ASCP Microbiology Exam Questions and Answers Updated 2026

ASCP Microbiology Exam Questions
and Answers Updated 2026
AACorynebacteriumAspeciesArecoveredAfromAaAthroatsAcultureAisAconsideredAaApathogenAwhen:A-
AAnswer✓AItAproducesAaApseudomembraneAofAtheAoropharynx.

Grey-blankAcoloniesAwithAaAbrownAhaloAonATisdale'sAAgar.
AnAexotoxin.


AAdematiaceousAmoldAthatAformsAflaskAshapedAphialides,AeachAwithAaAflaskAshapedAcollarette?A-
AAnswer✓APhialophoraAspecies


AAfourAfoldAriseAinAtiterAofAwhichAantibodyAisAtheAbestAindicatorAofArecentAinfectionAwithAwithAgro
upAAAStreptococci?A-AAnswer✓AAntiAstreptomycinAO.


AAmoldAthatAproducesAcoloniesAwithAaAdarkAbrown,AgreenAblack,AorAbackAappearanceAofAbothAsurf
aceAandAreverseAsideAisAclassifiedAasAa:A-AAnswer✓ADematiaceousAmold.A

TheyAareAeasilyArecognizedAandAconfirmedAbyAobservingAdarkAyellowAorAbrownAseptateAhyphaeAupo
nAmicroscopicAexamination.


AApositiveAgermAtubeAtestAisAaApresumptiveAidentificationAforAwhatAtwoAorganisms?A-
AAnswer✓ACandidaAalbicans.A

And.A
CandidaAdubliniensis.


AApositiveASimmonsAcitrateAtestAisAseenAas:A-
AAnswer✓ABlueAcolorAinAtheAmediumAafterA24AhoursAofAincubationAatA35AdegreesAcelisus.


AArapidityAgrowingAnon-
spectateAmoldAthatAproducesAcoloniesAwithAaAgrayAsurfaceAresemblingAcottonAcandyAthatAcoveredAth
eAentireAplate.AMicroscopicAexaminationArevealedAsporangiophoresAarisingAbetween,AnotAopposite,Ath
eArhizoidsAandAproducingApearAshapedAsporangia.A-AAnswer✓AAbsidiaAspecies


AArapidlyAgrowingAhyalineAmoldAbeganAasAaAwhiteAcolonyAbutAsoonAdevelopedAaAblackA"pepper"Ae
ffectAonAtheAagarAsurface.A-AAnswer✓APenicilliumAnotatum



AcanthamoebaA-AAnswer✓AAAgenusAofAamoebaA

,OneAofAtheAmostAcommonAsingleAcelledAeukaryotesAinAsoilAandAfrequentlyAinAfreshAwater.A
HasAtwoAformsA-AmetabolicallyAactiveAtrophozoite.
DormantA-AstressAresistantAcyst.
CausesAkeratitisAandAgranulomatousAamoebicAencephalitis.


AcintobacillusAactinomycetemcomitans.A-AAnswer✓ASmall,AGramAnegativeAcoccobacilli.A

GrowsAslowlyAonAchocolateAandAdoesAnotAgrowAonAMacConkeys.A
CatalaseA-Apositive.A
NitrateAreductionA-Apositive.A
GlucoseAfermentationA-Apositive.A
OxidaseA-ANegative.
UreaseA-ANegative.A
IndoleA-Anegative.


ActinomycesAisraeliiA-AAnswer✓AGramApositiveArods.A
Anaerobe.A
ColoniesAonAbloodAagarAresembledA"molorAteeth"AinAformation.A
PartAofAtheAnormalAfloraAofAtheAmouthAandAtonsils.A
SulfurAgranulesA-AgranularAmicrocoloniesAwithAaApurpleAtieAexudate.


AeromonasAhydrophiliaA-AAnswer✓AGramAnegativeAfermentativeAbacilli.

BetaAhemolyticAonAblood.A
CreamAcoloredAcoloniesAonAMacConkeysA.A
OxidaseApositive.A
CatalaseApositive.


AeromonasAhydrophilia.A-AAnswer✓AGramAnegativeAbacilli.

Non-fastidious.A
OxidaseApositive..
BetaAhemolytic.
Motile.A
ProducesAdeoxyribonuclease.

