Microbiology and Parasitology Mock ExamANSWER KEY

1. Which of the following is not true of the causative agent of scabies?a. It causes a familial diseaseb. The classic rash includes burrows, vesicles, papules and pustules? (This is a secondary manifestation)c. It can be diagnosed by smearing black ink on skin and observing burrows.d. It is treated with permethrin

2. Which of the following does not belong to Class Arachnida?a. mites c. liceb. fleas d. scorpions

3. Which of the following protozoa contains cyst?a. Dientamoeba fragilis c. Giardia lambiab. Entamoeba histolytica d. Trichomonas vaginalis

4. All of the following can be used as drugs for Toxoplasma except:a. Pyrimethamine c. metronidazole e. AOTAb. Sulfadiazine d. clindamycin

5. All of the following can cause disease in immunocompromised/ AIDS patients except:a. Isospora belli c. MAC e. AOTAb. Pseudomonas aeruginosa d. Pneumocystis jiroveci

6. The following drug(s) is/are used to treat asymptomatic/ cyst passers of E. histolyticaa. Iodoquinol c. Diloxanide furoateb. Tinidazole d. A and C onlye. AOTA

7. The following Plasmodium species can cause relapsea. P. vivax (also P. ovale) c. P. malariaeb. P. falciparum d. AOTA

8. The following stages in malaria will occur in the livera. Gametogony c. Sporogonyb. Schizogony d. all of the above

9. The drug of choice used to halt the gametogony stage in malariaa. Doxycycline c. Primaquineb. Chloroquine d. Mefloquine

10. The gold standard for identification of Malarial parasitesa. Microscopic identification c. RDTb. Quantitative Buffy coat d. AOTA

11. Praziquantel is the drug of choice for all of the following except:a. Paragonimus westermanii c. Echinostoma ilocanum (DOC is Hexylrosorcinol)b. Fasciolopsis buski d. Opisthorchis viverrini

12. Lymnea philippinensis is the intermediate host of which of the following flukes?a. Fasciola hepatica c. Clonorchis sinensisb. Fasciolopsis buski d. Opisthorchis viverrini

13. All of the following Schistosoma species will causes periportal fibrosis excepta. S. japonicum c. S. mansonib. S. hematobium d. AOTA

14. This cestode exhibits a melon/ vase shaped mature proglottida. T. saginata c. D. latumb. D. caninum d. D. nana

15. Which of the following species does not contain a sheathed microfilariae?a. W. bancrofti c. Loa loab. B. malayi d. Oncocercus volvulus

Mnemonic: WBL (Wuchereria, Brugia, Loa). All the rest are unsheathed

16. Which of the following exhibits nocturnal periodicity?a. W. bancrofti c. Loa loab. B. malayi d. Oncocercus volvulus

17. All of the following roundworms are treated with Albendazole excepta. A. lumbricoides c. Trichiuris trichiurab. S. stercoralis d. C. philippinensis

Mnemonic: Si CASH ay umaALBEN. (Capillaria, Ascaris, Strongyloides and Hookworm)

18. Which of the following will not cause anemia?A. Hookworm c. D. latumb. E. vermicularis d. A and C only

19. The following are found in the small intestine except:a. A. lumbricoides c. Trichiuris trichiurab. S. stercoralis d. C. philippinensis

Mnemonic: CASH- Small intestine, TE- large intestine

20. The type of injury that Plasmodium causes to its hosta. Invasion and destruction of tissuesb. Interference with the vital processesc. Deprivation of nutrientsd. AOTAe. NOTA

21. All of following exhibit male and female sexes in a single organism excepta. P. westermani c. D. latum e. NOTAb. E. ilocanum d. AOTA

Note: All flukes are hermaphroditic, Adult cestode are also hermaphroditic

22. The fungus that causes rhinocerebral infectiona. Mucormycosis c. Aspergillusb. C. albicans d. Blastomycosis

23. The only fungus tested positive for india ink testa. Coccidiodes c. Candidab. Cryptococcus d. Aspergillus

24. This type of fungus exhibits buds attached to a parent cell with narrow basea. Paracoccidiodes c. Candidab. Blastomyces d. Aspergillus

Note: Blastomyces- narrow

25. All of the following will cause systemic fungal infection excepta. Paracoccidiodes c. Histoplasmab. Blastomyces d. Aspergillus (opportunistic kasi siya!)

