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

,
,Chapter 01: Principles of Cell FunctionT
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est Bank
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Multiple Choice
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1. The subcellular structure that degrades proteins is called the:
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, A. Tight junction ff



B. Mitochondria
C. Lysosome
D. Plasma membrane ff



E. Ribosome
ANS: C f f




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




If Na+ is removed from the extracellular bathing solution, or if a drug is added that prevents the ce
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ll from making adenosine triphosphate (ATP), the uptake of amino acid into the cell is markedl
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y reduced. According to this information, which of the followingmechanisms is probably respo
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nsible for the transport of the amino acid into the cell?
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A. Passive diffusion through the lipid bilayer ff ff ff ff ff


B. Uniporter
C. Transport ATPase ff



D. Na+ symporter ff



E. Na+ antiporter
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ANS: D f f




3. A membrane permeable by only Na+ separates two compartments containing N
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a2SO4,shown as follows: ff ff