MICROBIOLOGYp ANDp PARASITOLOGYp ANDp PARASITOLOGY 1
1. Whichpamongpthepfollowingpstatementsp do 6. WhichpamongpthepfollowingpisptruepaboutpG
espnotpindicateptheppracticalpusepofpmicrobi ram’spstaining?
ologypinpthepfieldpofpdentistry? 1. Itpstainspapspecialporganellepofpthepcellp
a. Itpgivespanpideaponphowptopproperlypst intoptwopcolors
erilizepthepdifferentpequipmentpinp the 2. Itpispapvitalpstain
pclinic 3. Asidepfrompusingpapdropperpwhenpstai
b. Itppreventspthepdevelopmentpofpap pos ning,pyoupcanpsimplypsubmergepthepen
t-surgicalpinfection tirepgroupspofpslidespallpatpthepsamepti
c. Itpnarrowspthepchoicespofporganismspt mepforpbatchpstaining
hatpcanppossiblypcausepanpinfection 4. Itpcontainspapmordantpthatpispusedptop
d. Itpprovidespapdetailedpideaponphowptop enhancepthepstainingpofpapbacterialpcel
properlypsuturepappost- l
extractionpwound 7. Whichpamongpthepfollowingpispnotptruep abo
2. Whichpamongpthepfollowingprefersptopthepco utpGram’spstain?
rrectporderpofpGram’spstaining? 1. Itpispusedptopdifferentiateporganismspa
1. Crystalpviolet>iodine>safranin>alcohol ccordingptoptheirpstainingpreactionp an
2. Iodine>crystalp violet>alcohol>safranin dpmorphology
3. Crystalpviolet>iodine>alcohol>safranin 2. Itpispanpexamplepofpapsimplepstain
4. Iodine>alcohol>crystal p violet>safranin 3. Gramppositiveporganismsparepvioletpinp
3. Whichp amongp thep followingp isp notp truep color
aboutpapbacterialpstain? 4. Grampvariableprefersptopapconditionpw
a. Itpenhancespthepclaritypofpanporganism herepinpbacterialpcellspappearpaspeither
pbypincreasingptheprefractivepindex ppinkporpviolet
b. Itpcolorspspecialpstructurepofpapbacteria 8. Ap50-
c. Itpaidspinpthepvisualizationpofporganis yearpoldppatientpcamepinpyourpclinic,puponpo
mpforpeasierpcounting bservation,phispmolarptoothpappearsptopbepc
d. Togetherpwithpproteinpandpmoisture,p olorpblack,ptheppatientpispcomplainingpabout
theypaidpinpthepgrowthpofpapbacterialpc psevereppainpfrompthepteethpmovingptophisps
ell kull.pAspapdentistpyoupdidpnotpperformedpanp
4. Whichpamongpthepfollowingpisptruepaboutpfu extractionpbecausephepmadepmentionedptha
ngi? tphepispsufferingpfrompapbloodpdisorderpkno
a. Itpcanpbepapyeastpandpmoldpatpcertainp wnpaspThrombocytopenia,papconditionpwher
temperaturephencepthepnamepdimorp epinphispplateletsp(bloodpcells)parepveryplowp
hism andpcanpnotpproperlypclotpanpopenpwound.p
1. Theypappearpaspmushroompunderpthep Youprequestedpforpapmicrobiologypstudyptop
microscope knowpthepcausepofpthepinfection,puponppres
2. Theypalwayspcausepinfection entingpthepresult,pitpshowedpGramppositivepc
3. Theypdividepbypmeanspofpbudding,pwhi occipinpchains.pWhichpamongpthepfollowingpc
chpinvolvespthepfertilizationpofpanpeggp haracteristicpwillpleadpyouptopthepconclusion
