Test Bank for Berne and Levy Physiology, 8th Edition (Koeppen, 2024), Chapter 1-44 | All Chapters

NEWEST VERSION) 2024.
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, Berne and Levy Physiology 7th Edition Koeppe
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Berne and Levy Physiology 8th Edition KoeppenTest Bank Koepp
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en: Berne and Levy Physiology, 8th Edition
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Chapter 01: Principles of Cell FunctionT xz xz xz xz xz



est Bank xz



Multiple Choice xz




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



B. Mitochondria
C. Lysosome
D. Plasma membrane xz



E. Ribosome
ANS: C x z




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




If Na+ is removed from the extracellular bathing solution, or if a drug is added that prevents th
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e cell from making adenosine triphosphate (ATP), the uptake of amino acid into the cell is
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markedly reduced. According to this information, which of the followingmechanisms is prob
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ably responsible for the transport of the amino acid into the cell?
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A. Passive diffusion through the lipid bilayer xz xz xz xz xz


B. Uniporter
C. Transport ATPase xz



D. Na+ symporter xz



E. Na+ antiporter xz



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:
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,Berne and Levy Physiology 7th Edition Koeppe
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n




Electrodes are placed in both compartments, and a voltage is applied (that of compartment A
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is held at 0 mV). What voltage applied to compartment B would resultin no net movement of
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Na+ across the membrane separating the compartments?
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A. –60 mV xz



B. –30 mV xz


C. 0 mV xz



D. +30 mV xz



E.
+60 mV xz



ANS: E
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4. The resting membrane potentN ial oRf a Ic e llGis –
USN
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B85.m
CV. The intracellular and extracellular concentrations of several ions are indicated i
xz xz
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n 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 xz Outside Cell xz


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




K+ 150 mEq/L xz 4 mEq/L
xz –96 mV xz




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




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




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+
C. Cl–
D. Ca++ A x z



NS: B xz




5. A cell contains the following membrane transporters:
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Na+ channelK+ channel
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Na+,K+-ATPase
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, Berne and Levy Physiology 7th Edition Koeppe
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nThe resting membrane voltage of the cell is –80 mV, and the intracellular and
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