MED MICRO LAB FINAL USI 2026/2027 | MICROBIOLOGY
PRACTICE QUESTIONS, ANSWERS & COMPREHENSIVE STUDY
GUIDE
1 of 33
Definition
citrate test
Give this one a go later!
after performing the
macconkey's agar test, you
after performing a citrate test, there is
discover that your microbe can
no color change...
ferment lactose. What test
would you perform next?
after performing a catalase test, your
after performing a citrate test, the
specimen does not have any
color changes to blue...
bubbles...
, Don't know?
2 of 33
Definition
pseudomonas aerugenosa
Give this one a go later!
microbe is bacitracin susceptible and obligate aerobe that is oxidase
bile esculin negative... positive
microbe is bile esculin postive and microbe is bacitracin resistant and
has any bacitracin result... bile esculin negativ...
Don't know?
3 of 33
Definition
oxidase test
Give this one a go later!
now that you have a gram positive after performing a citrate test, the
microbe, what test is next? color changes to blue...
, after doing an oxidase test on your
what test would you do on a a
gram negative bacilli, the swab turns
gram negative baccili?
dark purple...
Don't know?
4 of 33
Definition
Streptococcus pneumoniae
Give this one a go later!
your microbe is esculin positive and microbe is bacitracin susceptible and
has any reacion to optichin test bile esculin negative...
your microbe is optichin
microbe is bacitracin resistant and
susceptible and bile esculin
bile esculin negativ...
negative...
Don't know?
PRACTICE QUESTIONS, ANSWERS & COMPREHENSIVE STUDY
GUIDE
1 of 33
Definition
citrate test
Give this one a go later!
after performing the
macconkey's agar test, you
after performing a citrate test, there is
discover that your microbe can
no color change...
ferment lactose. What test
would you perform next?
after performing a catalase test, your
after performing a citrate test, the
specimen does not have any
color changes to blue...
bubbles...
, Don't know?
2 of 33
Definition
pseudomonas aerugenosa
Give this one a go later!
microbe is bacitracin susceptible and obligate aerobe that is oxidase
bile esculin negative... positive
microbe is bile esculin postive and microbe is bacitracin resistant and
has any bacitracin result... bile esculin negativ...
Don't know?
3 of 33
Definition
oxidase test
Give this one a go later!
now that you have a gram positive after performing a citrate test, the
microbe, what test is next? color changes to blue...
, after doing an oxidase test on your
what test would you do on a a
gram negative bacilli, the swab turns
gram negative baccili?
dark purple...
Don't know?
4 of 33
Definition
Streptococcus pneumoniae
Give this one a go later!
your microbe is esculin positive and microbe is bacitracin susceptible and
has any reacion to optichin test bile esculin negative...
your microbe is optichin
microbe is bacitracin resistant and
susceptible and bile esculin
bile esculin negativ...
negative...
Don't know?