cellpfrompapmotherpfungus pthatptheporganismpispStreptococcuspmutans
5. Whichpamongpthepfollowingpisptruepaboutpa ?
npimmunoglobulin? 1. Theporganismpshouldphavepapgreenishp
1. Itpispbasicallypapprotein colorparoundpitpwhenpinoculatedpinpap
2. Itp stimulatesp thep immunep systemp to bloodpagarpplate
pproducepantibodypagainstpanpantigen 2. ItpshouldpbepresistantptopNovobiocin
3. Itp containsp ap Fabp regionp whichp serve 3. ItpshouldpbepsusceptibleptopErythromyc
spaspthepbasispforpantibodypattachmen in
t 4. Itpshouldpbepcoagulaseppositive
4. Itpispproducespinpthepliver
“Whateverp youp do,p workp atp itp withp allp yourp heart,p asp workingp forp thep Lord,p notp forp men.”p
Colossiansp3:23
,2 MICROBIOLOGYpANDpPARASITOLOGY
9. Whichp amongp thep followingp bacteriap is 16. Thepfollowingprefersptopthepnaturalpdefensep
parrangedpinpthisptetrad? mechanismpofpthepurinaryptractpexceptp .
1. Staphylococcus a. Lactobacillusp acidophilus
2. Veilonella b. Menstrualpcyclepofpapfemale
3. Gafknia c. Mucosalpsurfacepofpthepbladder
4. Neiserria d. pPresencep ofp normalp florap suchp as
10. Whichp amongp thep followingp showsp the Staphylococcusp saprophyticus
pproperpwaypofpwritingpapbacterialpname? 17. Whichp amongp thep followingp organismsp
1. Staphylococcusp Aureus causespVincent’spdisease?
2. Staphylococcusp Aureus a. Fusiformp bacteria
3. Staphylococcusp aureus b. Fusibacterium
4. Staphylococcusp aureus c. Ruthia
11. Whichp amongp thep followingp refersp top the d. Streptococcusp mutans
pcorrectporderpofpGram’spstaining? 18. Whichpamongpthepfollowingpstatementspbes
1. Crystalpviolet>iodine>safranin>alcohol tpdescribesphowpapbacterialpcellpcausespmeni
2. Iodine>crystalp violet>alcohol>safranin ngitis?
3. Crystalpviolet>iodine>alcohol>safranin a. Thepinhibitionpofpphagocytosis
4. Iodine>alcohol>crystal p violet>safranin b. ThepbreakagepofpthepBBB
12. Whichpamongpthep followingporganismsp does c. Theplysispofpthepredpbloodpcells
notpneedpoxygen? d. Thep personp ingestsp thep brainp ofp an
1. Veilonella pinfectedppig
2. Staphylococcus 19. Anp infectionp ofp thep bloodp duep top thep
3. Legionella presencepofpbacteriapispknownpasp .
4. Pseudomonas a. Bacteremia
13. Whichpamongpthepfollowingpisptruepaboutpa b. Septicemia
npimmunoglobulin? c. BI
1. ItpispdirectlypproducedpbypapBpcell d. VBI
2. Itpispconstantlypatpapregularprate,pwithp 20. Whichpamongpthepfollowingpvirusespispnotpa
orpwithoutpanpantigen pDNApvirus?
3. Thereparepsomepcasespinpwhichpanpanti a. Parvovirus
bodypispdirectlypinjectedpinpanpindividu b. Papillomap virus
al c. Picornapvirus
4. BreastpmilkpisprichpinpIgG d. Hepadnap virus
14. Thep infectionp ofp thep skinp refersp top thep i 21. Whichpamongpthepfollowingpindividualspwillp
nflammationp ofp ap hairp folliclep isp knownp as mostplikelypdeveloppmeningitispfrompStrepto
. coccuspagalactiae?
a. Cellulitis a. Ap1pweekpoldpinfant
b. Folliculitis b. Apkinderp2ppupil
c. Curbuncle c. Apconstructionpworker
d. Skinpulcer d. Apseniorpcitizen
15. Thep inflammationp ofp thep gumsp isp knownp as 22. Whichp amongp thep followingp diseasesp willp
. mostplikelypcausepcellulitis?
a. Gummitis a. DiabetespmellitusptypepII
b. Gingivitis b. Diabetesp insipidus
c. Ulcer c. DiabetespmellitusptypepI
d. Vincent’sp disease d. Burn
“Callp top Me,p andp Ip willp answerp you,p andp showp youp greatp andp mightyp things,p whichp youp dop notpk
now”
Jeremiahp 33:3
, MICROBIOLOGYp ANDp PARASITOLOGYp ANDp PARASITOLOGY 3
23. Whichpamongpthepfollowingpisptruepaboutpp d. Platyhelminthes
epticpulcer?
