TEST BANK ESSENTIALS OF ORAL
HISTOLOGY AND EMBRYOLOGY 5TH
EDITION CHIEGO
,EssentialsyOfyOralyHistologyyAndyEmbryologyy5theditionyChiego 2
Chaptery01:yDevelopmentyandyStructureyofyCellsyandyTissuesyChiego:yEssentialsyofyOralyHis
tologyyandyEmbryology,y5thyEdition
MULTIPLEyCHOICE
1. Mitochondriayproduceywhichychemicalyforyintracellularyenergy?
a. ADP
b. ATP
c. RNA
d. DNA
yANS:yB
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A MitochondriaygenerateyenergyythroughyATP,ynotyADP,yproduction.
B Correct.yMitochondriayproduceyenergyyviayATP.
C MitochondriaygenerateyenergyythroughyATP,ynotyRNA,yproduction.
D MitochondriaygenerateyenergyythroughyATP,ynotyDNA,yproduction
.yDIF: Recally REF:y pp.y2-3yOBJ:y1
2. Eachytissueyoriginatesyfromymesoderm,yEXCEPTyone.yWhichyisytheyEXCEPTION?
a. Bone
b. Liver
c. Blood
d. Muscle
yANS:yB
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A Boneytissueydevelopsyfromymesodermalycells.
B Correct.yLiverytissueyisyproducedybyyendodermalycells.
C Bloodydevelopsyfromymesodermalycells.
D Muscleytissueydevelopsyfromymesodermalycells.
,EssentialsyOfyOralyHistologyyAndyEmbryologyy5theditionyChiego 3
DIF: Recally REF:y y p.y6 OBJ:y3
3. Whichychemicalyisycalledytheysecondymessenger?
a. aDNA
b. mRNA
c. dGMP
d. cAMPyANS:yD
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A cAMPyisy theysecondy messenger;yaDNAyisy not.
B cAMPyisy they secondy messenger;y mRNAy isy not.
C cAMPyisytheysecondymessenger;ydGMPyisynot.
Dy Correct.y cAMPy transmitsy informationy toy they intracellulary organellesy whenyac
tivatedybyysurfaceyreceptorsyonytheyplasmaymembrane.
DIF: Recally REF:y y p.y3 OBJ:y3
4. Whichycellularycomponentyfacilitatesyproteinysynthesis?
a. Ribosomes
b. Lysosomes
c. Mitochondria
d. PlasmalemmayANS:yA
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A Correct.yRibosomesysynthesizeyprotein.
B Lysosomesyfacilitateytheybreakdownyofyintracellularyandyextracellularysubstances.
C Mitochondriaygenerateyenergy.
D Theyplasmalemmayprovidesyayprotectiveybarrieryandyregulatesytheytransportyo
fysubstancesytoyandyfromytheycell.
5. Whichyorganelleyproducesymicrotubules?
a. Nucleus
b. Centriole
c. Golgiyapparatus
d. EndoplasmicyreticulumyANS:yB
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A Centriolesygenerateymicrotubules;ytheynucleusydoesynot.
B Correct.yCentriolesyproduceymicrotubules.
C Centriolesygenerateymicrotubules;ytheyGolgiyapparatusydoesynot.
D Centriolesygenerateymicrotubules;ytheyendoplasmicyreticulumydoesynot
.yDIF: Recally REF:y p.y3 OBJ:y1
6. Whichyphaseyofytheycellycycleyisycharacterizedyasytheyinitialyrestingystage?
, EssentialsyOfyOralyHistologyyAndyEmbryologyy5theditionyChiego 4
a. Syphase
b. G1yphase
c. G2yphase
d. ProphaseyANS:yB
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A TheySyphaseyisycharacterizedyasytheystageyinywhichyDNAysynthesisyisycomplete.
B Correct.yTheyG1yphaseyisytheyinitialyrestingystage.
C TheyG2yphaseyisycharacterizedybyypost-DNAyduplication.
D Prophaseyisycharacterizedybyyfouryspecificystructuralychanges
.yDIF: Recally REF:y p.y4 OBJ:y1
7. Posttranslationalymodificationsytoyproteinsyproducedybyytheyroughyendoplasmicyreticulu
myare
accomplishedyby .
a. mitochondria
b. Golgiyapparatus
c. messengeryRNA
d. smoothyendoplasmicyreticulumyANS:yB
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A TheyGolgiyapparatusyisyresponsibleyforyposttranslationalyalterations;ymitochondri
ayareynot.
B Correct.yTheyGolgiyapparatusymakesyalterationsytoyproteinsyproducedybyyth
eyroughyendoplasmicyreticulum.
C TheyGolgiyapparatusyisyresponsibleyforyposttranslationalyalterations;ymRNAyi
synot.
D TheyGolgiyapparatusyisyresponsibleyforyposttranslationalyalterations;ytheysmoot
hyendoplasmicyreticulumyisynot.
DIF: Recally REF:y y p.y2 OBJ:y1
8. The providesyanyidealyenvironmentyforytheyimplantationyandygrowthyofytheyembryo.
a. ovary
b. uterineytube
c. myometrium
d. endometriumyANS:y
DyFeedback