Microbial Growth
The process through which bacterial cells reproduce.
What is binary fission?
A chemical control agent that can be used on body surfaces.
What is an antiseptic?
The mechanism of antibiotic resistance in which a bacterium degrades or alters the structure of the antibiotic itself to reduce its efficacy.
What is drug inactivation?
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The laboratory test that provides a general sense of antibiotic susceptibility, but does not provide information about dosage.
What is a Kirby-Baur disk diffusion assay?
The phase of a bacterial growth curve in which the number of cells is increasing exponentially.
What is log phase?
An agent that slows or stops the replication of bacterial cells without reducing the population size.
What is a bacteriostatic?
The mechanism of antibiotic resistance in which bacteria expel the drug before it can accumulate within the cell.
What is drug efflux?
Proteins that reduce or block transcription by preventing the binding of RNA polymerase at the promoter of a gene.
A test used to determine if a bacterial species is aerobic by detecting the presence of specific electron transport chain proteins.
What is the oxidase test?
The location on a bacterial chromosome where DNA replication begins during the process of cell division.
What is the origin of replication?
A class of antibiotics that targets a very limited range of bacterial species.
What are narrow spectrum antibiotics?
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What is an operon?
Type of agar used to determine information about the ability for a bacterium to acquire iron in a human host.
What is blood agar?
What is bactoprenol?
A characteristic of antibiotics causing them to specifically impact the function of a bacterial cell but not the function of host cells.
What is selective toxicity?
The mechanism through which bacteria acquire new genes.
What is horizontal gene transfer?
The metabolic process that acts to maintain low levels of ATP generation through glycolysis in the absence of oxygen.
What is fermentation?
A test used to determine if a bacterial species performs aerobic respiration by detecting whether it can detoxify hydrogen peroxide.
What is the catalase test?
What are facultative anaerobes?
A specific group of antibiotics that inhibit protein synthesis by preventing the formation of peptide bonds.
What are large (50s) subunit inhibitors?
Integral membrane proteins found in bacterial cells that transport large or charged molecules through the membrane and into the cell.
What are porin channels?
Proteins produced by certain species of bacterial pathogens that result in the lysis of red blood cells for the purposes of iron acquisition.
What are hemolysins?
The laboratory test used to determine the minimum inhibitory concentration of an antibiotic against a particular bacterial species.