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Microbiology USMLE Step 1 With Questions And 100% DETAILED CORRECT ANSWERS
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Microbiology USMLE Step 1 With Questions And 100% DETAILED CORRECT ANSWERS
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JACKLINEMicrobiology USMLE Step 1 With Questions And 100% DETAILED CORRECT ANSWERS
Terms in this set (475)
Peptidoglycan Gives rigid support protects against osmotic pressure
Cell Wall (gram positives) Major surface antigen, peptidoglycan for support
site of endotoxin and major surface antigen
Outer Membrane
Lipid A induces TNF and IL1
plasma membrane site of oxidative and transport enzymes Lipoprotein bilayer
protein synthesis
ribosome
30s and 50s subunits
Periplasm space between the cytoplasmic membrane and the peptidoglycan wall in gram-negative bacteria
Capsule Protects agains phagocytosis
Microbiology USMLE Step 1
1/8
, Mediate adherence of bacteria to cell surface
Pilus/fimbria
sex pilus form attachment between 2 bacteria
Flagellum motility
Provides resistance to dehydration, heat, chemicals
spore
dipicolinic acid
glycocalyx mediates adherence to surfaces, especially foreign surfaces
Gram Negative Cell membrane has lipopolysaccharide and periplasmic space thin peptidoglycan layer
Gram Positive Teichoic acid, Cell wall, thick peptidoglycan layer
staph/strep
cocci
neisseria
rods clostridium, most enterics
branching filamentous Actinomyces Nocardia
reckettsiae
pleomorphic
chlamydia
spiral spirochetes; leptospira, borrelia, treponema
no cell wall mycoplasma
have no cell wall
Mycoplasma
contains sterols
contain mycolic acid
Mycobacteria
high lipid content
These Rascals May Microscopically Lack Color
Poor Gram Stain
Treponema, Rickettsia, Mycobacterium, Mycoplasma, Legionella pneumophila, Chlamydia
Giemsa Borrelia, Plasmodium, trypanosomes, chlamydia
stains glycogen, mucopolysaccharides
PAS
dx whipples disease
Ziehl Neelsem Acid fast organisms
India Ink Cryptococcus neoformans
silver stain fungi, legionella
congo red amyloid
agar for H influenzae chocolate for factors V and X
Microbiology USMLE Step 1
2/8
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