BIOCHEMICAL TESTS FOR GRAM-NEGATIVE BACILLI Flashcards by Claire Dacer | Brainscape

Q

REACTIONS ON TRIPLE SUGAR IRON (TSI)

A

A. K/K = NO FERMENTATION
B. K/A = GLUCOSE FERMENTATION
C. A/A = LACTOSE FERMENTATION

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Q

A. K/K = NO FERMENTATION

A

ALKALINE SLANT/ACID BUTT

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Q

C. A/A = LACTOSE FERMENTATION

A

ACID SLANT/ACID BUTT

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Q

is a two-step process. In the first step, H2S is formed
from sodium thiosulfate.

A

H2S PRODUCTION

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Q

B. K/A = GLUCOSE FERMENTATION

A

ALKALINE SLANT/ACID BUTT

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Q

formation of any bubbles or splitting of the medium in the butt or complete displacement of the
medium from the bottom of the tube.

A

GAS PRODUCTION

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