Microbiology

Microbiology Study Guide

36. Pasteurization achieves sterilization. a. True b. False 37. Which of the disease-causing organisms is characterized by the catarrhal, paroxysmal, and convalescent stages? a. Streptococcus pyogenes b. Mycobacterium tuberculosis c. Bordetella pertussis d. Corynebacterium diphtheria 38. All of the following are heavy metals except: a. Copper sulfate b. Merthiolate c. Chlorine d. Silver nitrate 39. What is another name for the clear area against a confluent “lawn” of bacteria? a. Cell lysis b. Pock 40. If a patient is experiencing chest pains, fluid in the alveoli, difficulty breathing, fever, and a positive tuberculin skin test, the patient most likely has ______________. (All gram-positive cocci are isolated from the sputum in this example). a. Pneumococcal pneumonia b. Influenza c. Mycoplasmal pneumonia d. Tuberculosis 41. What is the ID50? a. A dose that will kill 50% of the test population b. A dose that will cause an infection in 50% of the test population c. A dose that will cause an infection in 100% of the test population d. None of the above Phage c. Plaque d.

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