Test Bank Understanding Pathophysiology 7th Edition
ChapterK01:KCellularKBiology
Huether & McCance: Understanding Pathophysiology, 7th Edition
MULTIPLEKCHOICES
1.
AKstudentKisKobservingKaKcellKunderKtheKmicroscope.KItKisKobserved toKhaveKsupercoiledKD
P
NA wiKthKhistones.KWhichKofKtheKfollowingKwouldKalsoKbeKobservedKbyKtheKstudent?
a. AKsingleKcircularKchromosome
b. AKnucleus
c. Free-floatingKnuclearKmaterial
d. NoKorganelles
ANS:KB
TheKcellKdescribedKisKaKeukaryoticKcell,KsoKitKhasKhistonesKandKaKsupercoiledKDNAKwithin its
P
nuKcleus;Kthus,KtheKnucleusKshouldKbeKobserved.KAKsingleKcircularKchromosomeKcalledKaKpro
karyKoteKcontainsKfree-floatingKnuclearKmaterialKbutKhasKnoKorganelles.
REF:Kp.K2
2.
AKnurseKisKinstructingKtheKstaffKaboutKcellularKfunctions.KWhichKcellularKfunctionKisKtheKnurs
eK
deKscribingKwhenKanKisolatedKcellKabsorbsKoxygenKandKusesKitKtoKtransformKnutrientsKtoKener
g y?
a. MetabolicKabsorption
b. Communication
c. Secretion
d. Respiration
TestKBank PageK1
, Test Bank Understanding Pathophysiology 7th Edition
ANS:KD
TheKcell’sKabilityKtoKabsorbKoxygenKisKreferredKtoKasKrespirationKwhileKitsKcommunicationKability
inKvolvesKmaintenanceKofKa steadyKdynamicKstate,KmetabolicKabsorption providesKnutrition,KandK
P P
secrKetionKallowsKforKtheKsynthesizing ofKnewKsubstances.
P
REF:Kp.K2
3.
AKeukaryoticKcellKisKundergoingKDNAKreplication.KInKwhichKregionKofKtheKcellKwouldKmos
tKof thKeKgeneticKinformation beKcontained? a. Mitochondria
P
b. Ribosome
c. Nucleolus
d. NucleusKCytoplasm
ANS:KC
TheKregionKofKtheKcellKthat containsKgeneticKmaterial,KincludingKaKlargeKamountKofKribonucleica
P
cKid,Kmost ofKtheKDNA,Kand DNA-
P P
bindingKproteins,KisKtheKnucleolus,KwhichKisKlocatedKwithintheKcell’sKnucleus.KMitochondriaKis
aKssociatedKwithKcellularKrespiration,KwhileKribosomesKareKinvolvedKwithKproteinKmanufactur
K
ing.KCytoplasm isKaKfluidKfillingKthatKisKaKcomponentKofKtheKcell.
P
REF:Kp.K2
4. WhichKofKtheKfollowing canKremoveKproteinsKattachedKtoKtheKcell’sKbilayerKbyKdissolvingKthe
P
laKyerKitself?
a. PeripheralKmembraneKproteins
b. IntegralKmembraneKproteins
c. Glycoproteins
d. CellKadhesionKmolecules
ANS:KB
ProteinsKdirectlyKattached toKtheKmembraneKbilayerKcanKbeKremoved byKtheKactionKofKintegral
P P
meKmbraneKproteinsKthatKdissolveKtheKbilayer.KPeripheralKmembraneKproteinsKresideKatKtheKsu
TestKBank PageK2
, Test Bank Understanding Pathophysiology 7th Edition
rfaceKwhileKcellKadhesionKmoleculesKareKonKtheKoutsideKofKtheKmembrane.KGlycoproteinKmark
sKcellsKaKndKdoesKnotKfloat.
REF:Kp.K7
5. WhichKofKtheKfollowingKcanKbind toKplasmaKmembraneKreceptors?
P
a. Oxygen
b. Ribosomes
c. AmphipathicKlipids
d. Ligands
ANS:KD
LigandsKareKtheKonlyKspecificKmoleculesKthatKcanKbindKwithKreceptorsKon theKcellKmembrane.
P
REF:Kp.K9
6. AKnurseKis reviewingKaKreportKfromKaKpatientKwithKmetastaticKcancer.KWhatKalternation inKthe
P P
exKtracellularKmatrixKwouldKsuNppUoRrtSthIeNdGiaTgnBo.siCs ofMmetastatic Kcancer?
P
a. Decreased fibronectin
P
b. IncreasedKcollagen
c. Decreased elastin
P
d. Increased glycoproteins
P
ANS:KA
OnlyKaKreducedKamountKofKfibronectinKisKfoundKinKsomeKtypesKofKcancerousKcells,Kallowing
thKemKtoKtravelKorKmetastasize.
REF:Kp.K10
7. WhichKformKofKcellKcommunicationKis usedKtoKrelateKtoKotherKcellsKinKdirectKphysicalKcontact?
P
a. CellKjunction
b. GapKjunction
c. Desmosome
d. Tight junction
P
TestKBank PageK3
, Test Bank Understanding Pathophysiology 7th Edition
ANS:KA
CellKjunctionsKholdKcellsKtogetherKandKpermitKmoleculesKtoKpassKfromKcellKtoKcell.
Gap junctionsKallowKforKcellularKcommunicationKbetweenKcells.KNeitherKdesmosomesKnorKtightjuK
P
nct ionsKareKassociatedKwithKcellularKcommunication.
REF:Kp.K11
8.
PancreaticKbetaKcellsKsecreteKinsulin,KwhichKinhibitsKsecretionKofKglucagonKfromKneighbori
ng alKphaKcells.KThisKactionKisKanKexampleKofKwhichKofKtheKfollowing signalingKtypes? a.
P
Paracrine
b. Autocrine
c. Neurohormonal
d. Hormonal
ANS:KA
ParacrineKsignalingKinvolvesKtheKreleaseKofKlocalKchemicalKmediatorsKthatKareKquicklyKtakenKup
,dKestroyed,KorKimmobilized,Kas inKtheKcaseKofKinsulinKandKtheKinhibitionKofKtheKsecretionKofKglu
P
cago
n.KNoneKofKtheKotherKoptionsKinvolveKsignalingKthatKisKassociatedKwithKaKlocalKchemicalmediato
rKlKikeKinsulin.
REF:Kp.K12
9. In cellularKmetabolism,KeachKenzymeKhasKaKhighKaffinityKforKa:
P
a. solute.
b. substrate.
c. receptor.
d. ribosome.
ANS:KB
Each enzymeKhasKaKhighKaffinityKforKaKsubstrate,KaKspecificKsubstanceKconvertedKtoKaKproductKoft
P
hKeKreaction.KCellularKmetabolismKisKnotKdependentKon anKattraction betweenKanKenzymeKand an
P P P
yKofKtheKremainingKoptions.
TestKBank PageK4
ChapterK01:KCellularKBiology
Huether & McCance: Understanding Pathophysiology, 7th Edition
MULTIPLEKCHOICES
1.
AKstudentKisKobservingKaKcellKunderKtheKmicroscope.KItKisKobserved toKhaveKsupercoiledKD
P
NA wiKthKhistones.KWhichKofKtheKfollowingKwouldKalsoKbeKobservedKbyKtheKstudent?
a. AKsingleKcircularKchromosome
b. AKnucleus
c. Free-floatingKnuclearKmaterial
d. NoKorganelles
ANS:KB
TheKcellKdescribedKisKaKeukaryoticKcell,KsoKitKhasKhistonesKandKaKsupercoiledKDNAKwithin its
P
nuKcleus;Kthus,KtheKnucleusKshouldKbeKobserved.KAKsingleKcircularKchromosomeKcalledKaKpro
karyKoteKcontainsKfree-floatingKnuclearKmaterialKbutKhasKnoKorganelles.
REF:Kp.K2
2.
AKnurseKisKinstructingKtheKstaffKaboutKcellularKfunctions.KWhichKcellularKfunctionKisKtheKnurs
eK
deKscribingKwhenKanKisolatedKcellKabsorbsKoxygenKandKusesKitKtoKtransformKnutrientsKtoKener
g y?
a. MetabolicKabsorption
b. Communication
c. Secretion
d. Respiration
TestKBank PageK1
, Test Bank Understanding Pathophysiology 7th Edition
ANS:KD
TheKcell’sKabilityKtoKabsorbKoxygenKisKreferredKtoKasKrespirationKwhileKitsKcommunicationKability
inKvolvesKmaintenanceKofKa steadyKdynamicKstate,KmetabolicKabsorption providesKnutrition,KandK
P P
secrKetionKallowsKforKtheKsynthesizing ofKnewKsubstances.
P
REF:Kp.K2
3.
