Media mastery
This agar contains crystal violet and bile salts to inhibit Gram-positive organisms
What is MacConkey Agar
This enzyme is what causes the pink color to colonies and agar on the MAC
What is lactase
This genus is nonmotile and displays mucoid colonies
What is Klebsiella
This antigen is known as the somatic antigen
What is O antigen
This species TSIA is A/A with gas and citrate negative
What is Escherichia coli
This is the pH indicator in the citrate test
This enzyme breaks down urea into ammonia and CO2, turning the medium pink
What is urease
This genus is known for displaying swarming motility on BAP
This antigen is known as the flagellar antigen
What is H antigen
This test detects H2S production, indole and motility
What is SIM
This agar is used to differentiate Salmonella and Shigella from other normal flora enterics
This enzyme is responsible for DNA hydrolysis and is positive in Serratia marcescens
What is DNase
This genus may produce a brick red pigment on MAC and can be confused as lactose positive
What is Serratia
This antigen can interfere with the detection of the O antigen
What is K antigen
In the TSIA which sugar is on the top and which is on the bottom
What is lactose on top and glucose on bottom
Which media is the most sensitive for H2S production
What is SIM
This enzyme is detected in the ONPG test
What is Beta-galactosidase
This species shows a metallic green sheen on EMB agar
What is Escherichia coli
What antigen does Klebsiella lack due to being nonmotile in nature
What is H antigen
Which organisms test positive in PDA test
What is Proteus, Providencia, Morganella
This reagent must be added to PDA test after incubation
What is ferric chloride
This enzyme is detected using bromocresol purple as the pH indicator
What is amino acid decarboxylase
This genus may be confused with Klebsiella due to its capsule production and forms pink colonies on MAC
What is Enterobacter
This antigen is unique to Salmonella Typhi and contributes to its virulence
What is Vi antigen
This genus is PDA positive, citrate positive, and TSIA- K/A
What is Morganella