MICROBIOLOGYg ANDg PARASITOLOGYg ANDg PARASITOLOGY 1
1. Whichgamonggthegfollowinggstatementsg d 6. Whichgamonggthegfollowinggisgtruegaboutg
oesgnotgindicategthegpracticalgusegofgmicro Gram’sgstaining?
biologygingthegfieldgofgdentistry? 1. Itgstainsgagspecialgorganellegofgthegcel
a. Itggivesgangideagonghowgtogproperlyg lgintogtwogcolors
sterilizegthegdifferentgequipmentging t 2. Itgisgagvitalgstain
hegclinic 3. Asidegfromgusinggagdroppergwhengsta
b. Itgpreventsgthegdevelopmentgofgag po ining,gyougcangsimplygsubmergegthege
st-surgicalginfection ntireggroupsgofgslidesgallgatgthegsame
c. Itgnarrowsgthegchoicesgofgorganismsg gtimegforgbatchgstaining
thatgcangpossiblygcauseganginfection 4. Itgcontainsgagmordantgthatgisgusedgto
d. Itgprovidesgagdetailedgideagonghowgt genhancegthegstaininggofgagbacterialgc
ogproperlygsuturegagpost- ell
extractiongwound 7. Whichgamonggthegfollowinggisgnotgtrueg ab
2. Whichgamonggthegfollowinggrefersgtogthegc outgGram’sgstain?
orrectgordergofgGram’sgstaining? 1. Itgisgusedgtogdifferentiategorganismsg
1. Crystalgviolet>iodine>safranin>alcohol accordinggtogtheirgstaininggreactiong a
2. Iodine>crystalg violet>alcohol>safranin ndgmorphology
3. Crystalgviolet>iodine>alcohol>safranin 2. Itgisgangexamplegofgagsimplegstain
4. Iodine>alcohol>crystal g violet>safranin 3. Gramgpositivegorganismsgaregvioletgin
3. Whichg amongg theg followingg isg notg true gcolor
g aboutgagbacterialgstain? 4. Gramgvariablegrefersgtogagconditiong
a. Itgenhancesgthegclaritygofgangorganis wheregingbacterialgcellsgappeargasgeit
mgbygincreasinggthegrefractivegindex hergpinkgorgviolet
b. Itgcolorsgspecialgstructuregofgagbacteri 8. Ag50-
a yeargoldgpatientgcamegingyourgclinic,gupong
c. Itgaidsgingthegvisualizationgofgorganis observation,ghisgmolargtoothgappearsgtogb
mgforgeasiergcounting egcolorgblack,gthegpatientgisgcomplainingga
d. Togethergwithgproteingandgmoisture, boutgseveregpaingfromgthegteethgmovinggt
gtheygaidgingtheggrowthgofgagbacteria oghisgskull.gAsgagdentistgyougdidgnotgperfor
lgcell medgangextractiongbecauseghegmadegment
4. Whichgamonggthegfollowinggisgtruegaboutgf ionedgthatghegisgsufferinggfromgagbloodgdis
ungi? ordergknowngasgThrombocytopenia,gagcond
a. Itgcangbegagyeastgandgmoldgatgcertai itiongwhereginghisgplateletsg(bloodgcells)gar
ngtemperatureghencegthegnamegdim egveryglowgandgcangnotgproperlygclotgango
orphism pengwound.gYougrequestedgforgagmicrobiol
1. Theygappeargasgmushroomgundergthe ogygstudygtogknowgthegcausegofgtheginfecti
gmicroscope on,gupongpresentinggthegresult,gitgshowedg
2. Theygalwaysgcauseginfection Gramgpositivegcoccigingchains.gWhichgamon
3. Theygdividegbygmeansgofgbudding,gw ggthegfollowinggcharacteristicgwillgleadgyou
hichginvolvesgthegfertilizationgofgange gtogthegconclusiongthatgthegorganismgisgStr
gggcellgfromgagmothergfungus eptococcusgmutans?
