Question: Causative agents of Vincent’s angina_____________?

• 1. Borrelia vincenti and fusobacterium fusiformis
• 2. Borrelia recurrents and bateroides
• 3. Borrelia burgoloferi and lactobacillus
• 4. Leptospira and Treponema pallidum

Question: A protoplast is best characterized as a bacterial cell______________?

• 1. with a cell wall but free of a capsule
• 2. containing a cell wall and a capsule
• 3. Free of a cell wall and a capsule
• 4. Uniquely sensitive to penicillin

Question: Which regards to temperature requirement, most pathogenic bacteria are_____________?

• 1. Psychrophiles
• 2. Mesophiles
• 3. Cryophiles
• 4. Thermophiles

Question: One of the following is an agglutination test in the diagnosis of typhoid___________?

• 1. Widal test
• 2. Eleks test
• 3. Mantoux test
• 4. Wasserman test

Question: Staphylococci typically occur in_________________?

• 1. Pairs
• 2. Chains
• 3. Tetrads
• 4. Irregular clusters

Question: In a patient with typhoid, diagnosis after 15 days of onset of fever is best done by_____________?

• 1. Blood culture
• 2. Widal test
• 3. Stool culture
• 4. Urine culture

Question: The virulence factors of Neisseria gonorrhea include all of the following except____________?

• 1. Outer membrane proteins
• 2. IgA Protease
• 3. M-Proteins
• 4. Pili

Question: The genetic ability of a bacterium to grow in the presence of several antibiotics is passed in vivo from one bacterium to another by_____________?

• 1. Conjugation
• 2. Rarefaction
• 3. Transduction
• 4. Transformation

Question: One of the following is a treponemal test for diagnosis of syphilis_____________?

• 1. FTAB
• 2. Widal test
• 3. Wasserman test
• 4. Kahn test

Question: For uniform staining reaction, morphology and biochemical activity it is advisable to study bacterial cultures during the_____________?

• 1. Lag phase
• 2. Death phase
• 3. Stationary phase
• 4. Logarithmic phase