Test your basic knowledge |

Microbiology

Instructions:

Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can study here.
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. How do shigella propel themselves without flagella
double- stranded RNA
Coagulation cascade - DIC
Actic polymerization
Yersinia - enterocolitica - diarrhea (in day care centers) - causes mesenteric adenitis

2. What are the only circular DNA viruses
golgi complex - function
Papilloma - polyoma - hepadnavirus
Degradation of lipids produces acids that damage melancytes and cause hypopigmented and or hyperpigmented patches - occurs in hot humid weather
Gram neg coccobacillary rods - cultured on chocolate agar with factors V and X NAD+ and hematin OR with S. aureus

3. enveloped ssRNA with segmented genome (8)
Influenza virus
Humoral and cell mediate - can revert to virulence
Mold with irregular nonseptate hyphae branching at wide angles
Proteus - klebsiella - H. pylori - ureaplasma - particular kinds have urease

4. Infects prosthetic devices and intravenous catheters by producing adherent biofilms - what bacteria and where do you normally find it
Staph epi - normal skin flora - contaminates blood cultures
Protein A - S. aureus
Dysentery from shiga like toxin - O157:H7 is common serotype - produces HUS
Doxycycline

5. Entamoeba histolytica - spread to humans through contaminated food or water - feeds on tissue in the gastrointestinal tract
Enterovirus esp coxsackievirus - HSV - HIV - West Nile virus - VZV
facultative
amoebic dynsentry
Babesiosis - ixodes - blood smear - quinine and clindamycin

6. What features are unique to salmonella
Have flagella - disseminate hematogenously - produce H2S - symptoms can be prolonged with Abx - typically a monocytic response
E. Coli
ASO titer
S. pneumo - H. flu - Anaerobes - viruses - mycoplasma

7. Of the gram neg bacillus - which ones are enterics
three domains of microorganisms
E. coli - shigella - salmonella - yersinia - klebsiella - proteus - enterobacter - serratia - vibrio - campylobacter - helicobacter - pseudomonas - bacteroides
Parvo - single stranded
MRSA - resistant to beta lactams due to altered penicillen binding protein

8. Look like molds - but cells are prokaryotic; have filamentous growth and some produce asexual spores; Streptomyces produces geosmin ('fresh dirt' smell) and many antibiotics
actinomycetes (3) - description
10%; viral
Cryptococcal meningitis - toxoplasmosis - CMV encelphalopathy - AIDS dementia - PML from JC virus
Anti - HBsAb

9. What bugs produce yellow sulfur granules composed of a mass of filaments and formed in pus
Actinomyces isreallii
Candida
gram stain - definition
capsid - function

10. What are the lab findings of pseudomonas
Coxsackie A - rocky mountain spotted fever and syphillis (CARS)
Aerobic gram pos rod - non lactose fermenting - oxidase pos - blue - green pigment - grapelike odor
Scarlet fever - toxic shock - like syndrome
Traveler's diarrhea - labile toxin/stable toxin - no inflammatino or invasion

11. 80S = 60S + 40S
ribosomes (eukaryotic) - size
Teichoic acid
Entertoxigenic E. coli
Taenia solium - cysticercosis

12. What does neg PPD indicated
S. pyogenes - hemolysin antigen for ASO antibody Which is used in the dx of rheumatic fever
VZV - chickenpox
Cryptococcus neoformans - also encephalitis
No infection - anergic (steroids - malnutrition - immunoCised - sarcoidosis)

13. PNA in CF - burn
Pseudomonas
Rickettsia rickettsii
Staph - enteric GNR - fungi - viruses - pneumocystis in HIV
Entamoeba histolytica

14. What species producing watery diarrhea also produces gas gangrene
C. perfringens
Mycoplasma
penetration (AV)
release (AV)

15. What s. aureus infection is an imporant cause of serious nosocomial and community- acquired infections
Yes carriers - celullar RNA poly transcribes RNA from DNA template - reverse transcriptase transcribes DAN genome from RNA intermediate - virion enzyme is DNA dependent DNA poly
MRSA - resistant to beta lactams due to altered penicillen binding protein
specialized flagella
gas gangrene

