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. What is the fxn and chemical composition of peptidoglycan
Toxoplasmosis
viral shapes
cytoplasm - definition
Gives rigid support - protects against osmotic pressure - sugar backbone with cross linked peptide side chains

2. Where does group B strep colonize
Vagina
Doxycycline
glycocalyx - function
genus

3. What happens when endotoxin activates hagemans factor
Smallpox - yellow fever - VZV - Sabin's polio virus - MMR
Canned food - honey (causing floppy baby)
Coagulation cascade - DIC
Epiglottitis H flu type B

4. What stain shows legionella
special staining of bacteria
flaccid paralysis
Mediate adherence of bacteria to cell surface;sex pilus forms attachment between 2 bacteria during conjugation - glycoprotein
Silver stain

5. What are the two reoviruses and What do they cause
Cryptococcal meningitis - toxoplasmosis - CMV encelphalopathy - AIDS dementia - PML from JC virus
Glycogen - mucopolysaccharides
Mycobacterium TB (Pott's dz)
Reovirus - colorado tick fever - rotavirus - #1 cause of fatal diarrhea in children

6. gummas - tabes dorsalis - general paresis - aortisis - argyll robertson pupils - org and dz
Treponema - tertiary syphillis
No they are T cells reacting to EBV infected cells
Tzanck test - assay for HSV1 - 2 and VZV
yeast

7. What does Anti HBcAg (IgM) indicate
Acute/recent infection
Strongyloides stercoralis - larvae penetrate skin - bendazoles or ivermectin
No cell wall
Candida and aspergillus

8. Histoplasmosis
Chronic - cirrhosis - carcinoma - carriers
many humans would test antibody positive for this
food thickeners
capsid is composed of...

9. What are the 3 structural proteins coded for by the HIV genome
Many treponemas
IgG Anti - HBcAg
Env - gp120 and gp41 - gag - p24 - pol - reverse transcriptase
Clostridium - bacteroides - actinomyces - lack catalse and superoxide dismutase and susceptible to oxidative damage

10. Fever and chills
Koch's Postulates 4
Group B are resistant - group A are sensitive - B- BRAS
malaria symptoms
Klebsiella granulomatis

11. gram pos - weakly acid fast aerobe in soil - causing pulmonary infection in immuncompromised patients
Nocardia asteroides
Neurologica like bell's palsy and cardiac AV block
glycocalyx - description
spiral

12. What do ADP- ribosylating A- B toxins do
Klebsiella
SHiN - strep pneumo - h flu - neisseria
Interfere with host cell function - binding component binds to a receptor on surface of host cell enabling endocytosis - active portion attaches an ADP- ribosyl to a shost cell protein altering protein function
HAV - RNA picornavirus

13. Non - hodgkin lymphoma large cell type often in oropharynx (waldeyer's ring) of HIV pos pt
EBV
C3a - hypotension - edema and C5a - neutrophil chemotaxis
Thursh - HSV - CMV - oral hairy leukoplakia from EBV
HPV - warts (1 - 2 - 6 - 11) - CIN - cervical cancer (16 - 18) vaccine available

14. What is the treatment for c. diff infection
Metronidazole
Owl's eye inculsions
CAMP factor enlarges area of hemolysis formed by S. aureus
Aerobic gram pos rod - non lactose fermenting - oxidase pos - blue - green pigment - grapelike odor

15. How do sporothrix appear on microscopically
Cigar shaped yeast
Naegleria fowleri - freshwater lakes through cribiform plate - amoebas in spinal fluid - amphotericin for survivors
S. aureus
species

16. What are the gram pos coccus (genus)
Shingles/chickenpox - encephalitis - pneumonia - respiratory secretions
Streptococcus - staphylococus
Diploid - retroviruses - 2 ssRNA molecules - all others are haploid
Papilloma - polyoma - hepadnavirus

