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Test your basic knowledge |
Microbiology
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Study First
Subject
:
engineering
Instructions:
Answer 50 questions in 15 minutes.
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study here
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Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. What do lab diagnostics show for aspergillus
Vagina
Mold with septate hyphae that branch at acute angles
A second - different antigenic determinant of the HBV core - HBeAg indicates active viral replication and therefor high transmissability
Salpingitis - endometritis - hydrosalpinx - tubo - ovarian abscess; can lead to Fitz - High - Curtis sydnrome - infectino of liver capsule and violin string adhesions of parietal peritoneum to liver
2. What is the nl flora in the nose
S. epidermidis; colonized by S. aureus
eukaryotic organelles - definition
staining of bacteria
Trichinella spiralis - undercooked meat usually pork - larvae encyst in muscle - bendazoles
3. How do sporothrix appear on microscopically
Cigar shaped yeast
Poliovirus - coxsackievirus - echovirus - HAV
Heat labile toxin that inhibits ACH release from NMJ causing a flaccid paralysis
Cycles occur every other day: dormant form in liver
4. meningitis in HIV pos patient with india ink stain revealing yeast with narrow based budding and large capsule
35 to 37 weeks - intrapartum pen prophylaxis
Does not ferment sorbitol
mycoplasma (5) - description
Cryptococcus neoformans - also encephalitis
5. unimmunized child with meningitis - microbe colonized the nasopharynx can lead to myalgia and paralysis
None - but are colonized rapidly after birth
H flu type B
Bartonella henselae
Encapsulated or not - positive if encapsulated bug is present; capsule swells when specific anticapsular antisera are added
6. This infxn is usually asymptomatic in mom or mono - like illness causing hearing loss - petechial rash in the neonate - org and mode of transmission
Plasmodium
Mycoplasma - C. pneumo and S pneumo
Elevated CRP and ESR
CMV - sexual contact - organ transplants
7. What diseases can HSV 1 cause and What is the route of transmission
Weil Felix test
EBV
HIV - AIDS
Gingivostomatitis - keratoconjunctivitis - temporal lobe encephalitis - herpes labialis - respiratory secretions - saliva
8. Which two bacteria are gram pos rods forming long braching filaments resembling fungi
Actinomyces and nocardia
Transcribe negative strand to positive - RNA dependent RNA polymerase
Smallpox - yellow fever - VZV - Sabin's polio virus - MMR
Insidious onset - HA - non productive cough - diffuse interstitial infiltrate
9. What does p24 do
Capsid protein
No - erythromycin
Francesco Redi - experiment
H flu
10. How do shigella propel themselves without flagella
algology
Toxplasmosis
C. perfringens
Actic polymerization
11. What kind of exotoxin does b. anthracis have
Clostridium perfringens
Edema factor - part of the toxin complex - is an adenylate cyclase
ASO titer
ribosomes (prokaryotic) - size
12. What features are common to both salmonella and shigella
C. diptheriae
Nematode in undercooked meat
Both are lactose fermenters - both invade intestinal mucosa and can cause blood diarrhea
Lynn Margulis - gen. information
13. What is the organism for rocky mountain spotted fever (tick)
Rickettsia rickettsii
Nl/inc - inc lymphos - nl - inc - nl
N. meningitidis - enterovirus - s pneumo - HSV
Reticulte body - in cytoplast of host
14. Lobe- like projections of the cytoplasm Amoeba
specific
Cryptococcus neoformans
pseudopodia
Phenotypic missing - infectivity of type B - progeny will of second infection will have coat from virus A
15. How is legionella detected clinically
Antigen in vaccines
chromosome - function
Antigen in urine
cilia
16. Other than thrush and vaginitis - What are the other clinical manifestations or candidiasis
Ingestion of preformed toxin
15-20 - atypical lymphocytes
M. avium intracellulare
Diaper rash - endocarditis in IVDU - disseminated candidiasis - chronic mucocutanous candidiasis
17. What does coxaskcievirus do
Aspepti meningitis - herpangina (febrile pharyngitis) hand foot mouth dz - myocarditis
Heavily encapsulate yeast - not dimorphic culture on saboouraud's agar - india ink stain - found in soil pigeon droppings - latex agglutination test detects polysaccharide capsular antigen
Resistant
Parenteral - sexual - maternal fecal routes - 3 months
18. Require high salt concentrations
spiral - spirillum
trichomoniasis...
