Test Bank Berne and Levy
Physiology 7th Edition
Koeppen-latest-2023-2024
, BerneryandryLevyryPhysiologyry7thryEditionryKoeppenTestryBankryKo
eppen:ryBerneryandryLevyryPhysiology,ry7thryEdition
Chapterry01:ryPrinciplesryofryCellryFunction
TestryBank
MultipleryChoice
1. Therysubcellularrystructurerythatrydegradesryproteinsryisrycalledrythe:
A. Tightryjunction
B. Mitochondria
C. Lysosome
D. Plasmarymembrane
E. Ribosome
ANS:r y C
2. Anryexperimentryisrydonerytorymeasurerytheryuptakeryofryanryaminoryacidryintoryarycell.ryTher
yfollowingrydataryareryobtained:
N
IfryNa+ryisryremovedryfromrytheryextracellularrybathingrysolution,ryorryifryarydrugryisryaddedrythatryp
reventsrytherycellryfromrymakingryadenosinerytriphosphatery(ATP),rytheryuptakeryofryaminoryacidry
intorytherycellryisrymarkedlyryreduced.ryAccordingrytorythisryinformation,rywhichryofrytheryfollowi
ngmechanismsryisryprobablyryresponsibleryforrytherytransportryofrytheryaminor y acidryintorytherycel
l?
A. Passiverydiffusionrythroughrytherylipidrybilayer
B. Uniporter
C. TransportryATPase
D. Na+rysymporter
E. Na+ryantiporte
rryANS:r y D
3. ArymembranerypermeablerybyryonlyryNa+ryseparatesrytworycompartmentsrycont
ainingryNa2SO4,shownryasryfollows:
, Electrodesryareryplacedryinrybothrycompartments,ryandryaryvoltageryisryappliedry(thatryofrycompart
mentryAryisryheldryatry0rymV).ryWhatryvoltageryappliedrytorycompartmentryBrywouldryresultryinrynor
+
ynetrymovementryofryNa ryacrossrytherymembraneryseparatingrytherycompartments?
A. –60rymV
B. –30rymV
C. 0rymV
D. +30rymV
E.
+60rym
VryANS:r y E
4. TheryrestingrymembranerypotentN ce l lGis ry–
ial ryoRfrya I
U rySryN
B85.C
mV.ryTheryintracellularryandryextracellularryconcentrationsryofryseveralryionsryareryindi
catedryinrytheryfollowingrytable,ryasryisrytherycalculated
Nernstryequilibriumrypotentialry(Ei)ryforryeachryofrytheseryions:
Ion Concentration Concentration Ei
InsideryCell OutsideryCell
Na+ 12rymEq/L 145rymEq/L 66rymV
K+ 150rymEq/L 4rymEq/L –96rymV
Cl– 30rymEq/L 105rymEq/L –33rymV
Ca++ 0.0001rymmol/dL 1rymmol/dL 122rymV
TherymembraneryhasrychannelsryforryNa+,ryK+,ryCl–
,ryandryCa++.ryTheryconductanceryofrytherymembraneryisrytherygreatestryforrywhichryio
n?
A. Na+
B. K+
C. Cl–
D. Ca++ryA
NS:ryB
5. Arycellrycontainsrytheryfollowingrymembranerytransporters:
Na+rychannelK+rychann
elryNa+,K+-ATPase
, Theryrestingrymembraneryvoltageryofrytherycellryisry–80rymV,ryandrytheryintracellularryand
Physiology 7th Edition
Koeppen-latest-2023-2024
, BerneryandryLevyryPhysiologyry7thryEditionryKoeppenTestryBankryKo
eppen:ryBerneryandryLevyryPhysiology,ry7thryEdition
Chapterry01:ryPrinciplesryofryCellryFunction
TestryBank
MultipleryChoice
1. Therysubcellularrystructurerythatrydegradesryproteinsryisrycalledrythe:
A. Tightryjunction
B. Mitochondria
C. Lysosome
D. Plasmarymembrane
E. Ribosome
ANS:r y C
2. Anryexperimentryisrydonerytorymeasurerytheryuptakeryofryanryaminoryacidryintoryarycell.ryTher
yfollowingrydataryareryobtained:
N
IfryNa+ryisryremovedryfromrytheryextracellularrybathingrysolution,ryorryifryarydrugryisryaddedrythatryp
reventsrytherycellryfromrymakingryadenosinerytriphosphatery(ATP),rytheryuptakeryofryaminoryacidry
intorytherycellryisrymarkedlyryreduced.ryAccordingrytorythisryinformation,rywhichryofrytheryfollowi
ngmechanismsryisryprobablyryresponsibleryforrytherytransportryofrytheryaminor y acidryintorytherycel
l?
A. Passiverydiffusionrythroughrytherylipidrybilayer
B. Uniporter
C. TransportryATPase
D. Na+rysymporter
E. Na+ryantiporte
rryANS:r y D
3. ArymembranerypermeablerybyryonlyryNa+ryseparatesrytworycompartmentsrycont
ainingryNa2SO4,shownryasryfollows:
, Electrodesryareryplacedryinrybothrycompartments,ryandryaryvoltageryisryappliedry(thatryofrycompart
mentryAryisryheldryatry0rymV).ryWhatryvoltageryappliedrytorycompartmentryBrywouldryresultryinrynor
+
ynetrymovementryofryNa ryacrossrytherymembraneryseparatingrytherycompartments?
A. –60rymV
B. –30rymV
C. 0rymV
D. +30rymV
E.
+60rym
VryANS:r y E
4. TheryrestingrymembranerypotentN ce l lGis ry–
ial ryoRfrya I
U rySryN
B85.C
mV.ryTheryintracellularryandryextracellularryconcentrationsryofryseveralryionsryareryindi
catedryinrytheryfollowingrytable,ryasryisrytherycalculated
Nernstryequilibriumrypotentialry(Ei)ryforryeachryofrytheseryions:
Ion Concentration Concentration Ei
InsideryCell OutsideryCell
Na+ 12rymEq/L 145rymEq/L 66rymV
K+ 150rymEq/L 4rymEq/L –96rymV
Cl– 30rymEq/L 105rymEq/L –33rymV
Ca++ 0.0001rymmol/dL 1rymmol/dL 122rymV
TherymembraneryhasrychannelsryforryNa+,ryK+,ryCl–
,ryandryCa++.ryTheryconductanceryofrytherymembraneryisrytherygreatestryforrywhichryio
n?
A. Na+
B. K+
C. Cl–
D. Ca++ryA
NS:ryB
5. Arycellrycontainsrytheryfollowingrymembranerytransporters:
Na+rychannelK+rychann
elryNa+,K+-ATPase
, Theryrestingrymembraneryvoltageryofrytherycellryisry–80rymV,ryandrytheryintracellularryand