Competitive Exams: Medical Science MCQs (Practice-Test 21 of 135)

  1. Which of the following structures contains genes for enzymes and antibiotic resistance?

    1. Plasmid

    2. Pilus

    3. Capsule

    4. Plasma Membrane

    Answer: a

  2. Which of the following is the most important structure related to microbial attachment to cells?

    1. Flagellum

    2. Plasmid

    3. Peptidoglycan

    4. Glycocalix

    Answer: d

  3. Which of the following is not a gram-negative bug?

    1. Clostridium perfringens

    2. Vibrio cholerae

    3. Escherichia coli

    4. Bordetella pertussis

    Answer: a

  4. Which of the following is not true related to endotoxins?

    1. Endotoxins are secreted from cells.

    2. Can be linked to Meningococcemia

    3. Produced by gram negative microorganisms

    4. Can cause fever

    Answer: a

  5. Which of the following microorganisms stain well?

    1. Escherichia coli

    2. Legionella pneumophila

    3. Treponema

    4. Chlamydia

    Answer: a

  6. Which of the following microorganisms are not matched correctly with the appropriate isolation media?

    1. Fungi-Sabourand's agar

    2. Neisseria gonorrhoeae-Pink colonies media

    3. Haemophilus influenzae-Chocolate agar

    4. Mycobacterium tuberculosis-Lowenstein-Jensen agar

    Answer: b

  7. Which of the following diseases and bacteria are matched up incorrectly?

    1. Cellulitis-Pasteurella multocida

    2. Tularemia-Francisella tularensis

    3. Gastritis-Heliobacter pylori

    4. Lyme disease-Yersinia pestis

    Answer: d

  8. Which of the following diseases and bacteria are matched up incorrectly?

    1. Treponema pallidum-Syphilis

    2. Tinea nigra-Cladosporium werneckii

    3. Borrelia burgdorferi-Lyme disease

    4. Yersinia enterocolitica-Diptheria

    Answer: d

  9. Which of the following is not true concerning Staphylococcus aureus?

    1. S. Aureus is related to inflammation.

    2. S. Aureus can cause pneumonia

    3. S. Aureus can lead to acute bacterial endocarditis

    4. S. Aureus does not make coagulase

    Answer: d

  10. Which of the following signs and symptoms is not linked to Haemophilus influenzae?

    1. Otitis media

    2. Pneumonia

    3. Malaria

    4. Epiglottis

    Answer: c