Microbiology CSMLS Review Questions with complete solutions.

Microbiology CSMLS Review Questions with complete solutions. The pulmonary form of anthrax is known as - Valley fever - Walking pneumonia - Farmers' lung - Woolsorters disease - correct answers.Woolsorters disease Streptococci are unable to synthesize the enzyme - Catalase - Kinase - Hyaluronidase - Lipase - correct answers.Catalase (Organisms that synthesize the enzyme catalase are able to protect themselves from the killing effects of H2O2 by converting it to H2O and O2. Streptococci are unable to do this) Which of the following is NOT appropriate when describing Streptococcus pneumoniae - Bile-resistant - Alpha hemolytic - Lancet-shaped, Gram positive diplococcus - Virulent strains are encapsulated - correct answers.Bile-resistant Streptococcus pyogenes can be presumptively ID'd using a(an) - PYR disk - ONPG disk - SPS disk - Optochin disk - correct answers.PYR disk (The ID of Group A strep can be achieved through the PYR disk test) A gram positive coccus that is catalase positive, nonmotile, lysostaphin resistant, and modified oxidase positive is best identified as - Micrococcus - Lactococcus - Streptococcus - Staphylococcus - correct answers.Micrococcus (Staphylococci and Micrococci are both Catalase positive. Micrococci are oxidase positive, whereas staphylococci are negative) In the CAMP test, a single streak of streptococcus is placed perpendicular to a streak of Staph. aureus. After incubation, a zone of increased lysis in the shape of an arrow is noted. This indicates? - S. agalactiae - S. bovis - S. equinus - S. pyogenes - correct answers.S. agalactiae (They can be presumptively ID'd by the demonstration of a CAMP reaction) Staphylococcus saprophyticus, a recognized pathogen, is a cause of - Furuncles - Impetigo - Otitis media - UTI - correct answers.UTI (The recovery rate of coagulase-negative Staph saprophyticus from the urinary tract infections in young females is second only to that of E.coli) Exfoliatin produced by Staphylococcus aureus is responsible for causing - Enterocolitis - Toxic shock syndrome - Scalded skin syndrome - Staphylococcal pneumonia - correct answers.Scalded skin syndrome (Scalded skin syndrome is a form of dermatitis produced by Staph. aureus) The etiologic agent most commonly associated with septicemia and meningitis of newborns is - S. agalactiae - S. bovis group - S. pneumoniae