Year 12s: what will be the first way you research your future options? >>

Year 12s: what will be the first way you research your future options? >>

Year 12s: what will be the first way you research your future options? >>

pharmacology: mircobiology

sukhcharn sambhi

Can any help me answer the following two questions. i would be extremly greatfull

7 (A). Which species of bacteria went the brightest and deepest colour of pink following incubation on the MacConkey Agar?

7 (B). Explain carefully why this happened:

Bacteria that are lactose fermenting will turn pink in MacConkey Agar. Usually they will be E Coli/Enterobacter/Klebsiella.

Which choices of bacteria do you have?

sukhcharn sambhi

OP

i had E.coli, B subtilis and P.aeruginsoa. i know that the E.coli turns pink but i dont know why. thanks for the help.

Out of those it's E Coli, cause E Coli ferments lactose, hence turns pink in MacConkey agar which contains lactose :smile:

:smile:

sukhcharn sambhi

OP

Democracy

Out of those it's E Coli, cause E Coli ferments lactose, hence turns pink in MacConkey agar which contains lactose :smile:

:smile:

Cheers mate

sukhcharn sambhi

Cheers mate

No problem :biggrin:

:biggrin:

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