Bacteria Flashcards
what are 4 characteristics about bacteria
prokaryotic - no nucleus
single circular DNA
peptidoglycan wall
70S ribosomes
what are the 3 bacteria types based on cell wall
lacking cell wall
flexible cell wall
rigid cell wall
what is/are the bacteria that lack a cell wall
mycoplasma pneumonia
mycoplasma pneumoniae is also referred to as
atypical walking pneumonia
examining patient and there xray of lungs looks worse than the actual patient
mycoplasma pneumonia
or
atypical walking pneumonia
what are the 4 bacteria that have a flexible cell wall
all spirochetes : (BBLT) borrelia burgdorferi borrelia recurrentis leptospira interogans trepenoma pallidum
the spirochetes (flexible cell wall) below cause what disease?
leptospira interogans
borrelia burgdorferi
borrelia recurrentis
trepenoma pallidum
borrelia burgdorferi - lyme disease
borrelia recurrentis - relapsing fever
leptospira interogans - weil disease
trepenoma pallidum - syphilis
the spirochetes (flexible cell wall) below look like what under microscope?
borrelia burgdorferi - big spirochete
borrelia recurrentis - big spirochete
leptospira interogans - spirochetes with terminal hook
trepenoma pallidum - thin spirochetes with periplasmic flagella
what does weil disease present as
bacteria - leptospira interogans
hemorrhage and jaundice
what does lyme disease present as
bacteria - borrelia burgdoferi
bulls eye rash - erythema chronicum migrans
with joint pain
what does borrelia recurrentis present as
relapsing fevers
fever comes and goes
what does syphilis present as
primary
secondary
tertiary
“painless” genital ulcer
primary - hard painless chancre*
secondary - condylmata lata and maculopapular rash
tertiary - neurosyphilis, gummas, argryll robertsons pupil, tabes dorsalis
latency - may not have symptoms
what are the bacteria with rigid cell walls? because they cant make what?
these are either obligate intracellular organisms (means they cant make ATP that must live inside the host cell) or free living bacteria
what are the different types of bacteria that contain a rigid cell wall
chlamydia psittaci
chlamydia trachomatis
rickettsia (many types)
ehrlichia chafeensis
bartonella hensaelae
what rigid cell wall bacteria causes bird fanciers diseae?
chlamydia psittaci
what are the different types of chlamydia trachomatis
chlamydia trachomatis
type A, B, C - trachoma - africa, blindness, chronic disease
type D-K - reiters syndrome - conjunctivits, urethritis, arthritis
type L1,2,3 - lymphogranuloma venerum - genital ulcers with draining bubbles
what are the symptoms of rickettsia
fever
rash on wrists
typhus on trunk
rickettsia rickettsia causes what disease? what is the vector?
rocky mountain (spotted) fever
wood ticks
rash on wrist and ankles
rickettsia prowazekii causes what disease? what is the vector?
ePIdemic typhus
lice or louse
rickettsia typhi causes what disease? and what is the vector?
murine eNdemic typhus
rat fleas
rickettsia quintana causes what disease? what is the vector?
trench fever
lice or louse
rickettsia tsutsugamishi causes what disease? what is the vector?
scrub typhus
mites
what does the ehrlichia chafeensis causes what symptoms?
what is the vector?
flu like symptoms
long star tick
what disease does barteonella henselae causes what disease
cat scratch fever
how does cat scratch fever get transmitted
being scratched by infected cats
what is a characteristic of free living bacteria
all contain rigid cell walls*
gram stainable wall
positive and negative coccus, bacillus, and vibrio
staphylococcus bacteria are gram _ and catalase _ and appear to look like __ when stained
gram positive
catalase positive
bunches of grapes
what are the 6 diseases caused by staph aureus
STOICE scaled skin syndrome toxic shock syndrome osteomyelitis impetigo carbuncles subacute endocarditis
what staphylococcus organism causes UTI in teenagers? will there be nitrates in the urine?
staphylococcus saprophyticus
no nitrates in urine
patient presents with honey crusted lesions around the mouth… what is DX
impetigo caused by staph aureus or strep pyogenes
streptococcus bacteria are gram _ and catalase _ and appear to look like __ when stained
gram positive
catalase negative
strips
what are the 6 diseases caused by streptococcus pyogenes
SERGIS strep throat - GABHS erysipelas rheumatic fever glomerulonephritis impetigo scarlet fever
streptococcus pyogenes classified as what?
streptococcus agalactiae is classified as what?
streptococcus pneumonia is classified as what?
streptococcus viridans is classified as what?
lancefield group A beta-hemolytic diplococci - GABHS
lacefield group B beta-hemolytic diplococci - GBBHS
alpha hemolytic
alpha hemolytic
what streptococcus bacteria is associated with dental cavities and affects the heart valves/endocarditis?
streptococcus mutans (viridans)
what streptococcus bacteria is occurs with meningitis and otitis media
streptococcus pneumonia
MOP - meningitis, otitis media, pneumonia
patient presents with rust colored sputum and sinusitis.. what is DX
streptococcus pneumonia
what streptococcus bacteria is found in vagina of female carriers and causes meningitis and septicemia in newborns?
streptococcus agalactiae
neisseria gonorrhea is gram _
gram negative
what medium is used for neisseria gonorrhea
what stain
thayer martin chocolate agar
glucose fermenting stain
what medium is used for neisseria meningitidis
what stain
thayer martin chocolate agar
maltose and glucose fermenting stain
what medium is used for mycobacterium tuberculosis
what stain
lowenstein jensen medium
ziehl neelsen stain
which bacteria causes gonorrhea, septic arthritis, and ophthalmia neonatorum?
neisseria gonorrhea
which cocci bacteria causes meningitis and meningococcemia
neisseria meningitidis
which cocci bacteria causes TB
mycobacterium tuberculosis
which cocci bacteria is faintly gram stainable and have thick waxy wall of mycolic acid
mycobacterium tuberculosis
which cocci bacteria is only seen in armadillos and foot pads of suckling mice
mycobacterium leprae
which cocci bacteria prefers cool temperatures like skin and peripheral nerves
mycobacterium leprae
causes leprosy and lepromatous lesions
all bacilli bacteria are gram _
exceptions?
bacilli bacteria are all gram negative
except bacillus listeria clostridium corynebacterium
all bacteria are gram negative except
BLCCSS - gram + bacillus listeria clostridium corynebacterium staphylococcus streptococcus
what bacillus is a spore forming rod?
bacillus anthracis
bacillus anthracis causes what diseases?
woolsorters disease - lung infection
- inhaled spores from animal hides or wool
or
malignant pustules - skin infection