Understanding P m
athophysiology m
7th Edition Test B
m m m
ank.
, Understanding Pathophysiology 7th Edition Test Bank
m m m m m
Chapterm1.mCellularmBiology
MULTIPLEmCHOICE
1. A mstudent mismobservingmamcellmundermthemmicroscope.mIt mismobserved mtomhavemsupercoiled mD
NAmwithmhistones.mWhichmof mthemfollowingmwould malsombemobserved mbymthemstudent?
a. Amsinglemcircularmchromosome
b. Amnucleus
c. Free-floatingmnuclearmmaterial
d. Nomorganelles
ANS:mB
Themcellmdescribed mismameukaryoticmcell,msomit mhasmhistonesmand mamsupercoiled mDNA mwithinmitsmnucl
eus;mthus,mthemnucleusmshould mbemobserved.
Amsinglemcircularmchromosomemismcharacteristicmof mprokaryoticmcells,mwhichmdomnot mhavemhistones.
Free-
floatingmnuclearmmaterialmdescribesmamprokaryoticmcell,mwhichmwould mnot mhavemamdistinct mnucleus.
Eukaryoticmcellsmhavemmembranembounded mcellularmcomponentsmcalled morganelles.mNomorganelles
describesmamprokaryoticmcell.
m
2. A mnursemisminstructingmthemstaff mabout mcellularmfunctions.mWhichmcellularmfunctionmismthemnu
rsemdescribingmwhenmanmisolated mcellmabsorbsmoxygenmand musesmit mtomtransformmnutrientsmtomen
ergy?
a. Metabolicmabsorption
b. Communication
c. Secretion
d. Respiration
,ANS:mD
Themabilitymof mthemcellmtomabsorbmoxygenmrefersmtomthemcellsmfunctionmof mrespiration.
Themabilitymof mthemcellmtomfunctionmwithinmamsocietymof mcellsmrefersmtomitsmfunctionmof mcommunica
tion.
Themabilitymof mthemcellmtomtakeminmnutrientsmrefersmtomthemcellsmfunctionmof mmetabolicmabsorption.
Themabilitymof mthemcellmtomsynthesizemnew msubstancesmand msecretemthesemelsewheremrefersmtomthemce
llsmfunctionmof msecretion.
3. A meukaryoticmcellmismundergoingmDNA mreplication.mInmwhichmregionmof mthemcellmwould mmost
of mthemgeneticminformationmbemcontained?
m
a. Mitochondria
b. Ribosome
c. Nucleolus
d. Nucleus
ANS:mC
Themregionmof mthemcellmthat mcontainsmgeneticmmaterial,mincludingmamlargemamount mof mribonucleicm
acid,mmost mof mthemDNA,mand mDNA-bindingmproteins,mismthemnucleolus.
Themmitochondriamismthemsitemof mcellularmrespiration.
Themribosomesmareminvolved minmmanufacturingmof mproteinsmwithinmthemcell.
Themnucleusmcontainsmthemnucleolus,mand mit mismthemnucleolusmthat mcontainsmgeneticmmaterial.
4. Themfluid mmosaicmmodelmformbiologicmmembranesmdescribesmmembranembehavior.mAccordingm
tomthismmodel,mwhichmof mthemfollowingmfloat msinglymormasmaggregatesminmthemfluid mlipid mbilayer?
a. Peripheralmmembranemproteins
b. Integralmmembranemproteins
, c. Glycoproteins
d. Cellmadhesionmmolecules
ANS:mB
Integralmmembranemproteinsmfloat mfreelyminmthemfluid mlipid mbilayer.
Peripheralmmembranemproteinsmaremnot membedded minmthemlayer,mbut mresidemat mthemsurface.mGlycopr
oteinsmact masmcellmsurfacemmarkers.
Cellmadhesionmmoleculesmaremonmthemoutsidemof mthemmembranemand mallow mcellsmtomhookmtogether.
5. Whichmof mthemfollowingmcanmbind mtomplasmammembranemreceptors?
a. Oxygen
b. Ribosomes
c. Amphipathicmlipids
d. Ligands
ANS:mD
Ligandsmaremspecificmmoleculesmthat mcanmbind mwithmreceptorsmonmthemcellmmembrane.mOx
ygenmmovesmbymdiffusion;mit mdoesmnot mbind mtomreceptors.
Ribosomesmmakemproteinsmand maremnot minvolved minmbindin
g.mAmphipathicmlipidsmaremamportionmof mthemcellmmembran
e.
6. A mnursemismreviewingmamreport mfrommampatient mwithmmetastaticmcancer.mWhat mfindingmwo
uld msupport mthemdiagnosismof mmetastaticmcancer?mAlterationsminmextracellularmmatrixmthat min
clude:
a. Decreased mfibronectin
b. Increased mcollagen
c. Decreased melastin
athophysiology m
7th Edition Test B
m m m
ank.
, Understanding Pathophysiology 7th Edition Test Bank
m m m m m
Chapterm1.mCellularmBiology
MULTIPLEmCHOICE
1. A mstudent mismobservingmamcellmundermthemmicroscope.mIt mismobserved mtomhavemsupercoiled mD
NAmwithmhistones.mWhichmof mthemfollowingmwould malsombemobserved mbymthemstudent?
a. Amsinglemcircularmchromosome
b. Amnucleus
c. