Berne and Levy Physiology 7th Edition Koeppen Test Bank All Chapters ( Chapters 1-44 )

Berne and Levy Physiology 7th Edition Koeppen
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, Berne and Levy Physiology 7th Edition Koeppen
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Berne and Levy Physiology 7th Edition KoeppenTest Bank
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Koeppen: Berne and Levy Physiology, 7th Edition hj hj hj hj hj hj




Chapter 01: Principles of Cell hj hj hj hj



FunctionTest Bank hj



Multiple Choice hj




1. The subcellular structure that degrades proteins is called the:
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A. Tight junction hj


B. Mitochondria
C. Lysosome
D. Plasma membrane hj



E. Ribosome
ANS: C h j




2. An experiment is done to measure the uptake of an amino acid into a cell. The following
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data are obtained: hj hj




N




If Na+ is removed from the extracellular bathing solution, or if a drug is added that prevents the c
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ell from making adenosine triphosphate (ATP), the uptake of amino acid into the cell is marke
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dly reduced. According to this information, which of the followingmechanisms is probably res
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ponsible for the transport of the amino acid into the cell?
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A. Passive diffusion through the lipid bilayer hj hj hj hj hj


B. Uniporter
C. Transport ATPase hj



D. Na+ symporter hj



E. Na+ antiporterhj h



ANS: D
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3. A membrane permeable by only Na+ separates two compartments containing
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Na2SO4,shown as follows: hj hj

, Berne and Levy Physiology 7th Edition Koeppen
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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?
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A. –60 mV hj



B. –30 mV hj


C. 0 mV hj



D. +30 mV hj



E.
+60 mV hj



hj ANS: E h j




4. The resting membrane potentN
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B85.m U S N concentrations of several ions are indicated in
CV. The intracellular and extracellular hj hj hj hj
hj hj
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the following table, as is the calculated
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Nernst equilibrium potential (Ei) for each of these ions:
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Ion Concentration Concentration Ei
Inside Cell hj Outside Cell hj


+
Na 12 mEq/L hj 145 mEq/L hj 66 mV hj




K+ 150 mEq/L hj 4 mEq/L
hj –96 mV hj




Cl– 30 mEq/L hj 105 mEq/L hj –33 mV hj



Ca++ 0.0001 mmol/dL hj 1 mmol/dL
hj 122 mV hj




The membrane has channels for Na+, K+, Cl–
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, and Ca++. The conductance of the membrane is the greatest for which ion?
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A. Na+
B. K+
Cl– C.
D. Ca++ A h j



NS: B hj




5. A cell contains the following membrane transporters:
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Na+ channelK+ channel
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Na+,K+-ATPase

, Berne and Levy Physiology 7th Edition Koeppen
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The resting membrane voltage of the cell is –80 mV, and the intracellular and
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extracellular ion concentrations are as follows:
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Ion Intracellular Extracellular
Concentration Concentration
Na+ 10 mEq/L hj 145 mEq/L hj




K+ 120 mEq/L hj 4 mEq/L hj




The cell is treated with a drug to inhibit the Na+,K+-
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ATPase. What would be the effect ofthis drug on the following parameters?
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Intracellular [Na+] hj Intracellular [K+] hj Cell Volume
hj Membrane Voltage hj



A. Decrease Decrease Decrease Depolarize
B. Increase Decrease Increase Depolarize
C. Increase Increase Increase No change
hj



D. Decrease Increase Decrease Hyperpolarize
E. Increase Increase Decrease Hyperpolarize

ANS: B h j




6. Which of the labeled proteins (shaded) is attached to the membrane by a
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glycosylphosphatidylinositol (GPI) anchor? hj hj




ANS: E h j




7. A cell has channels for Na+, K+, and Cl–
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in its plasma membrane. The resting membrane potential is –
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60 mV (cell interior negative). The intracellular and extracellular concentrations for
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these ions, as well as the calculated Nernst potentials, are listed as follows:
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