a. Thispispdueptopapbacterialpinfectionpkn
ownpaspHelicobacterppylori
b. Thispispapconditionpdueptopthepdrillingp
mechanismpofpitspcausativepagent
c. Thispconditionpispdueptopthepexcesspa
mountpofpHClpproducedpbypthepstoma
ch
d. Itpispcausedpbyphookworms
24. Oralpthrushpispdueptopwhatpmicroorganism?
a. Candida
b. Streptoccus
c. Staphylococcus
d. Aspergillus
25. Thependpproductpofpapmicroorganismpwhen
p itputilizespapcarbohydratepmaterialpfrompth
eporalpcavitypofpanpindividualpispp p .
a. Fructose
b. Citricpacid
c. Fluorine
d. Botulinum
26. Thep p lockingp p ofp p thep p jawp p inp p casesp p o
f
Clostridiumpbotulinumpispdueptop .
a. Thephyperconstrictionpofpthepmusclesp
dueptopthepreleasepofpGABA
b. Theppoorpconstrictionpofpthepmusclesp
becauseptheporganismpblocksptheprece
ptorspforpAcetylpcholinepA
c. Thepbindingpofpthepmaxillapandpthepm
andible
d. Thephyperpsecretionpofpsaliva
27. Whichpamongpthepfollowingpisptruep regardi
ngpPlatyhelminths
I. Dorsoventrallyp flat
II. Allp ofp themp arep leafp in
shape
III. Therep isp nop digestivep system
IV. Presence of
anpadhesivepsystem
a. I,pIII
b. I,pII,pIV
c. I,pIII,IV
d. NonepofpthepAbove
28. Phoresispispapsymbioticprelationshippwherept
heporganismpispnotpphysiologically
dependentptopthephost.pWhichpamongpt
hepfollowingpispanpexamplepofpapphoron
t?
a. Ascarisplumbricoides
b. Trichurisp trichiura
c. Entamoebap histolitica
“Whateverp youp do,p workp atp itp withp allp yourp heart,p asp workingp forp thep Lord,p notp forp men.”p
Colossiansp3:23
, 29. Thisp isp ap vesicularp lesionp inp thep skinp w
ithp aphoney-coloredpcrust
a. Erysipelas
b. Impetigo
c. Cellulitis
d. Skinpulcer
30. Whichpamongpthepfollowingpisptruepabo
utpapcapsulatedporganism?
a. Theypusuallyphemolyzepbloodpcom
pletely
b. Thepcapsuleppresentpcausespthepb
acteriaptopmigratepfromponepplace
ptopanother
c. Itpcausesptheporganismptopinhibitpt
hepphagocyticpactionpofpthepwhite
pbloodpcells
d. Itpmakespthempeasilyppenetratepin
topthephostpcell
31. Whichpamongpthepfollowingpstatementp
properlypshowspapphoreticptypepofpsymb
ioticprelationship?
a. Lactobacilluspacidophiluspispapnor
malpflorapinpthepvagina
b. Entamoebaphistolyiticapdoespnotp
maturepnorpdeveloppinsidepthepst
omachpofpanpindividual
c. Ascarisplumbricoidespcreatingpapbo
luspinpthepintestinespdueptopcopula
tion
d. Enterobiuspvermicularispcausespdia
rrhea
32. Thepcausativepagentpofposmoticpdiarrhe
apispknownpaspp p .
a. Giardiaplamblia
b. Campylobacterp jejuni
c. Ascariasis
d. Hookworm
33. Vaccination against Diphtheria andpPertussispwaspintroducedpbyp .
a. Theodorep Schwann
b. EmilepVonpBehring
c. PaulpEhrlich
d. RobertpKoch
34. Prophylaxis against small pox
waspintroducedpbyp
.