5. Whichgamonggthegfollowinggisgtruegaboutg 1. Thegorganismgshouldghavegaggreenish
angimmunoglobulin? gcolorgaroundgitgwhenginoculatedginga
1. Itgisgbasicallygagprotein gbloodgagargplate
2. Itg stimulatesg theg immuneg systemg t 2. ItgshouldgbegresistantgtogNovobiocin
ogproducegantibodygagainstgangantige 3. ItgshouldgbegsusceptiblegtogErythromy
n cin
3. Itg containsg ag Fabg regiong whichg serv 4. Itgshouldgbegcoagulasegpositive
esgasgthegbasisgforgantibodygattachm
ent
4. Itgisgproducesgingthegliver
“Whateverg youg do,g workg atg itg withg allg yourg heart,g asg workingg forg theg Lord,g notg forg m
en.”gColossiansg3:23
,2 MICROBIOLOGYgANDgPARASITOLOGY
9. Whichg amongg theg followingg bacteriag i 16. Thegfollowinggrefersgtogthegnaturalgdefens
sgarrangedgingthisgtetrad? egmechanismgofgthegurinarygtractgexceptg
1. Staphylococcus .
2. Veilonella a. Lactobacillusg acidophilus
3. Gafknia b. Menstrualgcyclegofgagfemale
4. Neiserria c. Mucosalgsurfacegofgthegbladder
10. Whichg amongg theg followingg showsg th d. gPresenceg ofg normalg florag suchg as
egpropergwaygofgwritinggagbacterialgname? Staphylococcusg saprophyticus
1. Staphylococcusg Aureus 17. Whichg amongg theg followingg organismsg
2. Staphylococcusg Aureus causesgVincent’sgdisease?
3. Staphylococcusg aureus a. Fusiformg bacteria
4. Staphylococcusg aureus b. Fusibacterium
11. Whichg amongg theg followingg refersg tog th c. Ruthia
egcorrectgordergofgGram’sgstaining? d. Streptococcusg mutans
1. Crystalgviolet>iodine>safranin>alcohol 18. Whichgamonggthegfollowinggstatementsgbe
2. Iodine>crystalg violet>alcohol>safranin stgdescribesghowgagbacterialgcellgcausesgm
3. Crystalgviolet>iodine>alcohol>safranin eningitis?
4. Iodine>alcohol>crystal g violet>safranin a. Theginhibitiongofgphagocytosis
12. Whichgamonggtheg followingg organismsg does b. ThegbreakagegofgthegBBB
notgneedgoxygen? c. Theglysisgofgthegredgbloodgcells
1. Veilonella d. Theg persong ingestsg theg braing ofg a
2. Staphylococcus nginfectedgpig
3. Legionella 19. Ang infectiong ofg theg bloodg dueg tog th
4. Pseudomonas egpresencegofgbacteriagisgknowngasg .
13. Whichgamonggthegfollowinggisgtruegaboutg a. Bacteremia
angimmunoglobulin? b. Septicemia
1. ItgisgdirectlygproducedgbygagBgcell c. BI
2. Itgisgconstantlygatgagregulargrate,gwith d. VBI
gorgwithoutgangantigen 20. Whichgamonggthegfollowinggvirusesgisgnotg
3. Theregaregsomegcasesgingwhichgangan agDNAgvirus?
tibodygisgdirectlyginjectedgingangindivi a. Parvovirus
dual b. Papillomag virus
4. BreastgmilkgisgrichgingIgG c. Picornagvirus
14. Theg infectiong ofg theg sking refersg tog the d. Hepadnag virus
g inflammationg ofg ag hairg follicleg isg know 21. Whichgamonggthegfollowinggindividualsgwill
ng as gmostglikelygdevelopgmeningitisgfromgStrep
. tococcusgagalactiae?
a. Cellulitis a. Ag1gweekgoldginfant
b. Folliculitis b. Agkinderg2gpupil
c. Curbuncle c. Agconstructiongworker
d. Skingulcer d. Agseniorgcitizen
15. Theg inflammationg ofg theg gumsg isg knowng 22. Whichg amongg theg followingg diseasesg will
as gmostglikelygcausegcellulitis?
