Basic Bacteriology Flashcards
disease without colonizations occur because of
toxins
when bacteria transition from harmless to aggressive based upon population density
quorum sensing
what us the prodrome phase
when you start to have mild symptoms
what is the acme phase
symptoms peak
what is convalescence
healing
what is the pili used for
attachment and sex
what does the plasmid DNA do
toxins and antibiotic resistance
what kind of bacteria has LPS in the outer membrane
gram negative
LPS is an example of an _______
endotoxin
what is the enzyme that catalyszes the crosslink to form peptidioglycan
transpeptidase
what antibiotic binds and inhibits transpeptidase
penicillin
what are the two sugars that compose peptidoglycan
NAG and NAM
what type of bacteria have porin channels
gram negative
what type of bacteria are vulnerable to lysozyme and penicillin attack
gram posititve
Gram positive capsules are composed of
teichoic acid
what are the three components of a lpopolysaccharide
- O antigen
- core polysaccharide
- inner lipid A (inflammatory)
LOS is found on what bacteria
Nisseria (not LPS)
LOS is the equivalent of
LPS
what are the physiological response to endotoxin
inflammation, fever, and shock
what is a component of LPS released by lysis of GNRs anf on GPR
endotoxin (LIPID A)
what is bacteria in the blood called
bacteremia
what is sepsis
organ dysfunction
what are the three indications of sepsis
- altered mental state
- tachypnea (>22 bpm)
- low SBP (<100 mmHG)
if the qSOFA is less than two, what is suspected? what if more than one?
simple infection; sepsis
bacteria’s flagella is made out of ______, while eukaryotes flagella is made out of ________.
flagellin; tubulin
what are the key spore formers?
ABC
- actinomyces
- bacillus
- clostridium
bacteria that prefer oxygen, but can live anaerobically
faculatative anaerobe
listeria, yersinia, and aeromonas like
cold. cold. cool
campylobacter likes it
hot