halophiles
Poliovirus - coxsackievirus - echovirus - HAV
19. What is the difference in mechanism between cholera - pertussis and E. coli with anthrax
Inc - inc PMNs - inc - dec
HIV - AIDS
Synthesized dsDNA from RNA; dsDNA integrates into host genome
The first 3 act via ADP ribosylation causing permenately activating adenylate cyclase - while anthrax edema factor is itself an adenylate cyclase causing an inc in cAMP
20. What is the organism and histological findings for ehrliciosis
Ehrlichia: no rash - granulocytes with berry cluster organisms
Loa loa - deer/horse/mango fly - diethylcarbamazine
Topocal miconazole - selenium sulfide
Prior HAV infection - protects against reinfection
21. What is gardnerella associated with
Metabolic activity without division
Cryptococcal meningitis - cryptococcosis - soap bibble lesions in brain
Sexual activity - but not an STI
Reactivation HSV - cyrptosporidious - isospora - disseminated coccidioidomycosis - pneumocystis PNA
22. cestode causing intestinal tapeworms - org - transmission - tx
No - erythromycin
Pseudomonas
Pneumocystis jerovici PNA - TB - histoplasmosis
Taenia solium - ingestion of larvae encysted in undercooked pork - praziquantel
23. What virulence factor binds Fc region of Ig - prevents opsonization and phagocytosis and what bug has it
ImmunoCised - or their close contacts
Cryptosporidium
Febrile pharyingitis - acute hemorrhagic cystitis - pneumonia - conjunctivitis (watery)
Protein A - S. aureus
24. Toxoplasma gondii - only sexual phase takes place in intestinal tract of the cat - organism ingested by the cat via infected rodents - humans infected by ingesting undercooked meats or by direct contact with cat feces
Coded by beta prophage - inhibits synthesis via ADP ribosylation of EF-2
Chronic - cirrhosis - carcinoma - carriers
archaea domain
Toxplasmosis
25. pruritic lesions with central clearing resembling ring - dz and organism
Tinea pedis - cruris - corporis - capitis - dermatophytes: microsporum - trichophyton - epidermophyton
Gardnerella vaginalis
S. epidermidis
Vanc resis enterococci and are important cause of nosocomial infection
26. what bug grows on charcoal yeast extract agar buffered with cysteine
botulism
Parenteral - sexual - maternal fecal routes - 3 months
gram- negative cell wall
Legionella
27. Cilia - flagella - cell wall* - cytoplasm - ribosomes
botulism
mitochondria - function
structures of an eukaryotic cell (5)
Antigen in urine
28. What are the obligate anaerobes and What do they lack (and hence suscpetible to)
Coccidiodiomycosis - southwestern US - CA - San Joaquin Valley valley fever - spherules
Blocka glycine and GABA release - inhibitory NTs from Renshaw cells in spinal cord
Clostridium - bacteroides - actinomyces - lack catalse and superoxide dismutase and susceptible to oxidative damage
M. avium intracellulare
29. Botulism - prevents contraction of muscles - SIDS
Viridans is resistant and pneumo is sensitive - OVRPS (overpass)
Protozoan - causes chagas dz - or african sleeping sickness
Clostridium botulinum
Fever diarrhea - headache - rose spots on abdomen
30. This rash begins at the head and moves down; postauricular lymphadenopathy - agent and dz
aerobic
Toxo crosses the placenta
Rubella german measles
S. pneumo - H. flu - Anaerobes - viruses - mycoplasma
31. What is yellow fever transmissed by and What are the symptoms
Teichoic acid
Aedes mosquitos with monkey or human resevoir -; high fever - black vomitus - and jaundice
Salpingitis
M. tuberculosis
32. What does candida result in with immunoCised pts
3 groups in archaea
Oral and esophageal thrush
Cryptococcal meningitis - cryptococcosis - soap bibble lesions in brain
B. cereus
33. Will show special structures
special staining of bacteria
CMV - sexual contact - organ transplants
infection process of bacteriophage (5)
M. pneumoniae
34. Which flaviviruses are also arboviruses and which are not
Legionella
Yellow fever - dengue - st. louis encephalitis - west nile virus - HCV not
Capsid protein
Pleuritic chest pain - hemoptysis - infiltrates on imaging
35. osteomyelitis after cat and dog bites or scratches
Pasteurella multocida
S. aureus
Heat labile toxin
HIV - sexual
36. In the bunyavirus family which are arboviruses and which are not
Metabolic activity without division
HCV
California encephalitis - sandfly/Rift Valley fevers - crimean - congo hemorrhagic fever Not - hantavirus causing hemorrhagic fever pneumonia
Togavirus - german 3 day measles
37. A waxy substance that retains carbolfuchsin
mycolic acid - definition
many humans would test antibody positive for this
Oral thrush - tinea pedis - reactivation VZV - reactivation TB - bacterial infxns (H flu - S pneumo - Salmonella)