a. PaulpEhrlich
b. EmilpVonpBehrning
c. EdwardpJenner
d. RichardpPetri
“Callp top Me,p andp Ip willp answerp you,p andp showp youp greatp andp mightyp things,p whichp youp dop notpk
now”
Jeremiahp 33:3
1. Whichpamongpthepfollowingpstatementsp do 6. WhichpamongpthepfollowingpisptruepaboutpG
espnotpindicateptheppracticalpusepofpmicrobi ram’spstaining?
ologypinpthepfieldpofpdentistry? 1. Itpstainspapspecialporganellepofpthepcellp
a. Itpgivespanpideaponphowptopproperlypst intoptwopcolors
erilizepthepdifferentpequipmentpinp the 2. Itpispapvitalpstain
pclinic 3. Asidepfrompusingpapdropperpwhenpstai
b. Itppreventspthepdevelopmentpofpap pos ning,pyoupcanpsimplypsubmergepthepen
t-surgicalpinfection tirepgroupspofpslidespallpatpthepsamepti
c. Itpnarrowspthepchoicespofporganismspt mepforpbatchpstaining
hatpcanppossiblypcausepanpinfection 4. Itpcontainspapmordantpthatpispusedptop
d. Itpprovidespapdetailedpideaponphowptop enhancepthepstainingpofpapbacterialpcel
properlypsuturepappost- l
extractionpwound 7. Whichpamongpthepfollowingpispnotptruep abo
2. Whichpamongpthepfollowingprefersptopthepco utpGram’spstain?
rrectporderpofpGram’spstaining? 1. Itpispusedptopdifferentiateporganismspa
1. Crystalpviolet>iodine>safranin>alcohol ccordingptoptheirpstainingpreactionp an
2. Iodine>crystalp violet>alcohol>safranin dpmorphology
3. Crystalpviolet>iodine>alcohol>safranin 2. Itpispanpexamplepofpapsimplepstain
4. Iodine>alcohol>crystal p violet>safranin 3. Gramppositiveporganismsparepvioletpinp
3. Whichp amongp thep followingp isp notp truep color
aboutpapbacterialpstain? 4. Grampvariableprefersptopapconditionpw
a. Itpenhancespthepclaritypofpanporganism herepinpbacterialpcellspappearpaspeither
pbypincreasingptheprefractivepindex ppinkporpviolet
b. Itpcolorspspecialpstructurepofpapbacteria 8. Ap50-
c. Itpaidspinpthepvisualizationpofporganis yearpoldppatientpcamepinpyourpclinic,puponpo
mpforpeasierpcounting bservation,phispmolarptoothpappearsptopbepc
d. Togetherpwithpproteinpandpmoisture,p olorpblack,ptheppatientpispcomplainingpabout
theypaidpinpthepgrowthpofpapbacterialpc psevereppainpfrompthepteethpmovingptophisps
ell kull.pAspapdentistpyoupdidpnotpperformedpanp
4. Whichpamongpthepfollowingpisptruepaboutpfu extractionpbecausephepmadepmentionedptha
ngi? tphepispsufferingpfrompapbloodpdisorderpkno
a. Itpcanpbepapyeastpandpmoldpatpcertainp wnpaspThrombocytopenia,papconditionpwher
temperaturephencepthepnamepdimorp epinphispplateletsp(bloodpcells)parepveryplowp
hism andpcanpnotpproperlypclotpanpopenpwound.p
1. Theypappearpaspmushroompunderpthep Youprequestedpforpapmicrobiologypstudyptop
microscope knowpthepcausepofpthepinfection,puponppres
2. Theypalwayspcausepinfection entingpthepresult,pitpshowedpGramppositivepc
3. Theypdividepbypmeanspofpbudding,pwhi occipinpchains.pWhichpamongpthepfollowingpc
chpinvolvespthepfertilizationpofpanpeggp haracteristicpwillpleadpyouptopthepconclusion
