1. All of the following are potential pathogens of ororpharynx except:E.coliN. MeningitidesH. influenzaeStreptococcus pneumoniaQuestion 1 of 20 2. The chemotactic factor isC5aC3bC4aC2aQuestion 2 of 20 3. Alcohol requires which concentration listed below to kill bacteria given sufficient time?10%-20%70%-95%30%-40%50%-60%Question 3 of 20 4. Which of the following statement is true about bacteriophageIt imparts toxigenicity to bacteriaIt is a bacteriumIt helps in transformationIt transfers only chromosomal geneQuestion 4 of 20 5. Bacteria with tuft of flagella at one end are calledMonotrichateLophotrichatePeritrichateBipolarQuestion 5 of 20 6. A viremia is characterized by which of the following?Infected cells are transformed.The virus is most easily spread via gastrointestinal secretions.The virus is most susceptible to circulating antibodies.Infected cells are no longer releasing virus.Question 6 of 20 7. Hay fever and allergies to certain foods are examples of:Cell-mediated or delayed hypersensitivity reactionsAtopic allergiesImmune complex-mediated hypersensitivity reactionsAntibody-dependent cytotoxic hypersensitivity reactionsQuestion 7 of 20 8. All of the following are Heterophile Agglutination tests, exceptPaul-Bunnel TestCold Agglutination testRose- Waller testWeil-FelixQuestion 8 of 20 9. Synthesis of antibodies in plasma cells occurs In:Endoplasmic reticulumGolgi bodyMitochondriaNucleusQuestion 9 of 20 10. In poorly controlled Type I diabetes, most common infection is:RhinosporidiasisHistoplasmosisMucormycosisCryptococcusQuestion 10 of 20 11. Syphilis is caused bySpirochetesM. tuberculosisSalmonellaFungiQuestion 11 of 20 12. The antigen-binding site of antibody molecules is localized in theconstant regionFab fragmentFc receptorJ- chain.Question 12 of 20 13. Post streptococcal acute glomerulus nephritis is an example forType I hypersensitivityType II hypersensitivityType IV hypersensitivityType III hypersensitivityQuestion 13 of 20 14. Immunoglobin, which is produced first by the fetus in response to InfectionIgDIgAIgMIgGQuestion 14 of 20 15. Bull-neck' is seen in severe cases of which of the following?Tubercular lymphadenitisDiphtheriaMumpsGoitreQuestion 15 of 20 16. All are true about viruses except:The nucleic acid is either RNA or DNADo not show latency between inoculation and diseaseEnveloped virus are more susceptible to environmental conditionsAre obligate intracellular parasitesQuestion 16 of 20 17. Organ of locomotion in bacteria isCell wallFlagellaFimbriaCapsuleQuestion 17 of 20 18. Varicella Zoster remains latent inT cellsTrigeminal GanglionMacrophagesB cellsQuestion 18 of 20 19. Which of the following describes the function of adjuvants?Desensitize to a given antigenEnhance antibody responseEnhance secretion of IgAStimulate complement synthesisQuestion 19 of 20 20. Which type of pathogens provide the ultimate test for efficacy of sterilization?VirusSpore-formingBacteriaFungiQuestion 20 of 20 Loading...