Test Bank Berne and Levy Physiology 7th Edition Koeppen-latest-

Test Bank Berne and Levy Physiology 7th Edition Ko
m m m m m m m mm




eppen-latest-2025-2026

, Berne and Levy Physiology 7th Edition Koeppen Test Bank Koepp
m m m m m m m m m




en: Berne and Levy Physiology, 7th Edition
m m m m m m




Chapter 01: Principles of Cell FunctionTe
m m m m m


st Bank
m


Multiple Choice m




1. Themsubcellularmstructuremthatmdegradesmproteinsmismcalledmthe:

A. Tightmjunction
B. Mitochondria
C. Lysosome
D. Plasmammembrane
E. Ribosome
ANS:m C

2. Anmexperimentmismdonemtommeasuremthemuptakemofmanmaminomacidmintomamcell.mThemfollow
ingmdatamaremobtained:


N




IfmNa+mismremovedmfrommthemextracellularmbathingmsolution,mormifmamdrugmismaddedmthatmpreventsmt
hemcellmfrommmakingmadenosinemtriphosphatem(ATP),mthemuptakemofmaminomacidmintomthemcellmism
markedlymreduced.mAccordingmtomthisminformation,mwhichmofmthemfollowingmechanismsmismprob
ablymresponsiblemformthemtransportmofmthemaminom acidmintomthemcell?

A. Passivemdiffusionmthroughmthemlipidmbilayer
B. Uniporter
C. TransportmATPase
D. Na+msymporter
E. Na+mantiporte
rmANS:m D

3. AmmembranempermeablembymonlymNa+mseparatesmtwomcompartmentsmcontainin
gmNa2SO4,shownmasmfollows:

,Electrodesmaremplacedminmbothmcompartments,mandmamvoltagemismappliedm(thatmofmcompartmentmA
mismheldmatm0mmV).mWhatmvoltagemappliedmtomcompartmentmBmwouldmresultminmnomnetmmovementm


ofmNa+macrossmthemmembranemseparatingmthemcompartments?

A. –60mmV
B. –30mmV
C. 0mmV
D. +30mmV
E.
+60mm
VmANS:m E

4. ThemrestingmmembranempotentN ial moRfma I
ce l l is m–
85 mV.
UmSmN G
m Themintracellularmandmextracellularmconcentrationsmofmseveralmionsmaremindicated
B.C
minmthemfollowingmtable,masmismthemcalculated


Nernstmequilibriummpotentialm(Ei)mformeachmofmthesemions:

Ion Concentration Concentration Ei
InsidemCell OutsidemCell
Na+ 12mmEq/L 145mmEq/L 66mmV
K+ 150mmEq/L 4mmEq/L –96mmV
Cl– 30mmEq/L 105mmEq/L –33mmV
Ca++ 0.0001mmmol/dL 1mmmol/dL 122mmV

ThemmembranemhasmchannelsmformNa+,mK+,mCl–
,mandmCa++.mThemconductancemofmthemmembranemismthemgreatestmformwhichmion?

A. Na+
B. K+
C. Cl–
D. Ca++mA
NS:mB

5. Amcellmcontainsmthemfollowingmmembranemtransporters:




Na+mchannelK+mchanne
lmNa+,K+-ATPase

, Themrestingmmembranemvoltagemofmthemcellmism–80mmV,mandmthemintracellularmand