Define fastidious-What is an enriched media

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Differential Media - Virtual Interactive Bacteriology Laboratory (msu.edu)

Review the Differential Media information on the Virtual Interactive Bacteriology Laboratory webpage. At the bottom of the page, be sure to click on "Module" to review each of the different types of differential media. Then answer the questions below

1. If a bacteria produces an alpha (α); beta (β) or gamma (γ) hemolytic pattern on blood agar, what does this tell you about the bacteria?

2. What is the difference between a medium that is selective versus differential?

3. Define fastidious.

4. What color will the colonies of a lactose-fermenting bacteria grown on EMB agar be?

5. Since Staphylococcus bacteria will grow on Mannitol salt agar, what type of bacteria does this make the bacteria?

6. When working with bacteria, what are three specific observations that should be made when looking at culture plates?

7. What is an "enriched" media? Give an example.

8. Gardnerella vaginalis is a gram-positive bacteria. Would colonies be present if the bacteria were grown on Thayer-Martin agar?

9. Why does Staphylococcus aureus have yellow colonies when grown on Mannitol Salt Agar?

10. Pseudomonas aeruginosa grown on a slant of Tripple Sugar Iron Agar (TSI) turns the entire slant red. What does this indicate about the bacteria?

Reference no: EM133893573

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