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Test your basic knowledge |
Microbiology
Start Test
Study First
Subject
:
engineering
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. Toxic effect with oysters and mollusks
red tide
yeast
Francisella tularenis
Chronic monoarthritis and migratory polyarthritis
2. superficial neoplastic proliferation of vasculature in HIV pos pt where biopsy reveals lymphocytic inflammation
Borrelia burgdorferi
mycology
HHV-8 - KS
Does not ferment sorbitol
3. What species causes bloody diarrhea - is comma or S shaped and grows at 42C
single- stranded RNA
Campylobacter
Salmonella
ABC
4. Bacillus - coccus - and spiral
JC virus causing PML
exceptions to Koch's Postulates 1
Parvo - single stranded
basic shapes of bacteria
5. Pink
Elementary body
gram- negative stain - color
eukarya domain
Bartonella sp
6. What is pontiac fever
IVDU
cell membrane - function
Mild flulike symptoms with legionella
Clostridium perfringens
7. What toxin from E. Coli induces cAMP
Borrelia - plasmodium - tryapanosomes - chlamydia
Heat labile toxin
importance of microorganisms
ribosomes (eukaryotic) - size
8. What is the TX for pneumocystis jerovici
No infection - anergic (steroids - malnutrition - immunoCised - sarcoidosis)
Taenia solium - ingestion of eggs - bendazole
Actinomyces and nocardia (weakly acid fast)
TMP- SMX - pentamidine - dapsone - start proph when CD4 drops below 200
9. What happens in stage 2 of lyme disease
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10. What are agryll roberston pupils
replication (AV)
Accommodate but does not react - associated with tertiary syphillis
microaerophilic
Shiga like toxin - botulinum toxin - cholera toxin - diptheria toxin - erythrogenic toxin of s. pyogenes
11. In the bunyavirus family which are arboviruses and which are not
Negative
Catalase pos organisms - remove H2O2 leading to infection - staph
Site of endotoxin (LPS) - major surface antigen - lipid A induces TNF and IL-1 - polysaccharide is the antigen
California encephalitis - sandfly/Rift Valley fevers - crimean - congo hemorrhagic fever Not - hantavirus causing hemorrhagic fever pneumonia
12. Viruses are not considered living; they need to be in a cell; and they do not grow on artificial media
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13. urethritis - cervicitis - PID - prostatits - epididymitis - arthritis - creamy purulent discharge - org and dz
prokaryotes
N. gono causing gono
release (AV)
Entamoeba his - cysts in water - serology/trophozoites or cysts in stool/RBC in cytoplasm of entamoeba - metronidazole and iodquinol
14. The receptor sites for host cell in an enveloped virus
what envelope contains
Fever - malaise leading to agitation - photophobia - hydrophobia leading to paralysis - coma and death
Anti - HBsAb - Anti - HBeAb - Anti - HBcAb
PCR/Viral load
15. What happens in EBV mononucleosis - and what cells does it infect
double- stranded RNA
C. trachomatis (L1- L3) - lymphgranuloma venereum
B cells - fever hepatosplenomegaly - pharyngitis - lymphadenopathy
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
16. What can cause food poisoning in reheated meat dishes
Edema factor - part of the toxin complex - is an adenylate cyclase
Itraconazole or potassium iodide
Surfers in the tropics
C. perfringens
17. What viruses make up the PaRaMyxovirus family and What do they do
Parainfluenza - croup - RSV - bronchiloitis in babies - Rx - ribavirin - Rubeola (Measles) Mumps
specialized flagella
assembly (B)
actinomycetes (3) - description
18. Circular and haploid - only one per cell - no nucleus
Reverse transcriptase - HIV - HTLV - T cell leukemia
chromosome - description
C tetani
RNA viruses - BOAR = Bunyavirus - Orthomyxovirus - Arenaviruses - Reoviruses
19. Study of protozoans
Dark field microscopy
how many degrees celsius for mold?
Cytoplasmic inclusions seen on giemsa stain or fluorescent antibody- stained smear
protozoology
20. Bats can carry _____ - but birds do not
Children; parainfluenza (croup seal like barking cough) - mumps - measles and RSV (bronchiolitis - PNA) in infants
Headache - fever - rash (vasculitis) - obligate intracellular that need CoA and NAD+
histoplasmosis
Sexual activity - but not an STI
21. Are there carriers for HDV
Preallergic lymphatic or hematogenous dissemination - reactivation in adult life
HBsAg - HbeAg - and IgG Anti - HBcAg
Mice - deer
Yes
22. Cilia - flagella - cell wall* - cytoplasm - ribosomes
Gonorrhea - septic arthritis - neonatal conjunctivitis - PID - fitz - hugh curtis
Heat labile toxin that inhibits ACH release from NMJ causing a flaccid paralysis
structures of an eukaryotic cell (5)
arrangements - staphylo
23. What does aspergillus cause
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24. Fever and chills
Protein A - S. aureus
malaria symptoms
S. aureus - Strep pyogenes - group B strep - listeria monocytogenes
C tetani
25. How does invasive aspergillosis present in the HIV pos pt
Pleuritic chest pain - hemoptysis - infiltrates on imaging
Invasive - dysentary - shiga like toxin; microbe invades mucosa and toxin causes necrosis and inflammation
Echinococcus granulosus - ingested eggs in dogs feces - surgeons inject ethanol before removal to kill daughter cysts - bendazoles
Rickettsia and chlamydia - can't make out ATP
26. What is the TX for sporthrix
Elementary body
Itraconazole or potassium iodide
Catalase pos microbes - S. aureus - Nocardia - aspergillus
Disseminated disease with constintutional symptoms including maculopapular rash on palms and soles - condylomata lata
27. Which gram neg bacteria have pleomorphic morphology
Salmonella
Rickettsiae - chlamydia (Giemsa)
Inc - inc PMNs - inc - dec
helical shape - definition
28. Brain abscesses in HIV pos pts with ring enhancing lesions on imaging
Toxoplasmosis
M. tuberculosis
Toxic shock syndrome (TSST-1) - scalded skin syndrome (exfoliative toxin) - rapid onste fod poisoning (enterotoxin
Lymph nodes
29. What C. diptheria grows on...
Tellurite agar
None - but are colonized rapidly after birth
Koch's Postulates 2
Doxycycline
30. Virus is engulfed by host cell
Bad xray - worse than pt - high titer of cold agglutinins (IgM) which can agglutinate or lyse RBCs - grown on Eaton's agar
HBsAg as envelope - can coinfect or superinfect (worse prognosis)
Treponema
endocytosis...