cellpfrompapmotherpfungus pthatptheporganismpispStreptococcuspmutans
5. Whichpamongpthepfollowingpisptruepaboutpa ?
npimmunoglobulin? 1. Theporganismpshouldphavepapgreenishp
1. Itpispbasicallypapprotein colorparoundpitpwhenpinoculatedpinpap
2. Itp stimulatesp thep immunep systemp to bloodpagarpplate
pproducepantibodypagainstpanpantigen 2. ItpshouldpbepresistantptopNovobiocin
3. Itp containsp ap Fabp regionp whichp serve 3. ItpshouldpbepsusceptibleptopErythromyc
spaspthepbasispforpantibodypattachmen in
t 4. Itpshouldpbepcoagulaseppositive
4. Itpispproducespinpthepliver
“Whateverp youp do,p workp atp itp withp allp yourp heart,p asp workingp forp thep Lord,p notp forp men.”p
Colossiansp3:23
,2 MICROBIOLOGYpANDpPARASITOLOGY
9. Whichp amongp thep followingp bacteriap is 16. Thepfollowingprefersptopthepnaturalpdefensep
parrangedpinpthisptetrad? mechanismpofpthepurinaryptractpexceptp .
1. Staphylococcus a. Lactobacillusp acidophilus
2. Veilonella b. Menstrualpcyclepofpapfemale
3. Gafknia c. Mucosalpsurfacepofpthepbladder
4. Neiserria d. pPresencep ofp normalp florap suchp as
10. Whichp amongp thep followingp showsp the Staphylococcusp saprophyticus
pproperpwaypofpwritingpapbacterialpname? 17. Whichp amongp thep followingp organismsp
1. Staphylococcusp Aureus causespVincent’spdisease?
2. Staphylococcusp Aureus a. Fusiformp bacteria
3. Staphylococcusp aureus b. Fusibacterium
4. Staphylococcusp aureus c. Ruthia
11. Whichp amongp thep followingp refersp top the d. Streptococcusp mutans
pcorrectporderpofpGram’spstaining? 18. Whichpamongpthepfollowingpstatementspbes
1. Crystalpviolet>iodine>safranin>alcohol tpdescribesphowpapbacterialpcellpcausespmeni
2. Iodine>crystalp violet>alcohol>safranin ngitis?
3. Crystalpviolet>iodine>alcohol>safranin a. Thepinhibitionpofpphagocytosis
4. Iodine>alcohol>crystal p violet>safranin b. ThepbreakagepofpthepBBB
12. Whichpamongpthep followingporganismsp does c. Theplysispofpthepredpbloodpcells
notpneedpoxygen? d. Thep personp ingestsp thep brainp ofp an
1. Veilonella pinfectedppig
2. Staphylococcus 19. Anp infectionp ofp thep bloodp duep top thep
3. Legionella presencepofpbacteriapispknownpasp .
4. Pseudomonas a. Bacteremia
13. Whichpamongpthepfollowingpisptruepaboutpa b. Septicemia
npimmunoglobulin? c. BI
1. ItpispdirectlypproducedpbypapBpcell d. VBI
2. Itpispconstantlypatpapregularprate,pwithp 20. Whichpamongpthepfollowingpvirusespispnotpa
orpwithoutpanpantigen pDNApvirus?
3. Thereparepsomepcasespinpwhichpanpanti a. Parvovirus
bodypispdirectlypinjectedpinpanpindividu b. Papillomap virus
al c. Picornapvirus
4. BreastpmilkpisprichpinpIgG d. Hepadnap virus
14. Thep infectionp ofp thep skinp refersp top thep i 21. Whichpamongpthepfollowingpindividualspwillp
nflammationp ofp ap hairp folliclep isp knownp as mostplikelypdeveloppmeningitispfrompStrepto
. coccuspagalactiae?
a. Cellulitis a. Ap1pweekpoldpinfant
b. Folliculitis b. Apkinderp2ppupil
c. Curbuncle c. Apconstructionpworker
d. Skinpulcer d. Apseniorpcitizen
15. Thep inflammationp ofp thep gumsp isp knownp as 22. Whichp amongp thep followingp diseasesp willp
. mostplikelypcausepcellulitis?
a. Gummitis a. DiabetespmellitusptypepII
b. Gingivitis b. Diabetesp insipidus
c. Ulcer c. DiabetespmellitusptypepI
d. Vincent’sp disease d. Burn
“Callp top Me,p andp Ip willp answerp you,p andp showp youp greatp andp mightyp things,p whichp youp dop notpk
now”
Jeremiahp 33:3
, MICROBIOLOGYp ANDp PARASITOLOGYp ANDp PARASITOLOGY 3
23. Whichpamongpthepfollowingpisptruepaboutpp d. Platyhelminthes
epticpulcer?
