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Test Bank for Berne & Levy Physiology 8th Edition by Koeppen & Stanton | Chapters 1–44 Verified Questions & Answers 2025

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Test Bank for Berne & Levy Physiology 8th Edition by Koeppen & Stanton | Chapters 1–44 Verified Questions & Answers 2025

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Course Berne & Levy Physiology 8th Edition

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Test Bank for Berne & Levy Physiology 8th Edition by Koeppen & Stanton | Chapters 1–44 Verified Questions & Answers 2025 Test Bank for Berne & Levy Physiology 8th Edition by Koeppen & Stanton | Chapters 1–44 Verified Questions & Answers 2025

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BERNE AND LEVY PHYSIOLOGY 7TH
EDITION KOEPPEN ALL CHAPTERS
LATEST & UPDATED 2024 A+

Chapter6701:67Principles67of67Cell67Function67Test67Bank
Multiple67Choices

1. The67subcellular67structure67that67degrades67proteins67is67called67the:

A. Tight67junction
B. Mitochondria
C. Lysosome
D. Plasma67membrane
E. Ribosome
67ANS:67C

2. An67experiment67is67done67to67measure67the67uptake67of67an67amino67acid67into67a67cell.6
7The67following67data67are67obtained:

If67Na+67is67removed67from67the67extracellular67bathing67solution,67or67if67a67drug67is67added67th
at67prevents67the67cell67from67making67adenosine67triphosphate67(ATP),67the67uptake67of67amino
67acid67into67the67cell67is67markedly67reduced.67According67to67this67information,67which67of67the

67followingmechanisms67is67probably67responsible67for67the67transport67of67the67amino67acid67int

A+ Page67

,o67the67cell?

A+ Page67

,A. Passive67diffusion67through67the67lipid67bilayer
B. Uniporter
C. Transport67ATPase
D. Na+67symporter
E. Na+67antiporter67ANS:67D

3. A67membrane67permeable67by67only67Na+67separates67two67compartments67c
ontaining67Na2SO4,shown67as67follows:

Electrodes67are67placed67in67both67compartments,67and67a67voltage67is67applied67(that67of67com
partment67A67is67held67at67067mV).67What67voltage67applied67to67compartment67B67would67resul
tin67no67net67movement67of67Na+67across67the67membrane67separating67the67compartments?

A. –6067mV
B. –3067mV
C. 067mV
D. +3067mV
E. +6067mV67ANS:67E

4. The67resting67membrane67potentNial67oRf67aIcellGis67–
B85.CmV.67The67intracellular67and67extracellular67concentrations67of67several67ions67are
67indicated67in67the67following67table,67as67is67the67calculated

Nernst67equilibrium67potential67(Ei)67for67each67of67these67ions:

A+ Page67

, Ion Concentration
Inside67Cell
Concentration
67Outside67Cell Ei
Na+ 1267mEq/L 14567mEq/L 6667mV
K+ 15067mEq/L 467mEq/L –9667mV
Cl– 3067mEq/L 10567mEq/L –3367mV
Ca++6 7 6 7 0.000167mmol/dL 167mmol/dL 12267mV

The67membrane67has67channels67for67Na+,67K+,67Cl–
,67and67Ca++.67The67conductance67of67the67membrane67is67the67greatest67for67which67ion?

A. Na+
B. K+
C. Cl–
D. Ca++67ANS:67B

5. A67cell67contains67the67following67membrane67transporters:

Na+67channelK+67channel67Na+,K+-ATPase

The67resting67membrane67voltage67of67the67cell67is67–

8067mV,67and67the67intracellular67and67extracellular67ion67concentrations67are67as67follow

s:

A+ Page67

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