Lab Quiz 5

1. This is an image of a catalase test. Which of the following products result from this particular test?

1. glucose
2. lactic acid
3. H2O
4. Iron sulfide (FeS)
5. more than one of the above is correct
6. none of the above is correct

2.  This is an image of an inoculated Blood Agar Plate. Which of the following differential agents is found in this particular agar?

1. colistin
2. nalidixic acid
3. red blood cells
4. hemolysin
5. none of the above is correct
6. more than one of the above is correct

3. This is an image of an inoculated Mannitol Salt Agar. Which of the following genus and species is most likely indicated in this image

1. Staphylococcus aureus
2. Streptococcus pyogenes
3. Streptococcus pneumoniae
4. Enterococcus durans
5. Staphylococcus epidermidis

4. This is an image of an inoculated Blood Agar Plate. Which of the following genus and species most likely indicated in this image?

1. Streptococcus pyogenes
2. Streptococcus pneumoniae
3. Enterococcus durans
4. Staphylococcus epidermidis

5. This is an image of an inoculated Coagulase test. Which of the following selective agents is found in this particular test?

1. lactose
2. glucose
3. prothrombin
4. mannitol
5. H2O
6. none of the above

6.  This is an image of an Oxidase test result. Which of the following Gram-positive genus and species is most likely indicated in this image

1. Micrococcus luteus
2. Streptococcus pyogenes
3. Streptococcus pneumoniae
4. Enterococcus durans
5. Staphylococcus epidermidis

7. This is an image of an inoculated Bile Esculin Agar plate. Which of the following Gram-positive genus and species is most likely indicated in this image

1. Staphylococcus aureus
2. Streptococcus pyogenes
3. Streptococcus pneumoniae
4. Enterococcus durans
5. Staphylococcus epidermidis

8.  This is an image of an inoculated DNAse Agar plate. Which of the following differential agents is found in this particular agar

1. bile salts
2. NaCl
3. esculin
4. DNA
5. none of the above

9. This is an image of an inoculated Mannitol Salt Agar. Which of the following products is found in this particular agar?

1. oligonucleotides
2. triglycerides
3. pyruvic acid
4. lactic acid
5. hydrochloric acid

10.  This is an image of an inoculated DNAse Agar plate. Which of the following indicators is found in this particular agar?

1. phenol red
2. methyl red
3. bromothymol blue
4. methyl green

Lab Quiz 5 Answers

1. C. H2O

2. C. Red Blood Cells