If there is growth and a color change in the Mannitol Salt Plate, which microorganism is it most likely to be? Staphrlococcus aureus Streptococcus faecalis O Staphylococcus epidermidis Streptococcus agalactiae

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
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**Question:**
If there is growth and a color change in the Mannitol Salt Plate, which microorganism is it most likely to be?

**Options:**

- Staphylococcus aureus
- Streptococcus faecalis
- Staphylococcus epidermidis
- Streptococcus agalactiae

**Answer:**
Staphylococcus aureus (selected option)

**Explanation:**
The Mannitol Salt Agar (MSA) is used to differentiate pathogenic staphylococci, primarily Staphylococcus aureus, which ferments mannitol to produce a color change. This is indicated by the yellow color due to acid production, confirming the presence of Staphylococcus aureus when there is both growth and a color change.
Transcribed Image Text:**Question:** If there is growth and a color change in the Mannitol Salt Plate, which microorganism is it most likely to be? **Options:** - Staphylococcus aureus - Streptococcus faecalis - Staphylococcus epidermidis - Streptococcus agalactiae **Answer:** Staphylococcus aureus (selected option) **Explanation:** The Mannitol Salt Agar (MSA) is used to differentiate pathogenic staphylococci, primarily Staphylococcus aureus, which ferments mannitol to produce a color change. This is indicated by the yellow color due to acid production, confirming the presence of Staphylococcus aureus when there is both growth and a color change.
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