Berne and Levy Physiology 8th Edition
n n n n n
Koepp
n
, Berne and Levy Physiology 8th Edition
n n n n n
Koepp
n
Berne and Levy Physiology 8th Edition KoeppenTest Bank Koeppen:
n n n n n n n n
n Bern e and Levy Physiology, 8th Edition
n n n n n n
Chapter 01: Principles of Cell Function n n n n n
Test Bank
n n
Multiple Choice n
1. The subcellular structure that degrades proteins is called the:
n n n n n n n n
A. Tight junction n
B. Mitochondria
C. Lysosome
D. Plasma membrane n
E. Ribosome
ANS: C
2. An experiment is done to measure the uptake of an amino acid into a cell. The
n n n n n n n n n n n n n n n
foll owing data are obtained:
n n n n n
N
If Na+ is removed from the extracellular bathing solution, or if a drug is added that
n n n n n n n n n n n n n n n
npreve nts the cell from making adenosine triphosphate (ATP), the uptake of amino
n n n n n n n n n n n n
nacid into th e cell is markedly reduced. According to this information, which of the
n n n n n n n n n n n n n n
nfollowingmechan isms is probably responsible for the transport of the amino acid
n n n n n n n n n n n
ninto the cell? n n
A. Passive diffusion through the lipid bilayer n n n n n
B. Uniporter
C. Transport ATPase n
D. Na+ symporter n
E. Na+ antiporter
n
ANS: D n n
3. A membrane permeable by only Na+ separates two compartments contain
n n n n n n n n n
ing Na2SO4,shown as follows:
n n n n
, Berne and Levy Physiology 8th Edition
n n n n n
Koepp
n
Electrodes are placed in both compartments, and a voltage is applied (that of
n n n n n n n n n n n n
ncompartme nt A is held at 0 mV). What voltage applied to compartment B would
n n n n n n n n n n n n n n
nresultin no net mo vement of Na+ across the membrane separating the compartments?
n n n n n n n n n n n n
A. –60 mV n
B. –30 mV n
C. 0 mVn
D. +30 mV n
E.
n
+60 m n
n V ANS: E
n n
4. The resting membrane potentN
n ial oRf a Ic e l lGis – TV n n n n n n n n
B85.m USN
CV. The intracellular and extracellular
n concentrations of several ions are indicat
n n n
n n
n n n n n n
ned in the following table, as is the calculated
n n n n n n n n
Nernst equilibrium potential (Ei) for each of these ions:
n n n n n n n n
Ion Concentration Concentration Ei
Inside Cell n Outside Cell n
+
Na 12 mEq/L n 145 mEq/L n 66 mV n
K+ 150 mEq/L n 4 mEq/L
n –96 mV n
Cl– 30 mEq/L n 105 mEq/L n –33 mV n
Ca++ 0.0001 mmol/dL n 1 mmol/dL
n 122 mV n
The membrane has channels for Na+, K+, Cl–
n n n n n n n
, and Ca++. The conductance of the membrane is the greatest for which ion
n n n n n n n n n n n n n
?
A. Na+
B. K+
C. Cl–
D. Ca++
ANS n
:
B
5. A cell contains the following membrane transporters:
n n n n n n
Na+ channelK+ channe
n n
, Berne and Levy Physiology 8th Edition
n n n n n
Na+,K+-ATPase
lKoepp
n n
The resting membrane voltage of the cell is –80 mV, and the intracellular and
n n n n n n n n n n n n n
n n n n n
Koepp
n
, Berne and Levy Physiology 8th Edition
n n n n n
Koepp
n
Berne and Levy Physiology 8th Edition KoeppenTest Bank Koeppen:
n n n n n n n n
n Bern e and Levy Physiology, 8th Edition
n n n n n n
Chapter 01: Principles of Cell Function n n n n n
Test Bank
n n
Multiple Choice n
1. The subcellular structure that degrades proteins is called the:
n n n n n n n n
A. Tight junction n
B. Mitochondria
C. Lysosome
D. Plasma membrane n
E. Ribosome
ANS: C
2. An experiment is done to measure the uptake of an amino acid into a cell. The
n n n n n n n n n n n n n n n
foll owing data are obtained:
n n n n n
N
If Na+ is removed from the extracellular bathing solution, or if a drug is added that
n n n n n n n n n n n n n n n
npreve nts the cell from making adenosine triphosphate (ATP), the uptake of amino
n n n n n n n n n n n n
nacid into th e cell is markedly reduced. According to this information, which of the
n n n n n n n n n n n n n n
nfollowingmechan isms is probably responsible for the transport of the amino acid
n n n n n n n n n n n
ninto the cell? n n
A. Passive diffusion through the lipid bilayer n n n n n
B. Uniporter
C. Transport ATPase n
D. Na+ symporter n
E. Na+ antiporter
n
ANS: D n n
3. A membrane permeable by only Na+ separates two compartments contain
n n n n n n n n n
ing Na2SO4,shown as follows:
n n n n
, Berne and Levy Physiology 8th Edition
n n n n n
Koepp
n
Electrodes are placed in both compartments, and a voltage is applied (that of
n n n n n n n n n n n n
ncompartme nt A is held at 0 mV). What voltage applied to compartment B would
n n n n n n n n n n n n n n
nresultin no net mo vement of Na+ across the membrane separating the compartments?
n n n n n n n n n n n n
A. –60 mV n
B. –30 mV n
C. 0 mVn
D. +30 mV n
E.
n
+60 m n
n V ANS: E
n n
4. The resting membrane potentN
n ial oRf a Ic e l lGis – TV n n n n n n n n
B85.m USN
CV. The intracellular and extracellular
n concentrations of several ions are indicat
n n n
n n
n n n n n n
ned in the following table, as is the calculated
n n n n n n n n
Nernst equilibrium potential (Ei) for each of these ions:
n n n n n n n n
Ion Concentration Concentration Ei
Inside Cell n Outside Cell n
+
Na 12 mEq/L n 145 mEq/L n 66 mV n
K+ 150 mEq/L n 4 mEq/L
n –96 mV n
Cl– 30 mEq/L n 105 mEq/L n –33 mV n
Ca++ 0.0001 mmol/dL n 1 mmol/dL
n 122 mV n
The membrane has channels for Na+, K+, Cl–
n n n n n n n
, and Ca++. The conductance of the membrane is the greatest for which ion
n n n n n n n n n n n n n
?
A. Na+
B. K+
C. Cl–
D. Ca++
ANS n
:
B
5. A cell contains the following membrane transporters:
n n n n n n
Na+ channelK+ channe
n n
, Berne and Levy Physiology 8th Edition
n n n n n
Na+,K+-ATPase
lKoepp
n n
The resting membrane voltage of the cell is –80 mV, and the intracellular and
n n n n n n n n n n n n n
