1. Anaerobic bacteria can be cultured in L-J medium Robertson cooked meat medium Loefflers medium Sabourauds agar 2. Which organism causes prosthetic valve endocarditis within 60 days of surgery Fungus Streptococcus viridians Staphylococcus epidermis Staphylococcus aureus 3. All are true relation to scrub typhus except? Tetracycline is the drug of choice Transmitted when adult mites feed on host Caused by 0. Tsutsugamushi Mites act as reservoir 4. Streptococcus mutans can be distinguished from other streptococci by Fermentation of mannitol and sorbitol Hemolysis on blood agar Production of extracellular polysaccharides Optochin sensitivity 5. Characteristic feature of retiovirus is: Ribonuclease Reverse transcriptase DNA polymerase Restriction endonuclease 6. Mycobacterium tuberculosis is differentiated from other atypical mycobacteria by PAS staining None Niacin test AFB staining 7. In all of the following bacterial diarrhoeas toxins are implicated as a major pathogenic mechanism except Shigella Vibrio cholera Staphylococcus aureus Vibrio parahemolyticus 8. Silver Impregnation method of staining is useful to demonstrate Both of the above None of the above Spirochetes Bacterial flagella 9. Culture medium for Corynebacterium diphtheria Saborauds agar Loefflers serum slope Lowenstein Jensen Medium Mcconkey 10. Most antibodies are produced in the: Brain and the meninges Heart and the liver Spleen and the Lymph nodes Thymus and the appendix 11. Type I hypersensitivity is caused by: IgA IgG IgD IgE 12. Physical sterilization was discovered by: John Hunter Alexander Flemings Robert Koch Joseph Lister 13. Soluble components of complement system account for about 7-8 mg/ml of total serum protein 5-7 mg/ml of total serum protein 3-4 mg/ml of total serum protein 1-2 mg/ml of total serum protein 14. Hot air oven is used for sterilization of all EXCEPT: Liquid paraffin Glassware Rubber tubes Sharp instrument 15. Benzalkalonium chloride belongs to which category of disinfectants: Quaternary ammonium compounds Biguanides Essential oils Phenolic compounds 16. Endotoxins have all but one of the properties given below: Not secreted outside the cell Produced by gram positive bacteria Produced by gram negative bacteria Cannot be toxoided 17. Type I hypersensitivity is mediated by which of the following immunoglobulins IgA. IgG. IgE. IgM. 18. What is the transport medium for cholera Calyblairmedium B&C Tellurfte Medium Venkatramari – Ramaknshrian Medium 19. Pseudomonas, true is all except It can cause endogenous infection It grows in antiseptic solution It is a strict aerobe Most common organism in burnt patient 20. Opacity around colonies of Clostridium perfringens is due to – Lecithinase Cytokinin Desmotase Theta toxin Loading … Question 1 of 20
