Microbiology Exam 3 review Questions

Microbiology Exam 3 - Microbiology Exam 3 review 1 A colony that appears to be creamy yellow on BAP and is coagulase poitive is most likely a

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Microbiology Exam 3 review 1. A colony that appears to be creamy yellow on BAP and is coagulase poitive is most likely a. Enterococcus faecalis b. Streptococcus pyogenes c. Staphylococcus aureus d.Staphylococcus epidermidis 2. A known culture of micrococcus is Gram stained. It appears to be pink cocci. Are the results correct? 3. An example of an antibiotic that inhibits cell wall synthesis would be : a. fluroquinolone b. aminoglycoside c. quinolone d. Beta lactam 4. Small translucent colonies with a zone of beta hemolysis was isolated from a throat culture. Which of the following tests would be useful for identification? a. gram stain b.bile solubility c.bacitracin susceptibility d.quelling test 5. Which of the following Streptococci are Beta hemolytic and CAMP positive? a. Group D b. Group A c. Group B d. Group C 6. Strep. pneumoniae can be differentiated best from the viridans group by: a. gram stain b. type of hemolysis c. colonial morphology d. Optichin disk susceptibility List an alternative test and its results used for identification of the organisms listed below. Organism Test Alternative Tests and the Test Result Staph. aureus Coagulase positive _____________________________ Beta Strep group A "A" disc positive _____________________________ Strep. Pneumoniae Quelling test postive _____________________________ Enterococcus PYR positive _____________________________ Beta Strep group B Hippurate positive _____________________________
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Answers 1. c 2. They are incorrect because the bacteria should be gram positive. 3.
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This note was uploaded on 08/26/2010 for the course CLLS 213 taught by Professor Kozlak during the Spring '07 term at Springfield.

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Microbiology Exam 3 - Microbiology Exam 3 review 1 A colony that appears to be creamy yellow on BAP and is coagulase poitive is most likely a

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