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H EDITION KOEPPEN ALL CHAPTERS 1-
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44 COMPLETE GUIDE (NEWEST VERSION).
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, BernefandfLevyfPhysiologyf7thfEditionfKoeppen
Berne and Levy Physiology 7th Edition KoeppenTest BankKoeppen:
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Berne and Levy Physiology, 7th Edition
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Chapter 01: Principles of Cell
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FunctionTest Bank f
Multiple Choice f
1. Thefsubcellularfstructurefthatfdegradesfproteinsfisfcalledfthe:
A. Tightfjunction
B. Mitochondria
C. Lysosome
D. Plasmafmembrane
E. Ribosome
ANS:f C
2. Anfexperimentfisfdoneftofmeasurefthefuptakefoffanfaminofacidfintofafcell.fTheffollowingfdataf
arefobtained:
N
IffNa+fisfremovedffromfthefextracellularfbathingfsolution,forfiffafdrugfisfaddedfthatfpreventsfthefcellff
romfmakingfadenosineftriphosphatef(ATP),fthefuptakefoffaminofacidfintofthefcellfisfmarkedlyfredu
ced.fAccordingftofthisfinformation,fwhichfofftheffollowingmechanismsfisfprobablyfresponsibleffor
ftheftransportfoffthefaminofacidfintofthefcell?
A. Passivefdiffusionfthroughftheflipidfbilayer
B. Uniporter
C. TransportfATPase
D. Na+fsymporter
E. Na+fantiporterf
ANS:f D
3. AfmembranefpermeablefbyfonlyfNa+fseparatesftwofcompartmentsfcontainingfN
a2SO4,shownfasffollows:
,BernefandfLevyfPhysiologyf7thfEditionfKoeppen
Electrodesfarefplacedfinfbothfcompartments,fandfafvoltagefisfappliedf(thatfoffcompartmentfAfisfheld
+
fatf0fmV).fWhat fvoltagefappliedftofcompartment fBfwouldfresultinfnofnetfmovementfoffNa facrossfth
efmembranefseparatingfthefcompartments?
A. –60fmV
B. –30fmV
C. 0fmV
D. +30fmV
E.
+60fmVf
ANS:f E
4. ThefrestingfmembranefpotentN cellGisf–
ialfoRffa I
U fSfNfT
B85.mCV.fThefintracellularfandfextracellularfconcentrationsfoffseveralfionsfarefindicatedfinf
theffollowingftable,fasfisfthefcalculated
Nernstfequilibriumfpotentialf(Ei)fforfeachfoffthesefions:
Ion Concentration Concentration Ei
InsidefCell OutsidefCell
Na+ 12fmEq/L 145fmEq/L 66fmV
K+ 150fmEq/L 4fmEq/L –96fmV
Cl– 30fmEq/L 105fmEq/L –33fmV
Ca++ 0.0001fmmol/dL 1fmmol/dL 122fmV
ThefmembranefhasfchannelsfforfNa+,fK+,fCl–
,fandfCa++.fThefconductancefoffthefmembranefisfthefgreatestfforfwhichfion?
A. Na+
B. K+
C. Cl–
D. Ca++fA
NS:fB
5. Afcellfcontainsftheffollowingfmembraneftransporters:
Na+fchannelK+fchannelf
Na+,K+-ATPase
, BernefandfLevyfPhysiologyf7thfEditionfKoeppen
Thefrestingfmembranefvoltagefoffthefcellfisf–80fmV,fandfthefintracellularfand