question
Serratia marcescens
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found growing in bathrooms
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Serratia marcescens
answer
produces prodigiosin (red orange pigment)
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Serratia marcescens
answer
can cause nosocomial infections and urinary tract infections
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Pseudomonas aeruginosa
answer
opportunistic pathogen, associated with various bodily infections
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Pseudomonas aeruginosa
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very resistant to antibiotics, major biofilm producer
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Pseudomonas aeruginosa
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aerobic rod shaped bacteria with polar flagella
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enteric bacteria
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colonize intestinal tract, simple nutrient requirements
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Pseudomonas aeruginosa and Serratia marcescens
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common soil gram neg rod bacterias
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enteric bacteria
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can be seperated into two broad groups by the type and proportion of fermentation products generated by anaerobic fermentation of glucose (mixed acid and butandiol fermenter)
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E col, Salmonella sp., shigella sp.
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mixed acid fermenters
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E coli
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universal inhabitant of the intestinal tract of warm blooded animals.
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E coli
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very diverse metabolism, symbiotic relationship with humans
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E coli's symbiotic relationship w/ humans
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synthesis of vitamin k, assists in preventing pathogenic microbes from colonizing
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E coli
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major model organism for bacterial genetics
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E coli
answer
used for detection of coliforms, assists in ensuring water purity
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Enteropathogenic E coli (EHEC) (EPEC)
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invasive pathogenic strand of Ecoli that targets intestines
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Uropathogenic E. coli (UPEC)
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pathogenic strand of Ecoli that cause urinary tract infections
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Salmonella enterica
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Salmonellosis (typhoid fever)
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Salmonella enterica
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possess pathogenicity islands ( group of genes that turn normal bacteria into pathogenic bacteria allows them to produce toxins)
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Shigella dysenteriae
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Shigellosis (dysentery)
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Shigella dysenteriae
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shiga toxin
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Enterobacter aerogenes,
answer
butandiol fermenter
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E coli
answer
facultative anaerobe
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E. aerogenes
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facultative anaerobe
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Salmonella enterica
answer
facultative anaerobe
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Shigella dysenteriae
answer
facultative anaerobe
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Serratia marcescens
answer
facultative anaerobe
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Bacillus subtilis
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model organism for bacterial chromosome replication and cell differentiation
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Bacillus subtilis
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produces various extracellular hydrolytic enzymes (laundry detergent)
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Bacillus subtilis
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certain strains produce bacitracin ( antibiotic that targets gram pos cell wall)
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Bacillus megaterium
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produces various extracellular hydrolytic enzymes ( penicillin amidase, amylase, glucose dehydrogenase)
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Bacillus megaterium
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certain strands fix nitrogen
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Bacillus thuringiensis
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cry toxin inserts into insect gut cell membrane which leads to paralysis of digestive tract and results in starvation/death
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Bacillus thuringiensis
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useful in agriculture industry, common in pesticides
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Bacillus thuringiensis
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can form crystals in the guts of caterpillars
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Bacillus coagulans
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useful directly to humans, found proprobiotics
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bacillus coagulans
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can do lactic acid fermentation (intestines)
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Bacillus amyloliquefaciens
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beneficial to plants, "root colonizing biocontrol" bacterium
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Bacillus amyloliquefaciens
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can outcompete pathogenic microbes in certain plants and produces "bacterial-destructive (lytic) enzymes"
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Bacillus stearothermophilus
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used in lab setting, used to indicate the effectiveness of an autoclave (ampoules containing Bacillus species)
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purple ampoule after autoclaving
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autoclave is working properly
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purple to yellow ampoule after autoclaving
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autoclave is not working properly ( because the sugar source in the ampoule is reduced and made into acidic product which causes Ph change and the indicator turns yellow)
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Bacillus cereus
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human pathogen causes "fried rice syndrome" :food poisoning (common resident on vegetables and other products in close contact with soil) digestive tract in main target
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bacillus anthracis
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human pathogen, causes anthrax, lethal toxin: tissue necrosis
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bacillus anthracis
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antiphagocytic capsule
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bacillus anthracis (cutaneous)
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causes skin lesion
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bacillus anthracis (inhalation)
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damage respiratory tract, most dangerous
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bacillus anthracis (gastro intestinal)
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damage intestinal tract (ingestion)
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Clostridium botulinum
answer
Botulism
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Clostridium tetani
answer
tetanus (lockjaw)
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Clostridium perfringens
answer
gas gangrene
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