Which bacterium produced a yellow halo, and how do you interpret this result? • If you grew Staphylococcus epidermidis on MSA, what result would you expect?
Which bacterium produced a yellow halo, and how do you interpret this result? • If you grew Staphylococcus epidermidis on MSA, what result would you expect?
Phlebotomy Essentials
6th Edition
ISBN:9781451194524
Author:Ruth McCall, Cathee M. Tankersley MT(ASCP)
Publisher:Ruth McCall, Cathee M. Tankersley MT(ASCP)
Chapter1: Phlebotomy: Past And Present And The Healthcare Setting
Section: Chapter Questions
Problem 1SRQ
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• Which bacterium produced a yellow halo, and how do you interpret this result?
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• If you grew Staphylococcus epidermidis on MSA, what result would you expect?
**Image Description**: The image shows two petri dishes. The petri dish on the left is labeled "Negative Control (uninoculated)" and appears uniformly red. The petri dish on the right is labeled "Staphylococcus aureus" and shows a color change from red to yellow.
**Explanation**:
- The negative control petri dish, which was not inoculated with bacteria, remains red, indicating no reaction.
- The petri dish inoculated with *Staphylococcus aureus* shows a yellow color change, indicating a positive reaction.
**Task**: Complete the data table based on the observations from the petri dishes.
**Data**
* Complete the data table.
**Table 3. Mannitol Salt Agar**
| Bacterium | Result |
|------------------------|---------------|
| Staphylococcus aureus | ______ /______|
**Explanation of Graphs/Diagrams**:
- **Negative Control (uninoculated)**: This petri dish serves as a control to ensure that the medium itself does not change color without the presence of bacteria.
- **Staphylococcus aureus**: The color change to yellow suggests that *Staphylococcus aureus* can ferment mannitol, a characteristic feature evaluated using Mannitol Salt Agar.
Complete the table with the appropriate observations and results derived from the image.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ffc0e0d9d-d792-42b3-b08d-bd6c240e0148%2F4cf222d1-76d7-4d24-9904-859135448ccd%2Fk3x00zk_processed.png&w=3840&q=75)
Transcribed Image Text:**Data**
**Image Description**: The image shows two petri dishes. The petri dish on the left is labeled "Negative Control (uninoculated)" and appears uniformly red. The petri dish on the right is labeled "Staphylococcus aureus" and shows a color change from red to yellow.
**Explanation**:
- The negative control petri dish, which was not inoculated with bacteria, remains red, indicating no reaction.
- The petri dish inoculated with *Staphylococcus aureus* shows a yellow color change, indicating a positive reaction.
**Task**: Complete the data table based on the observations from the petri dishes.
**Data**
* Complete the data table.
**Table 3. Mannitol Salt Agar**
| Bacterium | Result |
|------------------------|---------------|
| Staphylococcus aureus | ______ /______|
**Explanation of Graphs/Diagrams**:
- **Negative Control (uninoculated)**: This petri dish serves as a control to ensure that the medium itself does not change color without the presence of bacteria.
- **Staphylococcus aureus**: The color change to yellow suggests that *Staphylococcus aureus* can ferment mannitol, a characteristic feature evaluated using Mannitol Salt Agar.
Complete the table with the appropriate observations and results derived from the image.
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