. a. DiabetesgmellitusgtypegII
a. Gummitis b. Diabetesg insipidus
b. Gingivitis c. DiabetesgmellitusgtypegI
c. Ulcer d. Burn
d. Vincent’sg disease
“Callg tog Me,g andg Ig willg answerg you,g andg showg youg greatg andg mightyg things,g whichg youg dog
notgknow”
Jeremiahg 33:3
, MICROBIOLOGYg ANDg PARASITOLOGYg ANDg PARASITOLOGY 3
b. Trichurisg trichiura
23. Whichgamonggthegfollowinggisgtruegaboutg
c. Entamoebag histolitica
pepticgulcer?
d. Platyhelminthes
a. Thisgisgduegtogagbacterialginfectiongk
nowngasgHelicobactergpylori
b. Thisgisgagconditiongduegtogthegdrilling
gmechanismgofgitsgcausativegagent
c. Thisgconditiongisgduegtogthegexcessga
mountgofgHClgproducedgbygthegstom
ach
d. Itgisgcausedgbyghookworms
24. Oralgthrushgisgduegtogwhatgmicroorganism?
a. Candida
b. Streptoccus
c. Staphylococcus
d. Aspergillus
25. Thegendgproductgofgagmicroorganismgwhen
g itgutilizesgagcarbohydrategmaterialgfromgt
hegoralgcavitygofgangindividualgisgg g .
a. Fructose
b. Citricgacid
c. Fluorine
d. Botulinum
26. Theg g lockingg g ofg g theg g jawg g ing g casesg
g of
Clostridiumgbotulinumgisgduegtog .
a. Theghyperconstrictiongofgthegmuscles
gduegtogthegreleasegofgGABA
b. Thegpoorgconstrictiongofgthegmuscles
gbecausegthegorganismgblocksgthegre
ceptorsgforgAcetylgcholinegA
c. Thegbindinggofgthegmaxillagandgtheg
mandible
d. Theghypergsecretiongofgsaliva
27. Whichgamonggthegfollowinggisgtrueg regardi
nggPlatyhelminths
I. Dorsoventrallyg flat
II. Allg ofg themg areg leafg i
n
shape
III. Thereg isg nog digestiveg syste
m
IV. Presence of
angadhesivegsystem
a. I,gIII
b. I,gII,gIV
c. I,gIII,IV
d. NonegofgthegAbove
28. Phoresisgisgagsymbioticgrelationshipgwhereg
thegorganismgisgnotgphysiologically
dependentgtogtheghost.gWhichgamongg
thegfollowinggisgangexamplegofgagphor
ont?
a. Ascarisglumbricoides
“Whateverg youg do,g workg atg itg withg allg yourg heart,g asg workingg forg theg Lord,g notg forg m
en.”gColossiansg3:23
, 29. Thisg isg ag vesicularg lesiong ing theg sking
withg aghoney-coloredgcrust
a. Erysipelas
b. Impetigo
c. Cellulitis
d. Skingulcer
30. Whichgamonggthegfollowinggisgtruegabo
utgagcapsulatedgorganism?
a. Theygusuallyghemolyzegbloodgco
mpletely
b. Thegcapsulegpresentgcausesgtheg
bacteriagtogmigrategfromgonegpla
cegtoganother
c. Itgcausesgthegorganismgtoginhibitg
thegphagocyticgactiongofgthegwhit
egbloodgcells
d. Itgmakesgthemgeasilygpenetrategi
ntogtheghostgcell
31. Whichgamonggthegfollowinggstatementg
properlygshowsgagphoreticgtypegofgsym
bioticgrelationship?
a. Lactobacillusgacidophilusgisgagnor
malgfloragingthegvagina
b. Entamoebaghistolyiticagdoesgnotg
maturegnorgdevelopginsidegthegst
omachgofgangindividual
c. Ascarisglumbricoidesgcreatinggagb
olusgingthegintestinesgduegtogcop
ulation
d. Enterobiusgvermicularisgcausesgdi
arrhea
32. Thegcausativegagentgofgosmoticgdiarrhe
agisgknowngasgg g .
a. Giardiaglamblia
b. Campylobacterg jejuni
c. Ascariasis
d. Hookworm
33. Vaccination against Diphtheria andgPertussisgwasgintroducedgbyg .
a. Theodoreg Schwann
b. EmilegVongBehring
c. PaulgEhrlich
d. RobertgKoch
34. Prophylaxis against small pox
wasgintroducedgbyg
.