Only humoral - stable
38. HaemoPhilus causes....
Yes
spiral - vibrio
No cell wall
Epiglottitis (cherry- red in kids) meningitis - otitis media and pneumonia
39. What is legionnaires disease
Epiglottitis (cherry- red in kids) meningitis - otitis media and pneumonia
Chronic - cirrhosis - carcinoma - carriers
Severe pneumonia
lysozyme
40. What diseases can VZV cause and What is the route of transmission
Heat labile toxin
Strep pyogenes and scarlet fever
Shingles/chickenpox - encephalitis - pneumonia - respiratory secretions
A lipopolysaccharide found in the outer membrance of gram neg bacteria
41. What is the fxn and chemical composition of the plasma membrance in bacteria
M. tuberculosis
Accommodate but does not react - associated with tertiary syphillis
Side of oxidative transport of enzymes - lipoprotein layer
CD4 less than or equal to 200 - or HIV pos with AIDS defining conditino like pneumocytsis jerovici or a CD4/CD8 < 1.5
42. How can you distinguish enterococci from nonenterococcal group D
Rocky Mountain Spotted Fever
Apices of lung - immune system compromise - or anti - TNF alpha use
Grow in 6.5% NaCl and bile
Chronic - cirrhosis - carcinoma - carriers
43. What Oi/disease occurs on the genitals of AIDS pts
Mediate adherence of bacteria to cell surface;sex pilus forms attachment between 2 bacteria during conjugation - glycoprotein
Clostridium - cornybacterium - bacillus - listeria - mycobacterium (acid fast)
Reassortment
Genital herpes - warts - cervical cancer from HPV
44. With strep grown on optichin - which are sensitive and which are resistant
methanogens
RNA hepevirs - transmitted enterically and causes water borne epidemics - resembles HAV in course - severity - incubation - high mortality in pregnant women
Grow in 6.5% NaCl and bile
Viridans is resistant and pneumo is sensitive - OVRPS (overpass)
45. What is the most invasive H flu disease caused by and what virulence factor does it produce
Type B protease IgA
E. coli - proteus
Thursh - HSV - CMV - oral hairy leukoplakia from EBV
vaginal yeast infections can be caused by this
46. Which are the RNA nucelocapsid viruses
ADP- R AB toxin - inactivates EF-2; causes pharyngitis and pseudomembrane in the throat (similar to pseudomonas exotoxin A)
golgi complex - function
Enteroviruses - rhinovirus - reovirus (rotavirus)
Aureus does - epidermidis and group B do not
47. What are prion disease caused by
Conversion of a normal cellular protein termed prion protein (PrPc) toa beta pleated form (PrPsc) Which is transmissible - resists degradation and facilitates conversion of still more PrPc to PrPsc
Salpingitis - endometritis - hydrosalpinx - tubo - ovarian abscess; can lead to Fitz - High - Curtis sydnrome - infectino of liver capsule and violin string adhesions of parietal peritoneum to liver
MeninGococci - maltose and glucose - Gonococci - only glucose - both produce IgA protease
Nocardia asteroides
48. which mycobacterium is also pulmonary with TB- like symptoms and not M. tuberculosis
C. botulinum
M. kansasii
Transcribe negative strand to positive - RNA dependent RNA polymerase
specific
49. What species causes bloody diarrhea - is comma or S shaped and grows at 42C
myc/myo means
Campylobacter
B19 virus - aplastic crisis in sickle cell - slapped cheek rash in kids - erythema infectosum (5th disease) - RBC destruction in fetus leads to hydrops fetalis and death - pure RBC aplasia and RA like symtpoms in adults
fimbriae - function
50. What drug is give as prophylaxis for close contacts of of meningococci
Meningococci
Rifampin
Fungi (pneumocystis) - legionella
Food - fingers - feces - flies
Sorry!:) No result found.
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