Test Picture Description Result Blood agar Metabolic reaction: positive for complete hemolysis(alpha)because

Test

Picture

Description

Result

Blood agar

Metabolic reaction: positive for complete hemolysis(alpha)because there is bacterial growth.

Color: White

Reaction: Negative

Ph: none

EMB

Metabolic reaction: Positive for fast lactose and low ph due to acid production.

Color: Green

Reaction: Positive

Ph: Acidic

MacConkey

Metabolic Reaction: positive for lactose fermentation, pink it’s also gram negative

Color: pink

Reaction: Positive

Ph: Acidic

MSA

Metabolic Reaction: Positive because its yellow it’s a halophile

Color: Green

Reaction: Positive

Ph: Acidic

MR_48hr

Metabolic Reaction: Positive because glucose was fermented.

Color: pink

Reaction: Positive

Ph: Acidic

MR

Metabolic Reaction: Positive because glucose was fermented.

Color: pink

Reaction: Positive

Ph: Acidic

VP

Metabolic Reaction: Negative because there was no glucose fermented.

Color: yellow

Reaction: Negative

Ph: Acidic

Part 1

I would perform Hektoen Enteric Agar to Isolate the samples for gram negative bacteria. After placing the sample on a hektoen enteric agar only gram negative would grow. The purpose to find why one strain is gram negative is to check if its safe to handle or handle with care because gram negative is more dangerous due to that make treating them more difficult unlike gram positive bacteria.

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