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22 Cards in this Set
- Front
- Back
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what type of bacteria can you not apply Koch's postulates to
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obligate intracellular pathogens
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if daughter cells dont separate after the completion of transverse wall during binary fision then what might result
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filaments aggregate (this is common with cocci and is very stable)
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four functions of the cytoplamic membrane
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1. oxidative enzymes
2. enzymes for external wall synthesis 3. selective transport (nutrient) 4. secretes toxins |
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bacterial cell wall is made up of a polymer of
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NAG - muramic acid (bound by glycosidic bond)
"peptoglyccan or mucopeptide" cross linking between amino acid side chains |
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nucleoid does not have what two things that eukaryotes do
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no chromosomes
no membrane |
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periplasmic space is only seen in what kind of bacteria
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gm -
is between the CM and OM |
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penicillinase is found where in bacteria
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periplasmic space
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peritrichous flaggella vs. polar
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peritrichous is all over and polar is on one end of cell
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flagella moving in clockwise way produces what kind of movement
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tumbling
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flagella moving in a counter clockwise way produces what kind of movement
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straight line movement
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F pili is important for
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bacterial conjugation - (sex pili)
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Type IV pili is important for
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twitching movement (extension and retraction)
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are spores highly differentiated
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yes -
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endospore
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spore w/in bacterial cell
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what does it mean that the the outer coat of a spore is proteinaceous
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different than parent
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three types of bacterial membrane transport
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1. facilitated diffusion (carrier mediate)
2. phosphoenol pyruvate 3. Active Transport |
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type of membrane transport where chemical is transformed during transport
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phosphoenl pyruvate
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to test host w/ fungus
host cells are saponified by these two things leaving carbon rich wall of fungus |
NaOH/KOH mount
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used to distinguish bacterial vs fungal colonies
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saline wet mount
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histolotical stains which react w/ cell wall carbohydrate
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india ink
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S. aureus
Strep. pneumoniae Listeria moncytogenes are all gm? |
gram +
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E.coli
Neisseria are grm? |
gram -
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