,AlsoAknownAasAhydatidAworm,AdogAtapeAworm,AhyperAtapeAworm.A
ItAisAcestodeAthatAinvadesAtheAsmallAintestines.A
TheAlifecycleAinvolvesAdogsAandAwildAcarnivoresAasAaAdefinitiveAhostAforAtheAadultAtapeworm.A-
AAnswer✓A


AlsoAknownAasAhydatidAworm,AdogAtapeAworm,AhyperAtapeAworm.A
ItAisAcestodeAthatAinvadesAtheAsmallAintestines.A
TheAlifecycleAinvolvesAdogsAandAwildAcarnivoresAasAaAdefinitiveAhostAforAtheAadultAtapeworm.A-
AAnswer✓A


AlsoAknownAasAhydatidAworm,AdogAtapeAworm,AhyperAtapeAworm.A
ItAisAcestodeAthatAinvadesAtheAsmallAintestines.A
TheAlifecycleAinvolvesAdogsAandAwildAcarnivoresAasAaAdefinitiveAhostAforAtheAadultAtapeworm.A-
AAnswer✓A



Anaplasmosis.A-AAnswer✓AIsAaAdiseaseAcausedAbyAtheAbacteriumAAnaplasmaAphagocytophilium.A

TransmittedAtoAhumansAbyAinfectedAtick.A
TransmittedAbyAblackAleggedAtickA-AIxodesAspecies.


AnthraxA-AAnswer✓ACausedAbyAbacterium,ABacillusAanthracis.

ItAisAspreadAbyAcontactAwithAsporesAofAbacteriaAwhichAareAoftenAfromAinfectiousAanimalAproducts.A
TransmissionAisAbyAbreathing,AeatingAorAcontactAthroughAbrokenAskin.


AntimicrobialAsusceptibilityAtestingAofAanaerobesAisAdoneAbyAwhatAmethod?A-
AAnswer✓AMicrotubeAbrothAdilution.


AppearanceAofASalmonellaAtyphiAcoloniesAonABismuthASulfiteAAgar.A-
AAnswer✓ABlackAwithAaAmetallicAsheen.


AreAMycobacteriumAaviumAandAMycobacteriumAkansaiiAslowAgrowersAorArapidAgrowers?A-
AAnswer✓ASlowAgrowers.



AreAStreptococcusAAAandAStreptococcusABAresistantAorAsensitiveAtoASXT?A-AAnswer✓AResistant.

, AscosporesAareAformedAbyAwhichAisolate?A-AAnswer✓ASaccharomycesAcerevisiae.


AspergillusAspeciesAthatAproducesAaAgreenAsurfaceAonASabouraudAagarAinA5AdaysAatA30AdegreesACe
lsius.AMicroscopicAexaminationAshowedAclubAshapedAvesiclesAwithAsporulationAonlyAfromAtheAtopAhal
fAofAtheAvehicle.A-AAnswer✓AAspergillusAfumigatus.



AtAwhatApHAdoesAtheAmethylAredAtestAbecomeApositive?A-AAnswer✓A4.5.



BacillusAanthracis.A-AAnswer✓ABetaAhemolysisA-Anegative.A

MotilityA-Anegative.A
OxidaseA-Anegative.A
CatalaseA-Apositive.A
LecithinaseA-Apositive.A
GlucoseA-Apositive.


BacillusAcereus.A-AAnswer✓ABetaAhemolyticA-Apositive.A
MotilityA-Apositive.A
OxidaseA-Anegative.A
CatalaseA-Apositive.A
LecithinaseA-Apositive.A
GlucoseA-Apositive.


BacillusAspecies.A-
AAnswer✓ALargeAgramApositiveAsporeAformingArodsAgrowingAonAbloodAagarAasAlarge,Araised,Abet
aAhemolyticAcoloniesAthatAspreadAandAappearAasAfrostedAgreenAgrayAglass.


BacteroidesABileAEsculinAAgarA-AB.B.E.A-
AAnswer✓ASelective,AdifferentialAforArecoveryAofABacteroidesAfragilisAgroup.



BartonellaA-AAnswer✓AGramAnegativeAbacteria.

FacultativeAintracellarAparasite.A
ItAisAtransmittedAbyAvectorsAsuchAasAticks,Aflees,AsandAfliesAandAmosquitoes.