Microbio Lab Week 5 2/5

1. 1 Phenylethyl Alcohol Agar is a selective media that inhibits the growth of ----- and allows the growth of -------. It inhibits by by interfering with the ------ synthesis.

   1. Agram positives, gram negatives, membrane formation
   2. Bgram negatives, gram positives, cell wall
   3. Cgram positives, gram negatives, ATP
2. 2If you were to conduct an experiment using Phenylethyl Alcohol Agar, Escherichia coli and Staphyloccocus epidermidis, which would grow?
   
   Grow: [blank_start]Staph epi[blank_end]
   Not grow: [blank_start]e. coli[blank_end]

   1. AStaphylococcus epidermidis
   2. BEscherichia coli
   3. CEscherichia coli
   4. DStaphylococcus epidermidis
3. 3If you use Columbia CNA with 5% sheep blood agar with the following M.O.'s:
   Escherichia coli
   Streptococcus pyogenes
   Enterococcus faecalis
   Staphylococcus aureus
   Staphylococcus epidermidis
   
   Which of the following would be alpha hemolytic?

   1. AStaphylococcus epidermidis
   2. BStreptococcus pyogenes
   3. CEscherichia coli
   4. DEnterococcus faecalis
   5. EStaphylococcus aureus
4. 4If you use Columbia CNA with 5% sheep blood agar with the following M.O.'s:
   Escherichia coli
   Streptococcus pyogenes
   Enterococcus faecalis
   Staphylococcus aureus
   Staphylococcus epidermidis
   
   Which of the following would be beta hemolytic?

   1. AEscherichia coli
   2. BStaph. epidermidis
   3. CStaph. aureus
   4. DStrep. pyogenes
   5. EEntero. faecalis
5. 5If you use Columbia CNA with 5% sheep blood agar with the following M.O.'s:
   Escherichia coli
   Streptococcus pyogenes
   Enterococcus faecalis
   Staphylococcus aureus
   Staphylococcus epidermidis
   
   Which of the following would be gamma hemolytic?

   1. AStaph. epidermidis
   2. BStaph. aureus
   3. CEntero. faecalis
   4. DStrep. pyogenes
   5. EEscherichia coli
6. 6If you use a Mannitol Salt Agar plate, and the following M.O.'s:
   Staphylococcus epidermidis
   Staphylococcus aureus
   
   Which will indicate mannitol fermentation and by showing what color?

   1. AStaph. epi/ red
   2. BStaph. aureus/ yellow
   3. CStaph. epi/ yellow
   4. DStaph. aureus/ red
7. 7If you use a catalase test on the following M.O.'s:
   Staphylococcus spp.
   Streptococcus spp.
   
   Which one will produce bubbles?

   1. AStaphylococcus spp.
   2. BStreptococcus spp.
8. 8What is the equation for a positive catalase test?

   1. A2H2O to 2O2 + H2O
   2. B2H2O2 to O2 + 2 H2O
   3. CH2O2 to 2O2 + 2H2O
9. 9If you use a bile esculin test on the following M.O.'s:
   Enterococcus faecalis
   Streptococcus agalactiae
   Streptococcus pyogenes
   
   Which M.O. will produce a positive result and what color will it be?

   1. AEntero. faecalis, black
   2. BStrep. agalactinae, black
   3. CStrep. pyogenes, clear
10. 10If you are using the CAMP test and the following M.O.'s:
    Streptococcus agalactiae
    Streptococcus pyogenes
    Enterococcus faecalis
    
    Which is from Group B Strepthococcus (positive)?

    1. AStrep. pyogenes
    2. BStrep. agalactiae

11. 11If you are using the coagulase test and you get clumps on your card, you must likely have?

    1. AEscherichia coli
    2. BStreptococcus pyogenes
    3. CStaphylococcus aureus
    4. DStaphylococcus epidermidis

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Quiz on Microbio Lab Week 5 2/5, created by Rochelle T on 28/02/2019.

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Rochelle T

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