m m m m m m m
7TH EDITION KOEPPEN ALL CHAPTERS 1-
m m m m m
44 COMPLETE GUIDE (NEWEST VERSION).
m m m m
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n
Berne and Levy Physiology 7th Edition KoeppenTest Bank Koepp
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
m m m m
FunctionTest Bank
m m
Multiple Choice
m
1. Themsubcellularmstructuremthat mdegradesmproteinsmismcalled mthe:
A. Tight mjunction
B. Mitochondria
C. Lysosome
D. Plasmammembrane
E. Ribosome
ANS:m C
2. Anmexperiment mismdonemtommeasuremthemuptakemof manmaminomacid mintomamcell.mThemfollowi
ngmdatamaremobtained:
N
If mNa+mismremoved mfrommthemextracellularmbathingmsolution,mormif mamdrugmismadded mthat mpreventsm
themcellmfrommmakingmadenosinemtriphosphatem(ATP),mthemuptakemof maminomacid mintomthemcellm is
mmarkedlymreduced.mAccordingmtomthisminformation,mwhichmof mthemfollowingmechanismsmismpro
bablymresponsiblemformthemtransport mof mthemaminomacid mintomthemcell?
A. Passivemdiffusionmthroughmthemlipid mbilayer
B. Uniporter
C. Transport mATPase
D. Na+msymporter
E. Na+mantiporter
mANS:m D
3. A mmembranempermeablembymonlymNa+mseparates mtwomcompartmentsmcontainin
gmNa2SO4,shownmasmfollows:
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Electrodesmaremplaced minmbothmcompartments,mand mamvoltagemismapplied m(that mof mcompartment mA
mismheld mat m0mmV).mWhat mvoltagemapplied mtomcompartment mB mwould mresultinmnomnet mmovement m
of mNa+macrossmthemmembranemseparatingmthemcompartments?
A. –60mmV
B. –30mmV
C. 0mmV
D. +30mmV
E.
+60mm
V mANS:m E
4. Themrestingm membranempotentN ce llGis m–
ial moRf ma I
U mS mN mT
B85.m
CV.mThemintracellularmandmextracellularmconcentrationsmof mseveralmionsmaremindicated
minmthemfollowingmtable,masmismthemcalculated
Nernst mequilibriummpotentialm(Ei)mformeachmof mthesemions:
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–
,mand mCa++.mThemconductancemof mthemmembranemismthemgreatest mformwhichmion?
A. Na+
B. K +
C. Cl–
D. Ca++mA
NS:mB
5. A mcellmcontainsmthemfollowingmmembranemtransporters:
Na+mchannelK +mchanne
lmNa+,K+-ATPase
, Bernemand mLevymPhysiologym7thmEditionmKoeppe
nThemrestingmmembranemvoltagemof mthemcellmism–80mmV,mand mthemintracellularmand