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59 Cards in this Set
- Front
- Back
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bacterial cell wall
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NAG linked to muramic acid by glycosidic bond
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Gram +
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no phospholipid outer membrane
teichoic acid |
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Flagella spin counter-clockwise
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straight line
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flagella spin clockwise
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tumbling
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obligate anaerobes require what?
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conditions of high reducing intensity
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how many cells/ml for faint turbidity?
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10^6
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what is the antibody response directed agains for fungi?
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CHO portions of glycoproteins
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coenocytic
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multinucleate mass of protoplasm resulting from repeated nuclear division unaccompanied by cell fission
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conidia
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asexual spores
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Lederberg experiment showed?
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antibiotics don't induce resistance, rather they select for it
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what is necessary for recombination?
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recA
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what does transposase do?
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facilitates illegitimate recombination
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transformation
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transfer of genetic info following uptake of naked DNA from outside cell
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Transduction
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transfer of bacterial DNA by phage
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what are RTFs?
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conjugal plasmids with resistance genes to many antibiotics
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MIC
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minimum inhibitory concentration
measure with tube dilution |
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MBC
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minimum bactericidal concentration
tube dilution plated onto agar |
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how do Beta lactam rings work?
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inhibit cell wall crosslinking
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toxic part of LPS
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lipid A
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antigenic part of LPS
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O antigen
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exo A of pseduomonas
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ADP-ribosylates EF-2
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exoS & exoT of pseudomonas
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target host regulatory proteins
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exoU of pseudomonas
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cytotoxic
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UPEC adhesions
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mannose-sensitive
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species that has intimin/tir and how are they delivered?
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E. coli
by Type III secretion system make attaching/effacing lesion espB/D are pore forming and delivered first |
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what does shiga-like toxin cause?
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HUS
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which species make attaching/effacing lesions?
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EHEC and EPEC
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what species makes shiga-like toxin?
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EHEC
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what does ETEC produce?
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Traveler's diarrhea
LT and ST toxin non-invasive |
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what is E. coli O157:H7's distinguishing characteristic?
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sorbitol -
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do salmonella and shigella ferment lactose?
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no
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Vi antigen
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S. typhi
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animal reservoir for S. typhi?
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NONE
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animal reservoir for S. choleraesuis
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pigs
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animal reservoir for shigella?
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none
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does shigella cause bacteremia?
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no
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what does shiga exotoxin do?
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stop protein synthesis
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how is C. psittaci transmitted?
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bird feces
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how is C. pneumoniae transmitted?
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person to person
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how is C. trachomatic transmitted?
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STD
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what do you see when you stain tissue for chlamydia?
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cytoplasmic inclusion bodies
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vector of primary epidemic typhus
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body louse
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vector of endemic murin typhus
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ground squirrel fleas
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vector of rocky mountain spotted fever
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woodland and dog ticks
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vector of rickettsial pox
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mouse mite
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how is Q fever transmitted?
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inhalation of spore-like stage from infected placenta
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vector or erlichosis
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ticks
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+ rxn to toxin
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no prior exposure
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+ antigen DTH
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prior exosure
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what do you use to type H. flu?
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Quellung rxn
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H. flu vaccine
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capsule linked to diphtheria toxoid so as to have increased dependence of T cells and memory
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what kind of toxin does bordetella pertussis produce?
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calmodulin-stimulated adenylate cyclase toxin
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what does Neisseria have instead of LPS?
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LOS
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what can N. meningitidis cause?
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meningitis
Waterhouse-Friderichsen syndrome |
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why isn't type B included in N. meningitidis vaccine?
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too much sialic acid in capusle
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phase variation
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on vs. off
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antigenic variation
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varies type of antigen presented
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where can S. typhi multiply?
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in phagocytic mononuclear cells
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what is Weil-Feix reaction used to diagnose?
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primary epidemic typhus
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