16. What causes granuloma inguinale (donovanosis)
Klebsiella granulomatis
HHV-6 roseola
HSV1 and 2 - VZV - CMV - EBV
Louis Pasteur - experiment

17. What bugs are urease pos
CMV retinitis and esophagitis - disseminated M avium intracellulare - cryptococcal meningoencephalitis
Proteus - klebsiella - H. pylori - ureaplasma - particular kinds have urease
SNAP - sulfa for nocardia and actinomyces get pen
Rickettsia and chlamydia - can't make out ATP

18. Alcohol dissolves outer membrane and leaves holes in peptidoglycan - CV-I crystals wash out
Genetic drift - epidemic
Surfers in the tropics
Skin infections - organ abscesses - pneumonia
gram- negative stain - explanation

19. What OI/disease occurs in the mouth and throat of AIDS pts
pili - function
Gram neg rod - poor gram stain - use silver stain - grow on charcoal yeast extract with iron and cysteine
E. Coli produces beta galactosidase
Thursh - HSV - CMV - oral hairy leukoplakia from EBV

20. What is the nl flora of the colon
Shiga like toxin - botulinum toxin - cholera toxin - diptheria toxin - erythrogenic toxin of s. pyogenes
100 micrometers
Meningococci
Bacteroides fragilis > E. coli

21. What serum markers indicate Hep B recovery
Type B capsular polysaccharide conjugated to diptheria toxoid or other protein
Anti - HBsAb - Anti - HBeAb - Anti - HBcAb
double- stranded RNA
Mycobacterium

22. With staph grown on novobiocin - Which is resistant and Which is sensitive
penetration (B)
Chronic disease - positive during window period
Saprohyticus resistant - epidermidis is sensitive - NO StRES
Between 2 and 18 months

23. PNA in CF
smooth ER
Humoral and cell mediate - can revert to virulence
Syphillis - sexual contact
Pseudomonas

24. Mycotoxin
hypertonic solution
some fungi produce ______ that are toxic to humans
yeast and mold stages can be dependent on _____ or ______
Pseudemonas aeruginosa

25. Which bacteria make catalase and which do not

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183

26. What is the presentation and mechanism of toxin in EHEC
Smallpox - although eradicated - could be used in germ warfare Vaccinia - cowpox 'milkmaid's blisters' Molluscum contagiosum - flesh colored dome lesions with central dimple
Dysentery from shiga like toxin - O157:H7 is common serotype - produces HUS
Koch's Postulates 3
Aseptic meningitis

27. How can you distinguish enterococci from nonenterococcal group D
CMV - sexual contact - organ transplants
Antigen found on the surface on HBV - indicates hepatitis B infection
Grow in 6.5% NaCl and bile
Dysuria - frequency - urgency - suprapubic pain - WBCs but not casts in urine

28. Tetanus - toxin prevents relaxation of muscles
Yersinia pestis
Clostridium tetani
Humoral and cell mediate - can revert to virulence
gram- positive stain - color

29. usage of which Abx can lead to c diff.
Trigeminal and dorsal root ganglia
Ferver - night sweats - weight loss - hemoptysis - can be drug resistant
Clindamycin or ampicillin
Pleuritic chest pain - hemoptysis - infiltrates on imaging

30. What aspect of PID is a risk factor fo ectopic pregnancy - infertility - chronic pelvic pain - adhesion
Coxsackie A - hand - foot - mouth dz
Salpingitis
Cryptococcus neoformans
gram- negative cell wall

31. tissue nematode causing skin inflammation and ulceration - org - transmission - tx
Azithromycin
Dracunculus medinensis - in drinking water - niridazole
HHV-6; high fevers followed by diffuse maculopapular rash
algology

