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Gram negative small bacilli. Did it grow on MSA? Is it halophile? What are the c

ID: 263167 • Letter: G

Question

Gram negative small bacilli.

Did it grow on MSA? Is it halophile?

What are the characteristics of this bacteria?

What are the metabolic requirements of this bacteria?

What is this bacteria?

Test Completed

What change (if any) is observed?

What does this color change mean?

Phenol red test

Redish orange

Negative reaction, acid not present.

Citrate utilisation test

Green

PH change turns the color blue to green

SIM test

Pink colored

Positive reaction shows pesence of e. coli.

Mac Conkey Agar

Pale color

Bacteria didn’t ferment

Methyl red test

Yellow

No acid produced.

Test Completed

What change (if any) is observed?

What does this color change mean?

Phenol red test

Redish orange

Negative reaction, acid not present.

Citrate utilisation test

Green

PH change turns the color blue to green

SIM test

Pink colored

Positive reaction shows pesence of e. coli.

Mac Conkey Agar

Pale color

Bacteria didn’t ferment

Methyl red test

Yellow

No acid produced.

Explanation / Answer

Gram negative small bacilli. Did it grow on MSA? Is it halophile? What are the c