Biochemical Quiz

What is the positive reaction for indole?

Pink

What is the positive reaction for VP?

Pink (2)

What is the positive reation for citrate?

Blue

What is the negative reaction for citrate?

yellow

What is the A/A reaction for TSI

Yellow/yellow

What is the K/A reaction for TSI?

Red/yellow

What is the K/K reaction for TSI?

Red/Red

What is a positive TDA reaction?

Brown

WHat is a positve H2S reaction?

Black

What is a positive urea reaction?

Pink (3)

What is a gel positive reaction?

Black (2)

What species exhibit a positive indole reaction?

E. coli

Edward

C. diversus

K. oxytoca

P. vulgaris

Morganella

Prov. (x3)

Y. entero

What species exhibit a positive VP reaction?

Klebsiella

Enterobacter

Serratia

Hafnia

Y. entero @ 25C

What species have a negative citrate reaction?

E. coli

Shigella

S. typhi

Edward

Hafnia

Morganella

Y. pestis

What species exhibit a TSI A/A reaction?

E. coli

Klebsiella

Enterobacter

Hafnia

Y. entero

What species are TDA positive?

Proteus

Prov (x3)

M. morgani

What species are gas negative?

Shigella

S. typhi

P. stuartii

Y. entero

Y. pestis

What species are H2S positive?

Edward

Salmonella

C. freundii

P. mirabilis

P. vulgaris

What species are urea positive?

Klebsiella

Proteus

Prov. rettgeri

Morganella

What species are gel positive?

P. miabilis

P. vulgaris

Serratia

What species have negative motility?

Klebsiella

Shigella

Yersinia