31. Unimmunized child with a rash beginning at head and moving down - preceded by cough coryza and conjunctivitis and blue white spots on buccal mucosa
Nystatin for superficial - ampho B for systemic
Gardnerella vaginalis
Measles
Pseudomembranous (grey- white membrane) pharyngitis with lymphadenopathy
32. Water moves into the cell; cell wall is strong = contains the swelling - cell wall is weak = osmotic lysis
Actic polymerization
hypotonic solution
SNAP - sulfa for nocardia and actinomyces get pen
plant kingdom
33. In who do you see meningitis from h flu type b
Unimmunised kids
histoplasmosis
H flu type B
Robert Koch
34. What species causing watery diarrhea is comma shaped organism producing a rice water diarrhea
Parainfluenza - croup - RSV - bronchiloitis in babies - Rx - ribavirin - Rubeola (Measles) Mumps
Acute or chronic - vaccine is HBsAg - reverse transcriptase though not a retrovirus
Virbrio cholera
Bartonella sp
35. painful genital ulcer - inguinal adenopathy- org and dz
Pseudomonas
Anton Van Leeuwenhoek
Haemophilus ducreyi - chancroid
Transcribe negative strand to positive - RNA dependent RNA polymerase
36. Prevents osmotic lysis (cell bursting)
Rotavirus - dsRNA reovirus - villous destruction with atrophy leads to dec absorption of Na and H2O - day care centers and kindegartnes
viruses
Phenotypic missing - infectivity of type B - progeny will of second infection will have coat from virus A
cell wall - function
37. Nucleic acid goes into capsid; tail is attached
assembly (B)
cytoplasm - definition
Anti gp120 crosses the placenta
Contains a variety genes for antibiotic resistance - enzymes and toxins; DNA
38. Why aren't naked viruses destroyed in the gut (A and E)
Children
RNA viruses - BOAR = Bunyavirus - Orthomyxovirus - Arenaviruses - Reoviruses
Food - fingers - feces - flies
No envelope
39. What OI/disease occurs in the GI of AIDS pts
Actinomyces isreallii
Toxoid vaccine
Genetic drift - epidemic
Cryptosporidium - mycobacterium avium - intracellulare - CMV colitis - non Hodgkin lymphoma from EBV - Isospora belli
40. What causes typhoid fever - tricky Ts
JC virus causing PML
Animal - except typhi - only in humans
Salmonella typhi
Paragonimus westermani
41. What bacteria are considered enterococci - where are they found - and What do they cause
Enterococci (E. faecalis - E. faecium) nl colonic flora - pen G resistant - cause UTI and subacute endocarditis
Tapeworm larvae (intestinal infection) in pork or eggs (neurocystircercosis) in food/water contaminated with human feces
Prior HAV infection - protects against reinfection
Both are lactose fermenters - both invade intestinal mucosa and can cause blood diarrhea
42. Many protein subunits called capsomeres
spontaneous generation example
Cryptococcal meningitis - cryptococcosis - soap bibble lesions in brain
capsid is composed of...
protozoa (3)
43. When is H flu vaccine give
Doxycycline
Owl's eye inculsions
genus
Between 2 and 18 months
44. Which Abx are ineffective against obligate anaerobes and why - where are anaerobes nl found
ribosomes - function
Proteus - klebsiella - H. pylori - ureaplasma - particular kinds have urease
B cells - fever hepatosplenomegaly - pharyngitis - lymphadenopathy
Aminoglycosides - require O2 to enter bacterial cell - nl found in GI tract
45. Hyperalimentation is a risk factor For what nosocomial infection
capsid - definition
malaria
ADP- R AB toxin: inc cAMP by inhibiting Galpha1 - causes whooping cough - inhibits chemokine receptor - causing lymphocytosis
Candida albicans
46. What does group B strep produce and What does it cause
CAMP factor enlarges area of hemolysis formed by S. aureus
gram- negative cell wall
Group B strep
Histoplasmosis - mississippi and ohio river valley
47. Retinitis in HIV pos pts with cotton wool spots on fundoscopic exam
Inc - inc lymphos - inc - dec
CMV
Legionella
Strongyloides - ancylostoma - necator
48. What kind does exotoxin from C. botulinum do
Mold with septate hyphae that branch at acute angles
3 groups in archaea
Blocks the release of ACH - causes anticholinergic symptoms - CNS paralysis - especially cranial nerves
California encephalitis - sandfly/Rift Valley fevers - crimean - congo hemorrhagic fever Not - hantavirus causing hemorrhagic fever pneumonia
49. Hypothesis that living organisms arise from preexisting life (what we know is true)
Saucer shaped yeast forms
fungi kingdom
biogenesis
SNAP - sulfa for nocardia and actinomyces get pen
50. Allows nutrients in - waste out
No they are T cells reacting to EBV infected cells
osmotic pressure
cell membrane - function
Flagellum - pilus - capsule - peptidoglycan - cytoplasmic membrane