5802. Operation theatres are sterilized by_____________?
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A. ETO gas

B. Carbolic acid spraying

C. Washing with soap and water

D. Formaldehyde fumigation
5803. Organ of locomotion in bacteria is________________?
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A. Fimbria

B. Cell wall

C. Flagella

D. Capsule

5804. Which of the following are correctly matched ?
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A. Antigenic stimulus given by vaccine (polio) is artificial active immunity

B. All of the above

C. Injection of antibodies (Hepatitis) is artificially acquired passive immunity

D. Transfer of antibody from mother to child is through colostrum and acquired passive immunity naturally

5805. All of the following organisms are known to survive intracellularly except_____________?
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A. Legionella pneumophila

B. Salmonella typhi

C. Neisseria meningitides

D. Streptococcus pyogenes
5807. Bacteria acquire characteristics by all of the following except___________________?
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A. Through bacteriophages

B. through conjugation

C. Incorporating part of host DNA

D. Though plasmids

5808. Bacterial species which is protective or beneficial to the host is_______________?
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A. Treponema denticola

B. Spirochetes

C. Streptococcus sanguis

D. Porphyromonas gingivalis

5809. All are true about bordetella pertussis except______________?
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A. It may occur in children and young adult after vaccination

B. Bacteria culture from nasopharyngeal swab is the definitive diagnosis

C. Most common cause is B. Petrussis

D. Presence of antibodies in serum in diagnostic of the disease
5811. Chlamydia causes all of the following except________________?
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A. Parotitis

B. Pneumonia

C. Trachoma

D. Non-gonococcal urethritis

5812. A protoplast is best characterized as a bacterial cell______________?
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A. Free of a cell wall and a capsule

B. Uniquely sensitive to penicillin

C. with a cell wall but free of a capsule

D. containing a cell wall and a capsule

5814. Grape bunch shaped colonies are seen in______________?
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A. E.coli

B. Gonococci

C. Staphylococcus

D. Streptococcus

5815. Mycobacterium tuberculosis is best demonstrated by_________________?
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A. Ziehl-Neelsen stain

B. H & E stain

C. Grams stain

D. PAS stain

5816. Bacteria reproduce mainly by______________?
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A. Sporing

B. Budding

C. Binary fission

D. Bacterial components produced by host cells

5818. Cleavage of IgG molecule by Papin gives rise to:One Fc fragment and two Fab fragments_______________?
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A. Two Fc fragment and one Fab fragment

B. One Fc fragment and two Fab fragments

C. Two Fc fragments and two Fab fragments

D. One Fc fragment and four Fab fragments

5819. Inactivated microorganisms are used in the manufacture of which of the following________________?
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A. Sabins oral vaccine

B. All of the above

C. Tetanus toxoid

D. Salk vaccine
5820. One of the following statement about statements about sterilization is not true_______________?
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A. Flash pasteurization of milk ? 72 C for 15 seconds, followed quickly by rapid cooling to 13C for lower

B. Liquid paraffin ? Dry heat

C. Glass syringes ? Boiling at 169C for 60 min

D. Vaccines ? Ethylene oxide
5822. Secretory piece of IgA is synthesized in______________?
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A. Lymph nodes

B. Mucosal epithelium

C. B-cells

D. T-cells

5823. Example of immune complex hyper-sensitivity reaction is______________?
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A. Transfusion reaction

B. Serum sickness

C. Atopic allergy

D. Contact dermatitis

5824. Bacterial spores are destroyed by_______________?
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A. Disinfection by hypochlorite solution

B. Boiling at 100C

C. Autoclave

D. Pasteurisation

5825. Streptococcus is classified based on__________________?
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A. Bile Solubility

B. Cultural characteristics

C. M Protein

D. Cell wall carbohydrate
5826. Erysipelas is caused by________________?
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A. Pneumococci

B. Group A steptococci

C. Group B staphylococci

D. Gonococci

5827. The most frequently encountered clostridial species in gas gangrene is______________?
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A. Clostridium tetani

B. Clostridium botulinum

C. Clostridium difficile

D. Clostridium welchii
5828. About Psedomonas. All are true except________________?
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A. Strick aerobes

B. Most common organism is burn patient

C. Can grow in disinfectants in hospital

D. Infection is mostly due to endogenous source
5829. The optimal time and temperature required for sterilization in an autoclave is___________________?
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A. 121C 15 mts. x 15 lbs pr.

B. 121F x 15 sec. x 15 lbs pr.

C. 140C x 2 hrs. x 10 lbs pr.

D. 121F x 15 mts. x 15 lbs pr.

5830. All of the following are true of streptococcus except_____________?
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A. Most common is animals

B. Shows adherence to dental enamel

C. Its group of lactic acid production bacteria

D. Most common in humans

5831. The best sterilization method for a hand-piece is________________?
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A. All of the above

B. Ethylene oxide gas

C. dry heat

D. chemical vapour

5832. Vibrio cholera was discovered by_________________?
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A. Medintoff

B. Koch

C. Virchow

D. John snow

5833. Thumb print appearance in culture film smear is seen______________?
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A. Brucella species

B. Clostridium weichii

C. Bordetelia pertussis

D. Bacillus anthracis

5834. True about VDRL test________________?
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A. Best followed for drug therapy

B. Slide flocculation test

C. Non Specific

D. All of the above
5836. Cell wall deficient bacteria are_______________?
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A. Staphylococci

B. Mycoplasma

C. Escherichia Coli

D. Spirochetes

5837. Tuberculin test screens for_____________?
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A. Hemoral immunity

B. Cell mediated immunity

C. Complement function

D. Phagocyte dysfunction

5840. Lancefields classification of B hemolytic streptococcus is based on______________?
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A. Type of lipid in cell membrane

B. M Protein

C. Polysaccharide C antigen

D. Physiological properties

5842. Test for differentiating virulent form non-virulent tubercular bacilli_____________?
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A. Niacin test

B. Catalase peroxidase test

C. Aryl sulphatase test

D. Neutral red test
5844. Lepromin test is useful for________________?
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A. Epidemiology

B. Prognosis

C. Treatment plan

D. Diagnosis

5846. A darkfield microscope would be useful in examining blood for_______________?
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A. Actinomyces

B. Treponema

C. Mycobacterium

D. Streptococcus

5847. Malignant pustule is referred to_________________?
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A. Facio-cervical actinomycosis

B. Cutaneous anthrax

C. None of the above

D. Infected squamous cell carcinoma

5848. Gram -ve bacteria stain during gram staining____________?
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A. Green

B. Red color

C. Colorless

D. Blue color

5849. The causative organism for cat-scratch disease is______________?
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A. Hemophilia ducreya

B. Chlamydia trachomatis

C. Donovania granulomatis

D. Bartonella henselae
5850. Rapid diagnosis of Tuberculosis is possible with_______________?
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A. Ziel Nelson

B. Kin Young stain

C. Giemsa stain

D. Auramine-Rhodamine stain