0% 0 Microbiology Quiz 1 1 / 50 Human immunoglobulins are divided based on_____________? Functional differences None of the above Structural differences Complemented fixation 2 / 50 The reaginic antibody is________________? IgD IgA IgG IgE 3 / 50 The facultative anaerobic bacteria are those who are_______________? Able to grow in the presence of carbon dioxide Able to grow in the presence of absence of oxygen Unable to grow in the presence of oxygen Unable to grow in the absence of oxygen 4 / 50 Which of the following viruses are most likely to cross placenta and cause foetal defect ? Mumps Papilloma Rubella Herpes Simplex 5 / 50 Leptospirosis, all are true except______________? Incubation period is 10 days It is sensitive to penicillin Onset of IgM in 2 days Faeces & urine of rodents is the cause 6 / 50 Which of the following methods is adopted for screening HIV infection ? Polymers chain reaction ELISA followed by western blot technique Virus isolation Western blot followed by ELISA 7 / 50 The mechanism of genetic transfer where a phage serves as a vehicle is_______________? Lysogeny Translation Transduction Conjugation 8 / 50 Which of the following provides best gurantee for sterlization in the heat sterilizer ? Using chemical indicator strip or pouch Using a bacterial spore test Determining the ability of a sterilizer to kill the hepatitis B virus Recording a temperature/ pressure readings from sterilizer guage 9 / 50 Cysticercosis celluosae is caused by_____________? T. Solium T. Saginata nana Echinococcus granulosus 10 / 50 Actinomycetes is______________? A yeast like form Gram positive bacteria Fungus Gram negative bacteria 11 / 50 Causative organism for gas gangrene_______________? Clostridium tetani Clostridium welchii Strep. Faecalis Coli 12 / 50 A child presents with infective skin lesions of the leg. Culture was done which showed gram positive cocci in chains and haemolytic colonies. Which of the following tests will best identify the organism ? Cataslase positive Bacitracin sensitivity Optochin sensitivity Bile solubility 13 / 50 Graft versus host reaction is caused by_________________? B-Lymphocytes T-lymphocytes Leukocytes Monocytes 14 / 50 Type I hypersensitivity is mediated by which of the following immunoglobulins ? IgA IgG IgE IgM 15 / 50 Incubation pariod of herpes zoster is________________? 1-2 years 3-6 months 7-14 days 1 months 16 / 50 The virus which causes Aplastic anemia in chronic hemolytic disease is_______________? Parvo virus Hepatitis Adeno EB virus 17 / 50 The earliest identifiable cells of T-Cell lineage during maturation are_______________? CD8+ Pre-T-Cells CD7+ Pro-T-Cells CD5+ Pre-T-Cells CD8+ Pro-T-Cells 18 / 50 Teichoic acid is present in cell walls of_________________? Protozoa Gram negative bacteria Yeast Gram positive bacteria 19 / 50 Who first introduced solid media_______________? Ogston Hensen Robert koch Louis pasteur 20 / 50 Black pigmented anaerobes include all of the following except______________? Tannerella Porphyromonas Buccae Prevotella 21 / 50 Chemotactic cytokine is_________________? IL-6 IL-1 TNF IL-8 22 / 50 Which of the following immunoglobulins has the highest mean serum concentration in humans_________________? IgD IgG IgA IgM 23 / 50 Enterically transmitted NANB hepatitis B_____________? Hepatitis C Hepatitis E Hepatitis F Hepatitis D 24 / 50 Mycobacterium tuberculosis is differentiated from other atypical mycobacteria by______________? AFB staining None of the above Pas staining Niacin test 25 / 50 IgG antibodies have a half-life of approximately_______________? 1 hour 1 day 1 week 1 Month 26 / 50 The difference between gram positive and negative bacteria lies in their_______________? cell membrane Mesosomes Nuclear material cell wall 27 / 50 The best skin disinfectant is________________? Savlon None of the above Alcohol Chlorhexdine 28 / 50 About Bacteroids True are all Except_______________? Susceptible to many antibiotics Bile resistant anerobes Present mainly in mixed infections Most common species is B fragilis 29 / 50 IgG has subclasses_______________? 1 2 3 4 30 / 50 Disinfection frees the surface from______________? Vegetative forms Spore forms None of the above Both of the above 31 / 50 Candida is most often implicated in causation___________________? Tenea capitis Desert rheumatism Conjunctivitis Thrush 32 / 50 A cerebrospinal fluid of a 2 years old child has been sent to the laboratory to detect the presence of capsulated yeast. The staining technique most commonly employed for the purpose is______________? Ziehl-Neelsen stain Pyte-ferraco stain India ink preparation Methanamine silver stain 33 / 50 For the treatment of case of class III dog bite, all of the following are correct except_____________? Immediately stitch wound under antibiotic coverage Give inmunoglobulins for passive immunity Give ARV Immediately wash wound with soap and water 34 / 50 Investigation of choice for invasive amoebiasis is________________? Counter immune electroporesis ELISA Indirect hemagglutination Microscopy 35 / 50 The difference between sterilization and disinfection is that_______________? Sterilization involves chemicals and disinfection involves physical methods Sterilization kills all spores but disinfection does not Disinfection kills all spores but sterilization does not Sterilization is easier to achieve 36 / 50 A type of immediately occuring reaction in which antigens combine with antibodies already attached to the surface of mast cells and basophils is called_____________? Type I hypersensitivity Type IV hypersensitivity Type II hypersensitivity Type III hypersensitivity 37 / 50 parasitic inflammation would show predominantly____________________? Lymphocytes Eosinophils Basophils Neutrophilis 38 / 50 Each of the following can cause food poisoning except________________? Cl. welchii Staphylococcus Cl. difficile Cl. botulinum 39 / 50 All of the following lab tests can be used to distinguish streptococcus mutans from other oral streptococci, except______________? Colony morphology on saliva agar Production of intracellular and extracellular adherent polysacharide Fermentation of mannitol and sorbital Gram staining 40 / 50 Amoebic liver abscess can be diagnosed by demonstratig________________? Cysts in the intestine Trophozoites in the pus Trophozoites in the feces Cysts in the sterile pus 41 / 50 Complement binding immunoglobin via the classical pathway is_______________? IgG & IgD IgG & IgA IgD & IgE IgG & igM 42 / 50 Hydatid cyst is__________________? Viral Fungal Parasitic in nature Congenital 43 / 50 Lesions caused by Entameoba histolytica predominantly involve________________? Caecum and large intestine Stomach Duodenum Jejunum and Ileum 44 / 50 Salivary peroxidise system is known to be effective agianst________________? Streptococcus mutans Veilonella parvula Actinomyces viscosus Lactobacillus acidophilus 45 / 50 Which of the following enzyme is required to induce the formation of a plasma clot pathogenic staphylococci_____________? Coagulase Lysozyme Fibrinolysin S protein 46 / 50 Portal of entry of poliovirus in mainly_______________? Nasal mucosa Gastrointestinal tract Lung Skin 47 / 50 Common name for Trichuris trichura________________? Whip worm Seat woman Tape worm Round worm 48 / 50 The interaction of antigens with antibodies on the surface of a mast cel leads to degranulation and anaphylaxis. The mast cell granules produce anaphylaxis because they contain________________? Lymphotoxins Lysosomes Proteolytic enzymes Vasoactive mediators 49 / 50 Gram -ve bacteria stain during gram staining____________? Red color Green Colorless Blue color 50 / 50 Bacteria acquire characteristics by all the following except_______________? Through bacteriophages Through conjugation Incorporating part of host DNA Through plasmids Provide Your Information Your score is The average score is 0% LinkedIn Facebook Twitter 0% Restart quiz Send feedback Share on facebook Facebook Share on twitter Twitter Share on whatsapp WhatsApp Microbiology Quiz 2Next
