Pre-quiz Questions for Exam 3 Flashcards
A prokaryotic species is defined as a group of closely related organisms that breed among themselves. True or False?
False
In _______________ typing, bacteria are classified based on the types of viruses that can infect them.
phage
Polymerase chain reaction can be used to identify microorganisms even when it is not possible to culture the organisms in the lab. True or False
True
_________________________ are used in identification through a series of questions that have two possible answers each.
Dichotomous keys
Viruses are classified as prokaryotes. True or False?
False
Viruses are not classified as part of any of the three domains. True or False?
True
A eukaryotic species is defined as a group of closely related organisms that breed among themselves. True or False?
True
__________________ are maps that show evolutionary relationships among organisms.
Cladograms
The largest phylum of the Bacteria is the:
Proteobacteria
Many archaea are extremophiles. True or false?
True
The genus __________________ includes filamentous bacteria that can form asexual spores on the end of aerial filaments.
Streptomyces
The bacterium, Epulopiscium, has a volume a million times larger than that of E. coli. True or False?
True
The genus __________________ has some of the most complex life cycles found in bacteria, including the production of fruiting bodies.
Stigmatella
Myxococcus xanthus
Myxococcus
The bacterium, Epulopiscium, has a volume a million times larger than that of E. coli. True or False?
True
___________________ is the study of fungi.
Mycology
The structure used by large multicellular algae to attach to surfaces is called the _______________________.
holdfast
Silica is found in the cell walls of ______________________.
diatoms
Cross-walls found in the hyphae of some fungi are called:
septa
Unicellular algae that are free-floating, including those that cause paralytic shellfish poisoning, are collectively called ______________________.
dinoflagellates
Mushrooms are found in the:
Basidiomycetes
The genus ___________________ is interesting because these protozoa contain chloroplasts and a bright red eyespot.
Euglena
The genus __________________ is the cause of a roundworm disease that is contracted by humans who eat poorly cooked pork from infected pigs.
Trichinella
The amoebas use by extending projections called ________________.
pseudopods
The segment that makes up the body of a cestode is called a:
proglottid
Which one of the following is a cestode (tapeworm)?
Taenia
Which one of the following is a trematode (fluke)?
Paragonimus
The genetic expression of biofilm bacteria is the same as the genetic expression of planktonic bacteria. True or false?
False
The system of cell communication where bacteria can recognize the density of a population is known as _____________ _______________.
quorum sensing
Biofilms are harmful and do not provide any benefits to humans. True or false?
False
Biofilms form a complex vertical structure with water channels that deliver fluid and nutrients deep into the biofilm. True or False?
True
Evidence of biofilms has been found in rocks as old as 3.5 billion years old. True or false?
True
The genetic expression of biofilm bacteria differs from the genetic expression of planktonic bacteria. True or False?
True
Biofilms are harmful and do not provide any benefits to humans. True or false?
False
Biofilms form only on surfaces that stay wet all of the time. True or False.
False
The genetic expression of biofilm bacteria is the same as the genetic expression of planktonic bacteria. True or false?
False
The first synthetic sulfa drug, ________________________, laid the foundation for additional types of synthetic antimicrobials.
sulfanilamide
_____________________ drugs kill their target bacteria.
bactericidal
Which antimicrobial drugs targets the plasma membrane?
polymyxin B
___________________________ are a class of synthetic compounds long used against malaria.
quinolines
The ______________________ disk diffusion test is used at a starting point for determining susceptibility
Kirby-Bauer
Which of the following antimicrobial drugs targets the cell wall?
vancomycin
The first “magic bullet” drug, used as a treatment for syphilis, that was discovered in 1909 was ________________________________,
salvarsan
__________________________ drugs cause a reversible inhibition of growth.
bacteriostatic
