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BERNE AND LEVY PHYSIOLOGY
7TH EDITION KOEPPEN ALL
CHAPTERS
, Berne and Levy Physiology 7th Edition Koeppen
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Berne and Levy Physiology 7th Edition KoeppenTest Bank
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g Koeppen: Berne and Levy Physiology, 7th Edition b-g b-g b-g b-g b-g b-g
Chapter 01: Principles of Cell b-g b-g b-g b-g b-
FunctionTest Bank
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Multiple Choice b-g
1. The subcellular structure that degrades proteins is called the:
b-g b-g b-g b-g b-g b-g b-g b-g
A. Tight junction b-g
B. Mitochondria
C. Lysosome
D. Plasma membrane b-g
E. Ribosome
ANS: C b - g
2. An experiment is done to measure the uptake of an amino acid into a cell. The following
b-g b-g b-g b-g b-g b-g b-g b-g b-g b-g b-g b-g b-g b-g b-g b-g b-
data are obtained:
g b-g b-g
N
If Na+ is removed from the extracellular bathing solution, or if a drug is added that prevents the
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cell from making adenosine triphosphate (ATP), the uptake of amino acid into the cell is
g b-g b-g b-g b-g b-g b-g b-g b-g b-g b-g b-g b-g b-g b-g b-
markedly reduced. According to this information, which of the followingmechanisms is
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probably responsible for the transport of the amino acid into the cell?
g b-g b-g b-g b-g b-g b-g b-g b - g b-g b-g b-g
A. Passive diffusion through the lipid bilayer b-g b-g b-g b-g b-g
B. Uniporter
C. Transport ATPase b-g
D. Na+ symporter b-g
E. Na+ b-
antiporter
g b-
ANS: D
g b - g
3. A membrane permeable by only Na+ separates two compartments containing
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Na2SO4,shown as follows:
g b-g b-g
,Berne and Levy Physiology 7th Edition Koeppen
b-g b-g b-g b-g b-g b-g
Electrodes are placed in both compartments, and a voltage is applied (that of compartment A is
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held at 0 mV). What voltage applied to compartment B would resultin no net movement of Na+
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across the membrane separating the compartments?
g b-g b-g b-g b-g b-g
–60 mV
A. b-g
–30 mV
B. b-g
C.
0 mV b-g
D. +30 mV b-g
E. +60 mV b-g b-
ANS: E
g b - g
4. The resting membrane potentN ce l lGis –B
ial oRfa I 85.C
mV. The intracellular and extracellular
b-g
U S N T b-g
concentrations of several ions are indicated in the following table, as is the calculated
g b-g b-g
b-g
b-g b-g
b-g
b-g
b-g
b-g
b
-
g b-g
b-g
b-g
b-g b-g
b-g b-g
b-g b-g b-g
b-g
b-g
b-g
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b-
Nernst equilibrium potential (Ei) for each of these ions:
b- g b-g b-g b-g b-g b-g b-g b-g
Ion Concentration Concentration Ei
Inside Cell b-g Outside Cell b-g
+
Na 12 mEq/L b-g 145 mEq/L b-g 66 mV b-g
K+ 150 mEq/L b-g 4 mEq/L b-g –96 mV b-g
Cl– 30 mEq/L b-g 105 mEq/L b-g –33 mV b-g
Ca++ 0.0001 mmol/dL b-g 1 mmol/dL
b-g 122 mV b-g
The membrane has channels for Na+, K+, Cl–, and Ca++. The conductance of the
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membrane is the greatest for which ion?
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A. Na+
B. K+
C. Cl–
D. Ca++ b-
ANS: B
g b-g
5. A cell contains the following membrane transporters:
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Na+ channelK+ channel
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Na+,K+-ATPase
g
The resting membrane voltage of the cell is –80 mV, and the intracellular and
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, Berne and Levy Physiology 7th Edition Koeppen
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extracellular ion concentrations are as follows:
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Ion Intracellular Extracellular
Concentration Concentration
Na+ 10 mEq/L b-g 145 mEq/L b-g
K+ 120 mEq/L b-g 4 mEq/L b-g
The cell is treated with a drug to inhibit the Na+,K+-ATPase. What would be the effect ofthis drug
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on the following parameters?
g b-g b-g b-g
Intracellular [Na+] b-g Intracellular [K+] b-g Cell Volume
b-g Membrane Voltage b-g
A. Decrease Decrease Decrease Depolarize
B. Increase Decrease Increase Depolarize
C. Increase Increase Increase No change
b-g
D. Decrease Increase Decrease Hyperpolarize
E. Increase Increase Decrease Hyperpolarize
ANS: B b - g
6. Which of the labeled proteins (shaded) is attached to the membrane by a
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glycosylphosphatidylinositol (GPI) anchor?
g b-g b-g
ANS: E b - g
7. A cell has channels for Na+, K+, and Cl– in its plasma membrane. The resting membrane
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potential is –60 mV (cell interior negative). The intracellular and extracellular
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concentrations for these ions, as well as the calculated Nernst potentials, are listed
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as follows: g b-g