a. PaulgEhrlich
b. EmilgVongBehrning
c. EdwardgJenner
d. RichardgPetri
“Callg tog Me,g andg Ig willg answerg you,g andg showg youg greatg andg mightyg things,g whichg youg dog
notgknow”
Jeremiahg 33:3
1. Whichgamonggthegfollowinggstatementsg d 6. Whichgamonggthegfollowinggisgtruegaboutg
oesgnotgindicategthegpracticalgusegofgmicro Gram’sgstaining?
biologygingthegfieldgofgdentistry? 1. Itgstainsgagspecialgorganellegofgthegcel
a. Itggivesgangideagonghowgtogproperlyg lgintogtwogcolors
sterilizegthegdifferentgequipmentging t 2. Itgisgagvitalgstain
hegclinic 3. Asidegfromgusinggagdroppergwhengsta
b. Itgpreventsgthegdevelopmentgofgag po ining,gyougcangsimplygsubmergegthege
st-surgicalginfection ntireggroupsgofgslidesgallgatgthegsame
c. Itgnarrowsgthegchoicesgofgorganismsg gtimegforgbatchgstaining
thatgcangpossiblygcauseganginfection 4. Itgcontainsgagmordantgthatgisgusedgto
d. Itgprovidesgagdetailedgideagonghowgt genhancegthegstaininggofgagbacterialgc
ogproperlygsuturegagpost- ell
extractiongwound 7. Whichgamonggthegfollowinggisgnotgtrueg ab
2. Whichgamonggthegfollowinggrefersgtogthegc outgGram’sgstain?
orrectgordergofgGram’sgstaining? 1. Itgisgusedgtogdifferentiategorganismsg
1. Crystalgviolet>iodine>safranin>alcohol accordinggtogtheirgstaininggreactiong a
2. Iodine>crystalg violet>alcohol>safranin ndgmorphology
3. Crystalgviolet>iodine>alcohol>safranin 2. Itgisgangexamplegofgagsimplegstain
4. Iodine>alcohol>crystal g violet>safranin 3. Gramgpositivegorganismsgaregvioletgin
3. Whichg amongg theg followingg isg notg true gcolor
g aboutgagbacterialgstain? 4. Gramgvariablegrefersgtogagconditiong
a. Itgenhancesgthegclaritygofgangorganis wheregingbacterialgcellsgappeargasgeit
mgbygincreasinggthegrefractivegindex hergpinkgorgviolet
b. Itgcolorsgspecialgstructuregofgagbacteri 8. Ag50-
a yeargoldgpatientgcamegingyourgclinic,gupong
c. Itgaidsgingthegvisualizationgofgorganis observation,ghisgmolargtoothgappearsgtogb
mgforgeasiergcounting egcolorgblack,gthegpatientgisgcomplainingga
d. Togethergwithgproteingandgmoisture, boutgseveregpaingfromgthegteethgmovinggt
gtheygaidgingtheggrowthgofgagbacteria oghisgskull.gAsgagdentistgyougdidgnotgperfor
lgcell medgangextractiongbecauseghegmadegment
4. Whichgamonggthegfollowinggisgtruegaboutgf ionedgthatghegisgsufferinggfromgagbloodgdis
ungi? ordergknowngasgThrombocytopenia,gagcond
a. Itgcangbegagyeastgandgmoldgatgcertai itiongwhereginghisgplateletsg(bloodgcells)gar
ngtemperatureghencegthegnamegdim egveryglowgandgcangnotgproperlygclotgango
orphism pengwound.gYougrequestedgforgagmicrobiol
1. Theygappeargasgmushroomgundergthe ogygstudygtogknowgthegcausegofgtheginfecti
gmicroscope on,gupongpresentinggthegresult,gitgshowedg
2. Theygalwaysgcauseginfection Gramgpositivegcoccigingchains.gWhichgamon
3. Theygdividegbygmeansgofgbudding,gw ggthegfollowinggcharacteristicgwillgleadgyou
hichginvolvesgthegfertilizationgofgange gtogthegconclusiongthatgthegorganismgisgStr
gggcellgfromgagmothergfungus eptococcusgmutans?
