v v
,Berneand LevyPhysiology7thEdition Koeppen
v v
,Berneand LevyPhysiology7thEdition Koeppen
v v
, Berneand LevyPhysiology7thEdition Koeppen
v v
Chapter01:PrinciplesofCellFunctionTe
stBank
vMultipleChoice
1. Thesubcellularstructurethat degrades proteins is called the: v v v v v
A. Tightjunction
B. Mitochondria
C. Lysosome
D. Plasmamembrane
E. Ribosome
ANS: C v
2. Anexperimentis done tomeasuretheuptakeofanaminoacidintoacell.Thefollowingdat
v v
va areobtained:
v
N
If Na+ is removed from the extracellular bathing solution, or if a drug is added that prevents the cell
v v v v v v v v v v v v v v v v v v
vfrom making adenosine triphosphate (ATP), the uptake of amino acid into the cell is markedly red
v v v v v v v v v 0 v v v v v
vuced. According to this information, which of the followingmechanisms is probably responsible f
v v v v v v v v v v v v
vor the transport of the amino acid into the cell?
v v v v v v v v v
A. Passive diffusionthrough the lipid bilayer
v v v v
B. Uniporter
C. Transport ATPase v
D. Na+symporter
E. Na+antiporter
ANS: D
v v
3. AmembranepermeablebyonlyNa+ separatestwo compartments containing N v v v v
a2SO4,shown as follows:
v v v