AKeukaryoticKcellKisKundergoingKDNAKreplication.KInKwhichKregionKofKtheKcellKwouldKmos
tKof thKeKgeneticKinformation beKcontained? a. Mitochondria
P
b. Ribosome
c. Nucleolus
d. NucleusKCytoplasm
ANS:KC
TheKregionKofKtheKcellKthat containsKgeneticKmaterial,KincludingKaKlargeKamountKofKribonucleica
P
cKid,Kmost ofKtheKDNA,Kand DNA-
P P
bindingKproteins,KisKtheKnucleolus,KwhichKisKlocatedKwithintheKcell’sKnucleus.KMitochondriaKis
aKssociatedKwithKcellularKrespiration,KwhileKribosomesKareKinvolvedKwithKproteinKmanufactur
K
ing.KCytoplasm isKaKfluidKfillingKthatKisKaKcomponentKofKtheKcell.
P
REF:Kp.K2
4. WhichKofKtheKfollowing canKremoveKproteinsKattachedKtoKtheKcell’sKbilayerKbyKdissolvingKthe
P
laKyerKitself?
a. PeripheralKmembraneKproteins
b. IntegralKmembraneKproteins
c. Glycoproteins
d. CellKadhesionKmolecules
ANS:KB
ProteinsKdirectlyKattached toKtheKmembraneKbilayerKcanKbeKremoved byKtheKactionKofKintegral
P P
meKmbraneKproteinsKthatKdissolveKtheKbilayer.KPeripheralKmembraneKproteinsKresideKatKtheKsu
TestKBank PageK2
, Test Bank Understanding Pathophysiology 7th Edition
rfaceKwhileKcellKadhesionKmoleculesKareKonKtheKoutsideKofKtheKmembrane.KGlycoproteinKmark
sKcellsKaKndKdoesKnotKfloat.
REF:Kp.K7
5. WhichKofKtheKfollowingKcanKbind toKplasmaKmembraneKreceptors?
P
a. Oxygen
b. Ribosomes
c. AmphipathicKlipids
d. Ligands
ANS:KD
LigandsKareKtheKonlyKspecificKmoleculesKthatKcanKbindKwithKreceptorsKon theKcellKmembrane.
P
REF:Kp.K9
6. AKnurseKis reviewingKaKreportKfromKaKpatientKwithKmetastaticKcancer.KWhatKalternation inKthe
P P
exKtracellularKmatrixKwouldKsuNppUoRrtSthIeNdGiaTgnBo.siCs ofMmetastatic Kcancer?
P
a. Decreased fibronectin
P
b. IncreasedKcollagen
c. Decreased elastin
P
d. Increased glycoproteins
P
ANS:KA
OnlyKaKreducedKamountKofKfibronectinKisKfoundKinKsomeKtypesKofKcancerousKcells,Kallowing
thKemKtoKtravelKorKmetastasize.
REF:Kp.K10
7. WhichKformKofKcellKcommunicationKis usedKtoKrelateKtoKotherKcellsKinKdirectKphysicalKcontact?
P
a. CellKjunction
b. GapKjunction
c. Desmosome
d. Tight junction
P
TestKBank PageK3
, Test Bank Understanding Pathophysiology 7th Edition
ANS:KA
CellKjunctionsKholdKcellsKtogetherKandKpermitKmoleculesKtoKpassKfromKcellKtoKcell.
Gap junctionsKallowKforKcellularKcommunicationKbetweenKcells.KNeitherKdesmosomesKnorKtightjuK
P
nct ionsKareKassociatedKwithKcellularKcommunication.
REF:Kp.K11
8.
PancreaticKbetaKcellsKsecreteKinsulin,KwhichKinhibitsKsecretionKofKglucagonKfromKneighbori
ng alKphaKcells.KThisKactionKisKanKexampleKofKwhichKofKtheKfollowing signalingKtypes? a.
P
Paracrine
b. Autocrine
c. Neurohormonal
d. Hormonal
ANS:KA
ParacrineKsignalingKinvolvesKtheKreleaseKofKlocalKchemicalKmediatorsKthatKareKquicklyKtakenKup
,dKestroyed,KorKimmobilized,Kas inKtheKcaseKofKinsulinKandKtheKinhibitionKofKtheKsecretionKofKglu
P
cago
n.KNoneKofKtheKotherKoptionsKinvolveKsignalingKthatKisKassociatedKwithKaKlocalKchemicalmediato
rKlKikeKinsulin.
REF:Kp.K12
9. In cellularKmetabolism,KeachKenzymeKhasKaKhighKaffinityKforKa:
P
a. solute.
b. substrate.
c. receptor.
d. ribosome.
ANS:KB
Each enzymeKhasKaKhighKaffinityKforKaKsubstrate,KaKspecificKsubstanceKconvertedKtoKaKproductKoft
P
hKeKreaction.KCellularKmetabolismKisKnotKdependentKon anKattraction betweenKanKenzymeKand an
P P P
yKofKtheKremainingKoptions.
TestKBank PageK4