32. What does coxaskcievirus do
Yes
Hodgkin lymphoma - endemic Burkitt lymphoma - nasopharyngeal carcinoma
Aspepti meningitis - herpangina (febrile pharyngitis) hand foot mouth dz - myocarditis
HIV - malnutrition - death

33. Cellulitis - osteomyelitis from animal bite: cats and dogs
Trypanosoma bruceii - tsetse fly (painful bite) - blood smear - suramin for blood borne - melarsoprol for CNS infxn
D- K
Pasteurella multocida
infection process of animal viruses (6)

34. fluffy white cottage chees lesions in mouth of HIV pos pts with pseudohyphae microscopicallly
Borrelia burgdorferi
Candida
Viridans is resistant and pneumo is sensitive - OVRPS (overpass)
Pregnant women

35. 10 - 100 micrometers
Kaposi's Sarcoma in HIV pts - sexual contact
infection process of animal viruses (6)
eukaryotes
production of beer and wine

36. Basic shapes - arrangements - motility - staining - oxygen requirements
characteristics of bacteria (5)
Blastomycosis - states east of mississippi river and central america
R. prowazekii
Promote T cell activation and subsequent class switching - alone only IgM antibodies would be produced

37. What is HBeAg
Toxo crosses the placenta
Epiglottitis (cherry- red in kids) meningitis - otitis media and pneumonia
A second - different antigenic determinant of the HBV core - HBeAg indicates active viral replication and therefor high transmissability
C. botulinum

38. yogurt - bread (yeast) - cheese - beer and wine - sauerkraut
food industry
M. kansasii
Inhalation of spores from contaminated wool
>100 - acid labile - destroyed by stomach acid - does not infect GI

39. What are the symptoms of mumps
Parotis - orchitis and aseptic meningitis
Comma shaped - oxidase positive - grows in alkaline media
E. Coli
Red current jelly - nosocomial UTI

40. Minor changes based on random mutation
release (B)
Mycoplasma - have sterols
Genetic drift - epidemic
assembly (B)

41. What is the organism and histological findings for ehrliciosis
Ehrlichia: no rash - granulocytes with berry cluster organisms
tetanus
Permanently disables causing whooping cough via induction of cAMP - turns the off off
spiral - vibrio

42. Simple - special - and differential
Klebsiella pneumo
staining of bacteria
Genital herpes - warts - cervical cancer from HPV
Anti gp120 crosses the placenta

43. 2nd leading cause of community acquired UTI among sexually active women
Staph saprophyticus
Rabies
structures of an eukaryotic cell (5)
Yersinia enterocolitica

44. trophozoite ring form in RBC
pasteurization
Neisseria
Rickettsia and chlamydia - can't make out ATP
Plasmodium

45. pos PAS stain

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183

46. What kind of paralysis does tetanus toxin produce
arrangements - diplo
Endosymbiotic Theory
Sacral ganglia
Spastic - trismus (lockjaw and risus sardonicus)

47. What is the nl flora in the nose
S. epidermidis; colonized by S. aureus
Killed/inactivated
Borrelia burgdorferi
Taenia solium - ingestion of eggs - bendazole

48. Mycobacterium tuberculosis and Mycobacterium leprae
Strep pneumo - klebesiella - H flu type b - N. meningititides - salmonella - group B strep
Enterohemorrhagic E. Coli
medical important mycobacteria
capsid - definition

49. What is the only live attenuated vaccine that can be given to HIV pos pts
Measles - mumps - rubella - MMR
RNA viruses - BOAR = Bunyavirus - Orthomyxovirus - Arenaviruses - Reoviruses
Shingles from VZV - kaposi sarcoma from HHV-8
Staph saprophyticus

50. Glycocalyx - flagella - fimbriae - pili - cell wall
structures of prokaryotic cell
Clue cells - or vaginal epithelial cells covered with bacteria visible under the microscope
Adults - preformed toxin - babies - ingestion of spores in honey
Lactose fermeting enterics - citrobacter - klebsiella - E. coli - enterobacter - serratia