Test Bank for Berne and Levy Physiology, 7th Edition by Koeppen
Berne and Levy Physiology
Berne and Levy Physiology
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Created By: Irfan Ali
TEST BANK FOR BERNE AND LEVY
PHYSIOLOGY 7TH EDITION KOEPPEN ALL
CHAPTERS LATEST & UPDATED 2024 A++
Chapter 01: Principles of Cell Function Test Bank
Multiple Choices
1. The subcellular structure that degrades proteins is called the:
A. Tight junction
B. Mitochondria
C. Lysosome
D. Plasma membrane
E. Ribosome
ANS: C
2. An experiment is done to measure the uptake of an amino acid into a cell. The following
data are obtained:
If Na+ is removed from the extracellular bathing solution, or if a drug is added that prevents the
cell from making adenosine triphosphate (ATP), the uptake of amino acid into the cell is
markedly reduced. According to this information, which of the followingmechanisms is probably
responsible for the transport of the amino acid into the cell?
A+ Page 1
,Created By: Irfan Ali
A. Passive diffusion through the lipid bilayer
B. Uniporter
C. Transport ATPase
D. Na+ symporter
E. Na+ antiporter ANS: D
3. A membrane permeable by only Na+ separates two compartments containing
Na2SO4,shown as follows:
Electrodes are placed in both compartments, and a voltage is applied (that of compartment A is
held at 0 mV). What voltage applied to compartment B would resultin no net movement of Na+
across the membrane separating the compartments?
A. –60 mV
B. –30 mV
C. 0 mV
D. +30 mV
E. +60 mV ANS: E
4. The resting membrane potentNial oRf aIcellGis –B85.CmV. The intracellular and
extracellular concentrations of several ions are indicated in the following table, as is the
calculated
Nernst equilibrium potential (Ei) for each of these ions:
The cell is treated with a drug to inhibit the Na+,K+-ATPase. What would be the effect ofthis
drug on the following parameters?
Intracellular [Na+] Intracellular [K+] Cell Volume Membrane Voltage
A. Decrease Decrease Decrease Depolarize
B. Increase Decrease Increase Depolarize
C. Increase Increase Increase No change
D. Decrease Increase Decrease Hyperpolarize
E. Increase Increase Decrease Hyperpolarize
ANS: B
6. Which of the labeled proteins (shaded) is attached to the membrane by a
glycosylphosphatidylinositol (GPI) anchor?
ANS: E
7. A cell has channels for Na+, K+, and Cl– in its plasma membrane. The resting membrane
potential is –60 mV (cell interior negative). The intracellular and extracellular concentrations for
these ions, as well as the calculated Nernst potentials, are listed as follows:
A+ Page 4
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