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1) The temperature required for cultivating mycobacterium________________? a. 2 degree b. 0 degree c. 27 degrees d. 37 degrees
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2) Silver impregnation method of staining is useful to demonstrate_____________? a. Bacterial flagella b. Spirochetes c. Both of the above d. None of the above
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3) Gram -ve bacteria stain during gram staining____________? a. Blue color b. Red color c. Green d. Colorless
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4) The most common site where organisms are present in a typhoid carrier is______________? a. Spleen b. Gall Bladder c. Liver d. Salivary gland
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5) Diphtheria is pathogenic only when infected with______________? a. Beta phage b. Alfa phage c. Lambda K12 d. Delta Phage
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6) Which of the following is an acid-fast bacillus_____________? a. Mycobacterium bacilli b. Treponema pallidum c. Neisseria gonorrhea d. All of the above
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7) Group A B-hemolytic streptococcal infection of the pharynx may be followed in some by_____________? a. Diphtheria b. Typhoid fever c. Rheumatic fever d. Syphilis
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8) Causative agents of Vincent’s angina_____________? a. Borrelia vincenti and fusobacterium fusiformis b. Borrelia recurrents and bateroides c. Borrelia burgoloferi and lactobacillus d. Leptospira and Treponema pallidum
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9) A protoplast is best characterized as a bacterial cell______________? a. with a cell wall but free of a capsule b. containing a cell wall and a capsule c. Free of a cell wall and a capsule d. Uniquely sensitive to penicillin
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10) Which regards to temperature requirement, most pathogenic bacteria are_____________? a. Psychrophiles b. Mesophiles c. Cryophiles d. Thermophiles
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11) One of the following is an agglutination test in the diagnosis of typhoid___________? a. Widal test b. Eleks test c. Mantoux test d. Wasserman test
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12) Staphylococci typically occur in_________________? a. Pairs b. Chains c. Tetrads d. Irregular clusters
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13) In a patient with typhoid, diagnosis after 15 days of onset of fever is best done by_____________? a. Blood culture b. Widal test c. Stool culture d. Urine culture
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14) The virulence factors of Neisseria gonorrhea include all of the following except____________? a. Outer membrane proteins b. IgA Protease c. M-Proteins d. Pili
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15) The genetic ability of a bacterium to grow in the presence of several antibiotics is passed in vivo from one bacterium to another by_____________? a. Conjugation b. Rarefaction c. Transduction d. Transformation
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16) One of the following is a treponemal test for diagnosis of syphilis_____________? a. FTAB b. Widal test c. Wasserman test d. Kahn test
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17) For uniform staining reaction, morphology and biochemical activity it is advisable to study bacterial cultures during the_____________? a. Lag phase b. Death phase c. Stationary phase d. Logarithmic phase
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18) Organ of locomotion in bacteria is________________? a. Fimbria b. Flagella c. Capsule d. Cell wall
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19) Endotoxin have all but one of the properties given below_______________? a. Produced by gram negative bacteria b. Produced by gram positive bacteria c. Not secreted outside the cell d. Cannot be toxoided
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20) Toxic shock syndrome is due to the following virulence factor_____________? a. M protein b. Pyrogenic exotoxin c. Streptolysin 0 d. Carbohydrate cell wall
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21) The commonest method of detection of diptheria carriers is_______________? a. Schick test b. Dick test c. Casoni’s test d. Charles’ test
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22) The difference between gram positive and negative bacteria lies in their_______________? a. cell wall b. cell membrane c. Nuclear material d. Mesosomes
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23) The specific test for Treponema pallidum is___________? a. VDRL b. Kahn’s test c. TPHA d. Widal test
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24) All of the following are true of streptococcus except_____________? a. It’s group of lactic acid production bacteria b. Shows adherence to dental enamel c. Most common in humans d. Most common is animals
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25) Bacteria reproduce mainly by______________? a. Budding b. Binary fission c. Sporing d. Bacterial components produced by host cells
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26) An oxidase-positive, gram-negative rod which produces a bluish-green pigment has been grown in culture from a swab obtained from an infected burn wound. This organism is susceptible to gentamicin, ticarcillin and tobramicin, but resistant to all the other antibiotics which of the following organisms is it likely to be ? a. Escherichia coli b. Klebsiella pnemoniae c. Proteus miribilis d. Pseudomonas aeruginosa
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27) The causative organism of syphilis is___________? a. Borrelia burgolorferi b. Chalamydia trachomatis c. Leptospira interrogans d. Treponema pallidum
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