1. Fungus affecting reticular endothelial systemRhizopusCryptococcus neoformansMucormycosisHistioplasma capsulatumQuestion 1 of 20 2. Process of tissue culture is known as?Vegetative propagationMicro propagationChemical propagationMacro propagationQuestion 2 of 20 3. Benzalkalonium chloride belongs to which category of disinfectants:Essential oilsPhenolic compoundsBiguanidesQuaternary ammonium compoundsQuestion 3 of 20 4. Most common Helminthic disease associated with myocarditis isStrongyloidesTrichinellaTrypanosomaSchistosomaQuestion 4 of 20 5. Nagglers reaction detects-CoagulaseLecithinaseNone of the aboveHyaluronidaseQuestion 5 of 20 6. A young male patient presented to OPD with urethral discharge. On urine examination pus cells were found but not organisms. Which method would be the best for culture -Cooked meat mediumPPLO brothMcCoy cell lineThayer Martin mediumQuestion 6 of 20 7. Which of the following statements about C. diphtheria is false:Toxin may affect the heart and nervesToxin acts by inhibiting protein synthesisToxin production is mediated by native chromosomeOrganism may be identified by tests for toxigenicityQuestion 7 of 20 8. The cell wall deficient bacteriaMycoplasmaEhrtichiaeChlamydiaeRickettsiaeQuestion 8 of 20 9. A child presents with recurrent episodes of sinopulmonary infection by bacteria with polysaccharide rich capsules. Which of the following subclass deficiency of immunoglobulins s likely to cause such infections:IgAIgG2IgG1IgA + IgG1Question 9 of 20 10. Which type of pathogens provide the ultimate test for efficacy of sterilization?Spore-formingBacteriaVirusFungiQuestion 10 of 20 11. Which of the following inflammatory responses is associated with an infection caused by pyogenic pathogens?Acute suppurativeCatarrhalGranulomatousPseudomembranousQuestion 11 of 20 12. IL-1 and TNF - ? during Inflammation are secreted byPlateletsActivated macrophagesPlasma cellsLymphocytesQuestion 12 of 20 13. Type I hypersensitivity is mediated by which of the following immunoglobulinsIgA.IgG.IgE.IgM.Question 13 of 20 14. The exact part of the antigen that reacts with the immune system is called asParatopeIdiotopeEpitopeCloneQuestion 14 of 20 15. Commonest mycobacterial infection in tropical countriesM. LepraeKansasiM. Avium intracellulareM. TuberculosisQuestion 15 of 20 16. All of the following statements concerning complement are true, except:It consists of at least 11 different proteinsThe proteins are synthesized mainly by the kidneyThese proteins participate in lysis of foreign cells, inflammation, and phagocytosisIt is a collective term for a group of serum proteins that is the primary mediator of antigen-antibody reactionsQuestion 16 of 20 17. Endotoxins have all but one of the properties given below:Produced by gram negative bacteriaCannot be toxoidedNot secreted outside the cellProduced by gram positive bacteriaQuestion 17 of 20 18. Which of the following is not a feature of anaphylaxis?Delayed reactionPassive transfer by serumImmediate reactionNone of the aboveQuestion 18 of 20 19. All of the following statements concerning bacterial plaque are true, except:It is the key etiologic agent in the initiation of gingivitis and periodontal diseaseIt forms on a cleaned tooth within minutesIt is composed of solids (80%; 95% of which are bacteria) and water (20%)It is an accumulation of a mixed bacterial community in a dextran matrixQuestion 19 of 20 20. All are true about viruses except:The nucleic acid is either RNA or DNAEnveloped virus are more susceptible to environmental conditionsDo not show latency between inoculation and diseaseAre obligate intracellular parasitesQuestion 20 of 20 Loading...