MICROBIOLOGY: CREATE a dichotomus key for the ALLL OF THE THINGS below! each tes

Question

MICROBIOLOGY: CREATE a dichotomus key for the ALLL OF THE THINGS below! each test/microorganism must appear at least one:

Tests:

1. EMB 2. MSA 3. Blood Agar 4. PEA 5. SIM 6.Citrate 7.Phenol red (both glucose and sucrose) 8. BEA 9. Catalase. 10. Gram Stain

Bacterias:

1. Escherichia Coli

2. Enterobacteria Aerogene

3. Proteus Vulgaris
4. Serratia Marcescens

5. Pseudomonas Aerugenosa

6. Citrobacter Freundii

7. Staphylococcus Aureus

8. Staphylococcus Epidermidis

9. Entrococcus Faecalis

10. Mictococcus Leutues

Explanation / Answer

EMB- Escherichia Coli & Enterobacteria Aerogene because Eosin methylene blue is a selective stain for gram-negative bacteria MSA- Staphylococcus Aureus & Staphylococcus Epidermidis because Mannitol salt agar or MSA is used selective and differential growth medium Blood Agar - Staphylococcus Aureus because contains general nutrients and 5% sheep blood PEA- Staphylococcus Aureus Because a Gram positive organism, grows on this PEA plate SIM- Escherichia Coli Enterobacteria Aerogene, Proteus Vulgaris & Citrobacter Freundii Citrate - Enterobacteria Aerogene, Proteus Vulgaris & Citrobacter Freundii Because Citrate is an organic molecule that can be utilized by bacteria that produce the enzyme citrase Phenol red (both glucose and sucrose) - Staphylococcus Aureus & Staphylococcus EpidermidisBecause Staphylococcus aureus ferments mannitol S. aureus changes the color of the medium from pink to yellow due to acid by-products of mannitol fermentation BEA- Entrococcus Faecalis & Enterobacteria Aerogene, e.coli Because all are gram negative Catalase. - Entrococcus Faecalis Mictococcus Leutues & Staphylococcus Epidermidis Because all are gram positive Gram Stain- Staphylococcus Aureus & ECOLI

Related Questions

Navigate

• Browse (All)
• Browse M
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.