a. Thispispdueptopapbacterialpinfectionpkn
ownpaspHelicobacterppylori
b. Thispispapconditionpdueptopthepdrillingp
mechanismpofpitspcausativepagent
c. Thispconditionpispdueptopthepexcesspa
mountpofpHClpproducedpbypthepstoma
ch
d. Itpispcausedpbyphookworms
24. Oralpthrushpispdueptopwhatpmicroorganism?
a. Candida
b. Streptoccus
c. Staphylococcus
d. Aspergillus
25. Thependpproductpofpapmicroorganismpwhen
p itputilizespapcarbohydratepmaterialpfrompth
eporalpcavitypofpanpindividualpispp p .
a. Fructose
b. Citricpacid
c. Fluorine
d. Botulinum
26. Thep p lockingp p ofp p thep p jawp p inp p casesp p o
f
Clostridiumpbotulinumpispdueptop .
a. Thephyperconstrictionpofpthepmusclesp
dueptopthepreleasepofpGABA
b. Theppoorpconstrictionpofpthepmusclesp
becauseptheporganismpblocksptheprece
ptorspforpAcetylpcholinepA
c. Thepbindingpofpthepmaxillapandpthepm
andible
d. Thephyperpsecretionpofpsaliva
27. Whichpamongpthepfollowingpisptruep regardi
ngpPlatyhelminths
I. Dorsoventrallyp flat
II. Allp ofp themp arep leafp in
shape
III. Therep isp nop digestivep system
IV. Presence of
anpadhesivepsystem
a. I,pIII
b. I,pII,pIV
c. I,pIII,IV
d. NonepofpthepAbove
28. Phoresispispapsymbioticprelationshippwherept
heporganismpispnotpphysiologically
dependentptopthephost.pWhichpamongpt
hepfollowingpispanpexamplepofpapphoron
t?
a. Ascarisplumbricoides
b. Trichurisp trichiura
c. Entamoebap histolitica
“Whateverp youp do,p workp atp itp withp allp yourp heart,p asp workingp forp thep Lord,p notp forp men.”p
Colossiansp3:23
, 29. Thisp isp ap vesicularp lesionp inp thep skinp w
ithp aphoney-coloredpcrust
a. Erysipelas
b. Impetigo
c. Cellulitis
d. Skinpulcer
30. Whichpamongpthepfollowingpisptruepabo
utpapcapsulatedporganism?
a. Theypusuallyphemolyzepbloodpcom
pletely
b. Thepcapsuleppresentpcausespthepb
acteriaptopmigratepfromponepplace
ptopanother
c. Itpcausesptheporganismptopinhibitpt
hepphagocyticpactionpofpthepwhite
pbloodpcells
d. Itpmakespthempeasilyppenetratepin
topthephostpcell
31. Whichpamongpthepfollowingpstatementp
properlypshowspapphoreticptypepofpsymb
ioticprelationship?
a. Lactobacilluspacidophiluspispapnor
malpflorapinpthepvagina
b. Entamoebaphistolyiticapdoespnotp
maturepnorpdeveloppinsidepthepst
omachpofpanpindividual
c. Ascarisplumbricoidespcreatingpapbo
luspinpthepintestinespdueptopcopula
tion
d. Enterobiuspvermicularispcausespdia
rrhea
32. Thepcausativepagentpofposmoticpdiarrhe
apispknownpaspp p .
a. Giardiaplamblia
b. Campylobacterp jejuni
c. Ascariasis
d. Hookworm
33. Vaccination against Diphtheria andpPertussispwaspintroducedpbyp .
a. Theodorep Schwann
b. EmilepVonpBehring
c. PaulpEhrlich
d. RobertpKoch
34. Prophylaxis against small pox
waspintroducedpbyp
.
a. PaulpEhrlich
b. EmilpVonpBehrning
c. EdwardpJenner
d. RichardpPetri
“Callp top Me,p andp Ip willp answerp you,p andp showp youp greatp andp mightyp things,p whichp youp dop notpk
now”
Jeremiahp 33:3
