BerneAandALevyAPhysiologyA7thAEditionAKoeppen
,BerneAandALevyAPhysiologyA7thAEditionAKoeppen
Berne and Levy Physiology 8th Edition KoeppenTest Bank
Koeppen: Berne and Levy Physiology, 8th Edition
Chapter 01: Principles of Cell Function
A A A A A
Test Bank
A
Multiple Choice
A
TheAsubcellularAstructureAthatAdegradesAproteinsAisAcalledAthe:
TightAjunction
Mitochondria
Lysosome
PlasmaAmembrane
Ribosome
AANS:AC
AnAexperimentAisAdoneAtoAmeasureAtheAuptakeAofAanAaminoAacidAintoAaAcell.ATheAfolloAwing
AdataAareAobtained:
N
IfANa+AisAremovedAfromAtheAextracellularAbathingAsolution,AorAifAaAdrugAisAaddedAthatApreventAs
AtheAcellAfromAmakingAadenosineAtriphosphateA(ATP),AtheAuptakeAofAaminoAacidAintoAtheAcAellAi
sAmarkedlyAreduced.AAccordingAtoAthisAinformation,AwhichAofAtheAfollowingmechanismAsAisApr
obablyAresponsibleAforAtheAtransportAofAtheAaminoAacidAintoAtheAcell?
PassiveAdiffusionAthroughAtheAlipidAbilayer
Uniporter
TransportAATPase
Na+AAsymporter
Na+Aantiporter
AANS:AD
Ā Ā ̀Ā ȀĀ⸀Ā ᜀ Ā ᜀ
+
AmembraneApermeableAbyAonlyANa AseparatesAtwoAcompartmentsAcontainiA
ngANa2SO4,shownAasAfollows:
,BerneAandALevyAPhysiologyA7thAEditionAKoeppen
ElectrodesAareAplacedAinAbothAcompartments,AandAaAvoltageAisAappliedA(thatAofAcompartmentAA
AisAheldAatA0AmV).AWhatAvoltageAappliedAtoAcompartmentABAwouldAresultinAnoAnetAmoveAmentA
ofANa+AacrossAtheAmembraneAseparatingAtheAcompartments?
–60AmV
–30AmV
0AmV
D.A+30AmVAE.
+60Am
VAANS:AAE
NURS IN A G
4.AAATheArestingAmembraneApotentAial A Aof a AAcAeA
n w nw nw
lAl B.C
isAA–
85AmV.AATheAintracellularAandAextracellularAconcentrationsAofAseveralAionsAareAindicate
dAinAtheAfollowingAtable,AasAisAtheAcalculated
NernstAequilibriumApotentialA(Ei)AforAeachAofAtheseAions:
Ion Concentration Concentration Ei
Inside Cell nw Outside Cell nw
+
Na 12 mEq/L
nw 145 mEq/Lnw 66 mV
nw
K+ 150 mEq/L
nw 4 mEq/L
nw –96 mVnw
–
Cl 30 mEq/L
nw 105 mEq/Lnw –33 mVnw
Ca++ 0.0001 mmol/dLnw 1 mmol/dL
nw 122 mVnw
TheAmembraneAhasAchannelsAforANa+,AK+,ACl–
andACa++.ATheAconductanceAofAtheAmembraneAisAtheAgreatestAforAwhichAion?
Na+
K+
Cl–
Ca++
AANS
:
B
5.AAAAAcellAcontainsAtheAfollowingAmembraneAtransporters:
Na+AchannelK+Achanne
, lANa+,K+-ATPase
,BerneAandALevyAPhysiologyA7thAEditionAKoeppen
Berne and Levy Physiology 8th Edition KoeppenTest Bank
Koeppen: Berne and Levy Physiology, 8th Edition
Chapter 01: Principles of Cell Function
A A A A A
Test Bank
A
Multiple Choice
A
TheAsubcellularAstructureAthatAdegradesAproteinsAisAcalledAthe:
TightAjunction
Mitochondria
Lysosome
PlasmaAmembrane
Ribosome
AANS:AC
AnAexperimentAisAdoneAtoAmeasureAtheAuptakeAofAanAaminoAacidAintoAaAcell.ATheAfolloAwing
AdataAareAobtained:
N
IfANa+AisAremovedAfromAtheAextracellularAbathingAsolution,AorAifAaAdrugAisAaddedAthatApreventAs
AtheAcellAfromAmakingAadenosineAtriphosphateA(ATP),AtheAuptakeAofAaminoAacidAintoAtheAcAellAi
sAmarkedlyAreduced.AAccordingAtoAthisAinformation,AwhichAofAtheAfollowingmechanismAsAisApr
obablyAresponsibleAforAtheAtransportAofAtheAaminoAacidAintoAtheAcell?
PassiveAdiffusionAthroughAtheAlipidAbilayer
Uniporter
TransportAATPase
Na+AAsymporter
Na+Aantiporter
AANS:AD
Ā Ā ̀Ā ȀĀ⸀Ā ᜀ Ā ᜀ
+
AmembraneApermeableAbyAonlyANa AseparatesAtwoAcompartmentsAcontainiA
ngANa2SO4,shownAasAfollows:
,BerneAandALevyAPhysiologyA7thAEditionAKoeppen
ElectrodesAareAplacedAinAbothAcompartments,AandAaAvoltageAisAappliedA(thatAofAcompartmentAA
AisAheldAatA0AmV).AWhatAvoltageAappliedAtoAcompartmentABAwouldAresultinAnoAnetAmoveAmentA
ofANa+AacrossAtheAmembraneAseparatingAtheAcompartments?
–60AmV
–30AmV
0AmV
D.A+30AmVAE.
+60Am
VAANS:AAE
NURS IN A G
4.AAATheArestingAmembraneApotentAial A Aof a AAcAeA
n w nw nw
lAl B.C
isAA–
85AmV.AATheAintracellularAandAextracellularAconcentrationsAofAseveralAionsAareAindicate
dAinAtheAfollowingAtable,AasAisAtheAcalculated
NernstAequilibriumApotentialA(Ei)AforAeachAofAtheseAions:
Ion Concentration Concentration Ei
Inside Cell nw Outside Cell nw
+
Na 12 mEq/L
nw 145 mEq/Lnw 66 mV
nw
K+ 150 mEq/L
nw 4 mEq/L
nw –96 mVnw
–
Cl 30 mEq/L
nw 105 mEq/Lnw –33 mVnw
Ca++ 0.0001 mmol/dLnw 1 mmol/dL
nw 122 mVnw
TheAmembraneAhasAchannelsAforANa+,AK+,ACl–
andACa++.ATheAconductanceAofAtheAmembraneAisAtheAgreatestAforAwhichAion?
Na+
K+
Cl–
Ca++
AANS
:
B
5.AAAAAcellAcontainsAtheAfollowingAmembraneAtransporters:
Na+AchannelK+Achanne
, lANa+,K+-ATPase