26. All of the following diseases caused by superficial mycoses excepta. Tinea c. Keratomycosisb. Piedra d. NOTA

26. The agar used for fungal isolationa. BAP c. SDAb. GMS d. AOTA

27. All of the following diseases are transmitted by vectors excepta. Malaria c. EEEb. hemorrhagic fever with renal syndrome d. AOTA

28. The drug of choice for CMV infectionsa. Gancicyclovir (Foscarnet din) c. Ribavirinb. Acyclovir d. Lamivudine

29. All of the following are attenuated vaccines excepta. Rabies c. Rotavirus

b. Varicella d. Yellow fever

Mnemonic: MMRRVYSab (Measles, Mumps, Rubella, Rotavirus, Varicella, Yellow fever and Sabin Polio). All the rest are inactivated

30. The only Hepa virus that can be transmitted perinatallya. A c. C e. Eb. B d. D

31. If the HBV-DNA is tested positive, what does this mean?a. the patient had a past or chronic infectionb. The virus is no longer replicatingc. it is used as a monitor to therapy responsed. it is used to document recovery

32. All of the following diseases are transmitted by the vector Culex excepta. St. Louis encephalitis c. OMSK hemorrhagic feverb. tick borne encephalitis d. Murray valley encephalitis

33. A patient with dengue fever had signs of circulatory failure. Under what grade is the patient classified?a. 1 c. 3b. 2 d. 4

34. The type of disease characterized as having the presence of mental deterioration, myoclonus and EEG periodic sharp EEG complex?a. CJD c. Kurub. GSS d. New variant CJD

35. The leading cause of death in AIDS patientsa. Kaposi’s sarcoma c. Oral hairy leukoplakiab. P. carinii infection d. Toxoplasmosis infection

36. Which of the following herpes virus is not a/an alphavirus?a. HSV 1 c. VZVb. EBV d. HSV-2

37. The triad of rubella virus include the following organs except:a. eyes c. earsb. heart d. brain

38. All of the following are enveloped viruses except:a. Herpesvirus c. Adenovirusb. orthomyxovirus d. Flavivirus

(im sorry wala ako mnemonics dito! )

39. The mutation driven change in influenza that causes a new subtypea. Drift c. Bothb. Shift d. none

40. The protein that can cause viral particle release in influenzaa. Hemaglutinins c. nucleoproteinb. Neuraminidase d. AOTA

41. The characteristic inclusion bodies in poliovirusa. Negri (Rabies po ito) c. Charcot Leydenb. Guarneri d. NOTA

42. All of the following are RNA viruses except:a. Orthomyxo c. Poxb. Reo d. Toga

43. The HPV that can cause condylomata acuminataa. 6 and 11 c. 5b. 7 d. 16 and 18

44. The virus that can cause foot and mouth diseasea. Apthovirus c. Coxsakie Bb. Coxsakie A d. Theilovirus

45. All DNA virus replicated in the nucleus excepta. Retrovirus c. Herpesvirus

b. Poxvirus d. Adenovirus

Note: si Pox talaga mejo weird. Aside from it replicates in the cytoplasm kahit na DNA virus xa, siya din ang complex ang virion.

46. This organism can be differenitiated by Naegler reactionA. C. tetani c. D. pertussisB. C. trachomatis d. C. perfringens

47. The neurotransmitter that is blocked by the microorganism that causes flaccid paralysis.a. GABA c. Serotoninb. Ach d. Dopamine

Note:Botulism- Flaccid- GABATetanus- Spastic- ACh

48. Which of the following is/are true of Mycoplasma?a. It is the smallest free living bacteriab. It can cause non-gonococcal urethritisc. It lack cell wall.d. Can be grown in simple cultures (complex cultures siya)e. AOTA

49. The metabolically active replicating, non-infections form of Chlamydia?a. reticulate bodies c. psammoma bodiesb. elementary bodies d. NOTA

50. The biovar of Chlamydia that causes Inclusion Conjuncivitisa. LGV c. mouse pneumonitisb. Trachoma d. AOTA

51. Under what class is Patient X classified if he has positive history of TB exposure but negative PPD test?a. 0 c. 2 e. 4b. 1 d. 3

52. Middlebrook is a ____ for M. tuberculosisa. solid culture c. microscopic technique b. liquid culture d. PPD test

53. All of the following are characteristics of tuberculous leprosy excepta. predominant CMI c. symmetric nerve involvementb. paucibacillary d. macular lesions

Note: basta malala si lepromatous. Damhin nyo na lang. hehehe

54. All of the following are anaerobic gram positive bacilli excepta. Lactobacillus c. Peptostreptococcusb. Eubacterium d. Bifidobacterium

55. Which of the following culture system is/are considered purely anaerobic?a. Brewer’s Gas pack c. Bothb. Candle Jar d. None