5. Whichgamonggthegfollowinggisgtruegaboutg 1. Thegorganismgshouldghavegaggreenish
angimmunoglobulin? gcolorgaroundgitgwhenginoculatedginga
1. Itgisgbasicallygagprotein gbloodgagargplate
2. Itg stimulatesg theg immuneg systemg t 2. ItgshouldgbegresistantgtogNovobiocin
ogproducegantibodygagainstgangantige 3. ItgshouldgbegsusceptiblegtogErythromy
n cin
3. Itg containsg ag Fabg regiong whichg serv 4. Itgshouldgbegcoagulasegpositive
esgasgthegbasisgforgantibodygattachm
ent
4. Itgisgproducesgingthegliver
“Whateverg youg do,g workg atg itg withg allg yourg heart,g asg workingg forg theg Lord,g notg forg m
en.”gColossiansg3:23
,2 MICROBIOLOGYgANDgPARASITOLOGY
9. Whichg amongg theg followingg bacteriag i 16. Thegfollowinggrefersgtogthegnaturalgdefens
sgarrangedgingthisgtetrad? egmechanismgofgthegurinarygtractgexceptg
1. Staphylococcus .
2. Veilonella a. Lactobacillusg acidophilus
3. Gafknia b. Menstrualgcyclegofgagfemale
4. Neiserria c. Mucosalgsurfacegofgthegbladder
10. Whichg amongg theg followingg showsg th d. gPresenceg ofg normalg florag suchg as
egpropergwaygofgwritinggagbacterialgname? Staphylococcusg saprophyticus
1. Staphylococcusg Aureus 17. Whichg amongg theg followingg organismsg
2. Staphylococcusg Aureus causesgVincent’sgdisease?
3. Staphylococcusg aureus a. Fusiformg bacteria
4. Staphylococcusg aureus b. Fusibacterium
11. Whichg amongg theg followingg refersg tog th c. Ruthia
egcorrectgordergofgGram’sgstaining? d. Streptococcusg mutans
1. Crystalgviolet>iodine>safranin>alcohol 18. Whichgamonggthegfollowinggstatementsgbe
2. Iodine>crystalg violet>alcohol>safranin stgdescribesghowgagbacterialgcellgcausesgm
3. Crystalgviolet>iodine>alcohol>safranin eningitis?
4. Iodine>alcohol>crystal g violet>safranin a. Theginhibitiongofgphagocytosis
12. Whichgamonggtheg followingg organismsg does b. ThegbreakagegofgthegBBB
notgneedgoxygen? c. Theglysisgofgthegredgbloodgcells
1. Veilonella d. Theg persong ingestsg theg braing ofg a
2. Staphylococcus nginfectedgpig
3. Legionella 19. Ang infectiong ofg theg bloodg dueg tog th
4. Pseudomonas egpresencegofgbacteriagisgknowngasg .
13. Whichgamonggthegfollowinggisgtruegaboutg a. Bacteremia
angimmunoglobulin? b. Septicemia
1. ItgisgdirectlygproducedgbygagBgcell c. BI
2. Itgisgconstantlygatgagregulargrate,gwith d. VBI
gorgwithoutgangantigen 20. Whichgamonggthegfollowinggvirusesgisgnotg
3. Theregaregsomegcasesgingwhichgangan agDNAgvirus?
tibodygisgdirectlyginjectedgingangindivi a. Parvovirus
dual b. Papillomag virus
4. BreastgmilkgisgrichgingIgG c. Picornagvirus
14. Theg infectiong ofg theg sking refersg tog the d. Hepadnag virus
g inflammationg ofg ag hairg follicleg isg know 21. Whichgamonggthegfollowinggindividualsgwill
ng as gmostglikelygdevelopgmeningitisgfromgStrep
. tococcusgagalactiae?
a. Cellulitis a. Ag1gweekgoldginfant
b. Folliculitis b. Agkinderg2gpupil
c. Curbuncle c. Agconstructiongworker
d. Skingulcer d. Agseniorgcitizen
15. Theg inflammationg ofg theg gumsg isg knowng 22. Whichg amongg theg followingg diseasesg will
as gmostglikelygcausegcellulitis?