17. Water aerosols are a risk factor For what nosocomial infection
Legionella
Spongiform encephalopathy and dementia - ataxia and death.
HPV - warts (1 - 2 - 6 - 11) - CIN - cervical cancer (16 - 18) vaccine available
specialized flagella

18. Nucleic acid goes into capsid; tail is attached
ribosomes (eukaryotic) - size
assembly (B)
Trigeminal and dorsal root ganglia
replication for prokaryotes

19. What neisseria is there a vaccine for
biggest danger of toxplasmosis
Legionella
Klebsiella granulomatis
Meningococci

20. Involved in photosynthesis (chlorophyll); contain 70S ribosomes; when hit by light - chlorophyll releases an electron
Transformation or competence
Neurologica like bell's palsy and cardiac AV block
chloroplasts - function
Echinococcus granulosus

21. burns or air
gram- negative stain - color
Pseudomonas
S. pyogenes - hemolysin antigen for ASO antibody Which is used in the dx of rheumatic fever
Treponema

22. What virus is in the rhabdovirus family
Rabies
Nystatin for superficial - ampho B for systemic
Neurologica like bell's palsy and cardiac AV block
IgG Anti - HBcAg

23. surgical wound
medical important mycobacteria
Virbrio cholera
S. aureus
Comma shaped - s - shaped - oxidase positive - grows at 42 C

24. Opportunistic infections - KS - lymphoma - orga and dz
Black necrosis surrounded by edematous ring - caused by letha factor and edema factor
HIV - AIDS
Killed viral vaccine
Streptococcus - staphylococus

25. What is the presentation and mechanism of toxin in EHEC
arrangements - diplo
S. aureus
differential staining of bacteria
Dysentery from shiga like toxin - O157:H7 is common serotype - produces HUS

26. What is the presentation of EIEC and What is the mechanism of the toxin
Invasive - dysentary - shiga like toxin; microbe invades mucosa and toxin causes necrosis and inflammation
IgG Anti - HBcAg
Anti - HBsAb
Meningococci

27. How is HBV transmitted primarily and how long is the incubation period for
arrangements - strepto...
Group B strep
Parenteral - sexual - maternal fecal routes - 3 months
S - definition

28. protozoa causing spiking fevers - hepatosplenomegaly - pancytopenia - dz - org - transmission - dx - tx
what many pathogenic fungi are
Enterobius - ascaris - trichinella
Visceral leishmaniasis - donovani - sandly - macrophages containing amastigotes (lack flagella) - sodium stibogluconate
Cryptosporidium - mycobacterium avium - intracellulare - CMV colitis - non Hodgkin lymphoma from EBV - Isospora belli

29. Which bacteria grow pink colonies on MacConkey's agar
nucleic acid
ribosomes (prokaryotic) - size
Lactose fermeting enterics - citrobacter - klebsiella - E. coli - enterobacter - serratia
A second - different antigenic determinant of the HBV core - HBeAg indicates active viral replication and therefor high transmissability

30. What is the TX for mycoplasma pneumonia
Tetracycline or erythromycin
there can be a ___ stage and a ___ stage within the same genus and species
what envelope contains
Fungi proliferate in blood vessel walls when there is excess ketone and glucose - penetrate cribiform plate - and enter

31. What species producing bloody diarrhea has a serotype O157:H7 - can cause HUS and makes shiga like toxin
HSV1 and 2 - VZV - CMV - EBV
Enterohemorrhagic E. Coli
C tetani
No - erythromycin

32. Osteomyelitis after prosthetic replacement
double- stranded DNA
Surface F protein - causes respiratory epithelial cells to fus and form multinucleated cells
Rubella
S. aureus and S. epidermidis

33. Smallest living cell - fried egg appearance of colonies - no cell wall - contain sterols in cell membrane - cause walking pneumonia
there can be a ___ stage and a ___ stage within the same genus and species
HIV - malnutrition - death
Fever - rash - shock - S aureas - TSST-1
mycoplasma (5) - description

