TEST BANK For Berne and Levy Physiology 8th Edition by Koeppen & Stanton,ISBN 978-0323847902 Verified Chapters 1 - 44 Questions with 100% Correct Answers Latest Update 2025/2026 Graded A+.

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Physiology 7th Edition
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, Berne10and10Levy10Physiology107th10Edition10KoeppenTest10Bank10Ko

eppen:10Berne10and10Levy10Physiology,107th10Edition

Chapter1001:10Principles10of10Cell10Function
Test10Bank
Multiple10Choice

1. The10subcellular10structure10that10degrades10proteins10is10called10the:

A. Tight10junction
B. Mitochondria
C. Lysosome
D. Plasma10membrane
E. Ribosome
ANS:1 0 C

2. An10experiment10is10done10to10measure10the10uptake10of10an10amino10acid10into10a10cell.10
The10following10data10are10obtained:


N




If10Na+10is10removed10from10the10extracellular10bathing10solution,10or10if10a10drug10is10added10th
at10prevents10the10cell10from10making10adenosine10triphosphate10(ATP),10the10uptake10of10amin
o10acid10into10the10cell10is10markedly10reduced.10According10to10this10information,10which10of10
the10followingmechanisms10is10probably10responsible10for10the10transport10of10the10amino1 0 aci
d10into10the10cell?

A. Passive10diffusion10through10the10lipid10bilayer
B. Uniporter
C. Transport10ATPase
D. Na+10symporter
E. Na+10antiporte
r10ANS:1 0 D

3. A10membrane10permeable10by10only10Na+10separates10two10compartments10co
ntaining10Na2SO4,shown10as10follows:

, Electrodes10are10placed10in10both10compartments,10and10a10voltage10is10applied10(that10of10com
partment10A10is10held10at10010mV).10What10voltage10applied10to10compartment10B10would10result
+
10in10no10net10movement10of10Na 10across10the10membrane10separating10the10compartments?


A. –6010mV
B. –3010mV
C. 010mV
D. +3010mV
E.
+6010m
V10ANS:1 0 E

4. The10resting10membrane10potentN ce l lGis 10–
ial 10oRf10a I
U 10S10N
B85.C
mV.10The10intracellular10and10extracellular10concentrations10of10several10ions10are10i
ndicated10in10the10following10table,10as10is10the10calculated
Nernst10equilibrium10potential10(Ei)10for10each10of10these10ions:

Ion Concentration Concentration Ei
Inside10Cell Outside10Cell
Na+ 1210mEq/L 14510mEq/L 6610mV
K+ 15010mEq/L 410mEq/L –9610mV
Cl– 3010mEq/L 10510mEq/L –3310mV
Ca++ 0.000110mmol/dL 110mmol/dL 12210mV

The10membrane10has10channels10for10Na+,10K+,10Cl–
,10and10Ca++.10The10conductance10of10the10membrane10is10the10greatest10for10which1
0ion?


A. Na+
B. K+
C. Cl–
D. Ca++10A
NS:10B

5. A10cell10contains10the10following10membrane10transporters:




Na+10channelK+10chann
el10Na+,K+-ATPase

, The10resting10membrane10voltage10of10the10cell10is10–8010mV,10and10the10intracellular10and