1. Phenol Coefficient test for testing the efficacy of disinfectants in the presence of organic matter isKelsey Sykes testChick- Martin testRideal Walker testIn-use testQuestion 1 of 20 2. Bacterial vaccines are composed of:Inactivated protein exotoxins (toxoids)Live attenuated bacteriaAll of the aboveCapsular polysaccharidesQuestion 2 of 20 3. Non supparative lesion caused by group-A StreptococciNecrotizing fasciitisImpetigoCellulitisPoststreptococcaL GlomerulonephritisQuestion 3 of 20 4. Correct order of phases in bacterial growth curve:Log, lag, stationery, declineStationery, log, lag, declineDecline, log, lag, stationeryLag, log, stationery, declineQuestion 4 of 20 5. Granules in the Corynebacterium diphtheria are called by following names, exceptRefractile granulesMetachromatic granulesBabes Ernst granulesVotutin granulesQuestion 5 of 20 6. Which of the following statement is true about bacteriophageIt helps in transformationIt is a bacteriumIt transfers only chromosomal geneIt imparts toxigenicity to bacteriaQuestion 6 of 20 7. Which of the following statements about campylobacter jejuni is falseHumans are important reservoirs of infectionAssociated with Guillain Barre SyndromePoultry is a common source of infectionCommonest agent responsible for campylobacterosisQuestion 7 of 20 8. Synthesis of antibodies in plasma cells occurs In:MitochondriaGolgi bodyEndoplasmic reticulumNucleusQuestion 8 of 20 9. A boy with skin ulcer on leg, culture reveals beta hemolysis. Cultures from school children with sore throat some days back also revealed beta hemolysis. What is the similarity between bothStrains causing both are sameM protein is sameC carbohydrate antigen is sameMec A gene is related to itQuestion 9 of 20 10. Delayed tuberculin test response is due toHistiocytesT lymphocytesMonocytesB LymphocytesQuestion 10 of 20 11. Which of the following is not a feature of anaphylaxis?Immediate reactionPassive transfer by serumNone of the aboveDelayed reactionQuestion 11 of 20 12. Which of the following statements about Pneumococcus is false:Capsule aids in virulenceCommonest cause of Otitis mediaRespiratory tract of carriers is most important source of infectionCauses mild forms of meningitisQuestion 12 of 20 13. All are true relation to scrub typhus except?Caused by 0. TsutsugamushiTetracycline is the drug of choiceMites act as reservoirTransmitted when adult mites feed on hostQuestion 13 of 20 14. Which of the following statement is not true regarding Chlamydia Trachomatis:Inside the cell it evades phagolysomeElementary body is metabolically activeIt is biphasicReticulate body divides by binary fissionQuestion 14 of 20 15. Colonies with Bisected Pearl appearance is seen inMycoplasmaC.DiptheriaeBrucellaBordetellaQuestion 15 of 20 16. Which stage of plasmodium vivax is infective for mosquito?TrophozoiteOokineteSporozoiteGametocyteQuestion 16 of 20 17. True about Toxaplasma gondi is, it is carried by -RatsCatsCowDogsQuestion 17 of 20 18. The phase of growth in which bacteria increases in size with increase in metabolic activity but no increase in number is seen inPratella phaseLog phaseLag phaseDecline phaseQuestion 18 of 20 19. prion - true issensitive to most chemical sterilizationcontains DNA/RNAevokes strong immunologic reactionhave long incubation periodQuestion 19 of 20 20. Ig predominant in saliva is:IgAIgEIgDIgMQuestion 20 of 20 Loading...