medical MCQs – Page 291

Practise multiple-choice questions from medical for competitive examinations and subject revision. Review each marked answer and report any item that may be outdated or unclear.

5801. A veterinary doctor had pyrexia of unknown origin His blood culture in special laboratory media was positive for gram negative short bacilli which was oxidase positive. Which one of the following is the likely organism grown in culture ?
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A. Francisella spp

B. Pasturella spp

C. Bartonella spp

D. Brucella spp
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
5806. The most common site where organisms are present in a typhoid carrier is______________?
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A. Gall Bladder

B. Salivary gland

C. Liver

D. Spleen

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
5810. The type of immunoglobulin most commonly increased in multiple myeloma is_______________?
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A. IgA

B. IgM

C. IgD

D. IgG
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

5813. For uniform staining reaction, morphology and biochemical activity it is advisable to study bacterial cultures during the_____________?
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A. Logarithmic phase

B. Lag phase

C. Stationary phase

D. Death phase

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

5817. Mycobacterium tuberculosis is differentiated from other atypical mycobacteria by______________?
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A. None of the above

B. Niacin test

C. Pas staining

D. AFB staining

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