Below is an image of 3 different bacteria, letter labeld, growing on MacConkey Agar.Note that bacteria such as E. coli use mixed acid fermentation, with very high acid production whichwill cause a colored precipitation around colonies on MacConkey agar.MacConkey AgarC Match the descriptions below to the correct letter labeled bacteriumthis Bacterium/Bacteria can grow in the[Choose ]presence of bile salts and crystal violet andcannot ferment lactose, "lac -"[Choose]Bacteria B & Cthis Bacterium/Bacteria can grow in thepresence of bile salts and crystal violet andBacterium Ccan ferment lactose, "lac +"Bacterium AThis Bacterium is possibly _E. coli_, anindicator of fecal contamination of food or[ Choose ]waterThis Bacterium could be either_Salmonella_,Shigella_ or Yersinia_ which can grow onMacConkey agar and are lac--1.[Choose]>

MacConkey Agar is a type of differential media and selective media. It used for detection,…

Answered: B A C | bartleby

Science

Biochemistry

B A C

Biomedical Instrumentation Systems

1st Edition

ISBN:9781133478294

Author:Chatterjee

Publisher:Chatterjee

Chapter6: Biomedical Electrodes, Sensors, And Transducers

Section: Chapter Questions

Problem 10Q

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Question

Below is an image of 3 different bacteria, letter labeld, growing on MacConkey Agar.
Note that bacteria such as E. coli use mixed acid fermentation, with very high acid production which
will cause a colored precipitation around colonies on MacConkey agar.
MacConkey Agar
C

Match the descriptions below to the correct letter labeled bacterium
this Bacterium/Bacteria can grow in the
[Choose ]
presence of bile salts and crystal violet and
cannot ferment lactose, "lac -"
[Choose]
Bacteria B & C
this Bacterium/Bacteria can grow in the
presence of bile salts and crystal violet and
Bacterium C
can ferment lactose, "lac +"
Bacterium A
This Bacterium is possibly _E. coli_, an
indicator of fecal contamination of food or
[ Choose ]
water
This Bacterium could be either_Salmonella_,
Shigella_ or Yersinia_ which can grow on
MacConkey agar and are lac--
1.
[Choose]
>

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