In _______________ typing, bacteria are classified based on the types of viruses that can infect them.
Polymerase chain reaction can be used to identify microorganisms even when it is not possible to culture the organisms in the lab.
__________________ are maps that show evolutionary relationships among organisms.
Viruses are classified as prokaryotes.
A eukaryotic species is defined as a group of closely related organisms that breed among themselves.
_________________________ are used in identification through a series of questions that have two possible answers each.
Viruses are not classified as part of any of the three domains
In ______________ testing, microbial strains can be differentiated based on different antigens.
Many archaea are extremophiles.
The genus __________________ includes filamentous bacteria that can form asexual spores on the end of aerial filaments.
Helicobacter is a member of the:
The genus __________________ has some of the most complex life cycles found in bacteria, including the production of fruiting bodies.
The bacterium, Epulopiscium, has a volume a million times larger than that of E. coli.
The largest phylum of the Bacteria is the:
Silica is found in the cell walls of ______________________.
Cross-walls found in the hyphae of some fungi are called:
___________________ is the study of fungi.
Mushrooms are found in the:
The body of a multicellular algae is called a ___________________.
Unicellular algae that are free-floating, including those that cause paralytic shellfish poisoning, are collectively called ______________________.
Which one of the following is a trematode (fluke)?
The genus ___________________ is interesting because these protozoa contain chloroplasts and a bright red eyespot.
The genus __________________ is the cause of a roundworm disease that is contracted by humans who eat poorly cooked pork from infected pigs.
The amoebas use by extending projections called ________________.
The segment that makes up the body of a cestode is called a:
Which one of the following is a cestode (tapeworm)?
Biofilms are harmful and do not provide any benefits to humans.
The system of cell communication where bacteria can recognize the density of a population is known as _____________ _______________.
The genetic expression of biofilm bacteria differs from the genetic expression of planktonic bacteria.
Biofilms form a complex vertical structure with water channels that deliver fluid and nutrients deep into the biofilm.
Biofilms form only on surfaces that stay wet all of the time.
Evidence of biofilms has been found in rocks as old as 3.5 billion years old.
Biofilms form a flat, uniform matrix of cells across a surface.
The genus of bacteria responsible for the production of the antibiotic cyclohexamide is _________________.
Biochemical Oxygen Demand
"BOD" in sewage treatment refers to:
__________________ is the process gardeners use to convert plant remains into the equivalent of natural humus.
Activated sludge contains large numbers of sewage-metabolizing microbes.
In the United States, the indicator organisms used to monitor sewage contamination in freshwater are ____________________ bacteria.
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