. a. DiabetesgmellitusgtypegII
a. Gummitis b. Diabetesg insipidus
b. Gingivitis c. DiabetesgmellitusgtypegI
c. Ulcer d. Burn
d. Vincent’sg disease
“Callg tog Me,g andg Ig willg answerg you,g andg showg youg greatg andg mightyg things,g whichg youg dog
notgknow”
Jeremiahg 33:3
, MICROBIOLOGYg ANDg PARASITOLOGYg ANDg PARASITOLOGY 3
b. Trichurisg trichiura
23. Whichgamonggthegfollowinggisgtruegaboutg
c. Entamoebag histolitica
pepticgulcer?
d. Platyhelminthes
a. Thisgisgduegtogagbacterialginfectiongk
nowngasgHelicobactergpylori
b. Thisgisgagconditiongduegtogthegdrilling
gmechanismgofgitsgcausativegagent
c. Thisgconditiongisgduegtogthegexcessga
mountgofgHClgproducedgbygthegstom
ach
d. Itgisgcausedgbyghookworms
24. Oralgthrushgisgduegtogwhatgmicroorganism?
a. Candida
b. Streptoccus
c. Staphylococcus
d. Aspergillus
25. Thegendgproductgofgagmicroorganismgwhen
g itgutilizesgagcarbohydrategmaterialgfromgt
hegoralgcavitygofgangindividualgisgg g .
a. Fructose
b. Citricgacid
c. Fluorine
d. Botulinum
26. Theg g lockingg g ofg g theg g jawg g ing g casesg
g of
Clostridiumgbotulinumgisgduegtog .
a. Theghyperconstrictiongofgthegmuscles
gduegtogthegreleasegofgGABA
b. Thegpoorgconstrictiongofgthegmuscles
gbecausegthegorganismgblocksgthegre
ceptorsgforgAcetylgcholinegA
c. Thegbindinggofgthegmaxillagandgtheg
mandible
d. Theghypergsecretiongofgsaliva
27. Whichgamonggthegfollowinggisgtrueg regardi
nggPlatyhelminths
I. Dorsoventrallyg flat
II. Allg ofg themg areg leafg i
n
shape
III. Thereg isg nog digestiveg syste
m
IV. Presence of
angadhesivegsystem
a. I,gIII
b. I,gII,gIV
c. I,gIII,IV
d. NonegofgthegAbove
28. Phoresisgisgagsymbioticgrelationshipgwhereg
thegorganismgisgnotgphysiologically
dependentgtogtheghost.gWhichgamongg
thegfollowinggisgangexamplegofgagphor
ont?
a. Ascarisglumbricoides
“Whateverg youg do,g workg atg itg withg allg yourg heart,g asg workingg forg theg Lord,g notg forg m
en.”gColossiansg3:23
, 29. Thisg isg ag vesicularg lesiong ing theg sking
withg aghoney-coloredgcrust
a. Erysipelas
b. Impetigo
c. Cellulitis
d. Skingulcer
30. Whichgamonggthegfollowinggisgtruegabo
utgagcapsulatedgorganism?
a. Theygusuallyghemolyzegbloodgco
mpletely
b. Thegcapsulegpresentgcausesgtheg
bacteriagtogmigrategfromgonegpla
cegtoganother
c. Itgcausesgthegorganismgtoginhibitg
thegphagocyticgactiongofgthegwhit
egbloodgcells
d. Itgmakesgthemgeasilygpenetrategi
ntogtheghostgcell
31. Whichgamonggthegfollowinggstatementg
properlygshowsgagphoreticgtypegofgsym
bioticgrelationship?
a. Lactobacillusgacidophilusgisgagnor
malgfloragingthegvagina
b. Entamoebaghistolyiticagdoesgnotg
maturegnorgdevelopginsidegthegst
omachgofgangindividual
c. Ascarisglumbricoidesgcreatinggagb
olusgingthegintestinesgduegtogcop
ulation
d. Enterobiusgvermicularisgcausesgdi
arrhea
32. Thegcausativegagentgofgosmoticgdiarrhe
agisgknowngasgg g .
a. Giardiaglamblia
b. Campylobacterg jejuni
c. Ascariasis
d. Hookworm
33. Vaccination against Diphtheria andgPertussisgwasgintroducedgbyg .
a. Theodoreg Schwann
b. EmilegVongBehring
c. PaulgEhrlich
d. RobertgKoch
34. Prophylaxis against small pox
wasgintroducedgbyg
.
a. PaulgEhrlich
b. EmilgVongBehrning
c. EdwardgJenner
d. RichardgPetri
“Callg tog Me,g andg Ig willg answerg you,g andg showg youg greatg andg mightyg things,g whichg youg dog
notgknow”
Jeremiahg 33:3
