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Micro 149
Question | Answer |
---|---|
Facultative intracellular | Salmonella Neisseria Brucella Mycobacterium Listeria Francisella Legionella Yersinia Some nasty bugs may liver facultatively |
obligate intracellular | Rickettsia Chlaymydia |
gram stain limited bugs | Treponema (too thin) Ricketsia (intracellular) Mycobacteria (high lipid content cell wall needs acid fast) Mycoplasma (no cell wall) Legionella pneumophilia (intracellular) CHlaymydia (intracellular; lacks muramic acid in cell wall) |
Giemsa stain | Borellia Plasmodium trypanosome Chlamydia |
PAS | stains glyocgen, mucopolysaccharides WHipple's disease |
Ziehl Neelson | acid fast |
india ink | cryptococcus |
silve rstain | fungi, Legionella |
Charcoal yeast extract agar buffered with cysteine and iron | legionella |
eaton's agar | M. pneumoniae |
Lowenstein jensen agar | M. tuberculosis |
Tellurite plate, Loffler's media | C. diphtheriae |
Chocolate agar with factors V (NAD) and X (Hematin) | H. influenzae |
VPN media | N. gonorrhae Vancomycin (inhibit gram positive) Polymxin (inhibit gram negative) Nystatin (inhibits fungi) |
obligate aerobes | Nagging pests must breath Nocardia pseudomonas mycobacterium bacillus |
Encapsulated bacteria | Some Nasty killers have some capsule protection Salmonella Neisseria Klebsiellar H. influ Strep pneumo cryptococcus pseudomonas |
catalase positive bugs | Pseudomonas Aspergillus Nocardia Candida Actinomyces and S. aureus Klebsiella E. coli Serratia |
urease positive bugs | PUNCH -K Proteus ureaplasma Nocardia Cryptococcus H.pylori Klebsiella |
M protein | group A strep helps prevent phagocytosis |
IgA protease | enzyme that cleaves IgA. secreted by SHin - S.pneumo, H influenzae type B, neisseria in order to colonize respiratory mucosa |
protein A | S. aureus binds Fc region of Ig. Prevents obsonization and phagocytosis |