34. Paramecium
cilia
HSV-2 - genital herpes
Red spots with blue/white center on buccal mucosa - rash presents last - spreads from head to toe and includes hands and feet (vs. truncal rash in rubella)
ABC

35. How do bacterial capsules function
CAMP factor enlarges area of hemolysis formed by S. aureus
Antiphagocytic virulence factor
Protozoan - causes chagas dz - or african sleeping sickness
Measles rubeola - measles

36. Bacteriophage
red tide
gram- negative stain - explanation
importance of microorganisms
complex virus example

37. What is the fxn and chemical composition of bacterial pilus/fimbria
Starts quickly and ends quickly
malaria prevention
Edema factor - part of the toxin complex - is an adenylate cyclase
Mediate adherence of bacteria to cell surface;sex pilus forms attachment between 2 bacteria during conjugation - glycoprotein

38. What C. diptheria grows on...
Leptospria - borrelia - treponema
Dysuria - frequency - urgency - suprapubic pain - WBCs but not casts in urine
Tellurite agar
Blastomycosis - states east of mississippi river and central america

39. Protein coat surrounding nucleic acid
pseudopodia
Does not ferment sorbitol
capsid - definition
Clostridium - cornybacterium - bacillus - listeria - mycobacterium (acid fast)

40. Help bacteria to attach to one another
gram- negative stain - color
Comma shaped - oxidase positive - grows in alkaline media
pili - function
botulism

41. What does rubeloa virus cause
five kingdoms of microorganisms
Measles - koplik spots on buccal mucosa are diagnostic
protozoa (3)
actinomycetes (3) - description

42. vaginitis - strawberry colored mucosa - corkscrew motility on wet prep - org and dz
Heat labile toxin that inhibits ACH release from NMJ causing a flaccid paralysis
Severe pneumonia
Chlamydia trachomatis
Trichamonas vaginalis - trichomoniasis

43. How is the presumptive HIV diagnosis made
Gives rigid support - protects against osmotic pressure - sugar backbone with cross linked peptide side chains
ELISA test is sensitive but high false pos rates and low threshold - RULE OUT test - pos test are confirmed with western blot - High false neg - high threshold
envelope is composed of...
release (AV)

44. What organism secretes streptolysin O and What is it used for
Phenotypic missing - infectivity of type B - progeny will of second infection will have coat from virus A
S. pyogenes - hemolysin antigen for ASO antibody Which is used in the dx of rheumatic fever
Common cold
MeninGococci - maltose and glucose - Gonococci - only glucose - both produce IgA protease

45. Which gram neg bacteria are spiral
Influenza virus - parainfluenza virus - RSV - measles virus - mumps virus - rubella virus - rabies virus - HTLV - HIV
helical shape - definition
Leptospria - borrelia - treponema
how wine is spoiled

46. All living things are composed of cells
endospores - definition
Trichomonas - sexual - motile trophozoites on wet mount - metronidazole
Cell Theory
Aspepti meningitis - herpangina (febrile pharyngitis) hand foot mouth dz - myocarditis

47. What immunolgic infections does s pyogenes cause
Tapeworm larvae (intestinal infection) in pork or eggs (neurocystircercosis) in food/water contaminated with human feces
Heat labile toxin that inhibits ACH release from NMJ causing a flaccid paralysis
Rheumatic fever - acute glomerulonephritis
Legionella

48. What are the 2 most common causes of nosocomial infections
Elementary body
Borrelia burgdorferi
N. gonorrhoeae (rare) septic arthritis is more common
E coli causing UTI and S. aureus causing wound infection

49. pos PAS stain

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

50. Long rods that can be rigid or flexible
HBsAg as envelope - can coinfect or superinfect (worse prognosis)
taxonomic hierarchy
Rash on palms and soles migrating to wrists - ankles and then trunk - headach fever - endemic to east coast
helical shape - definition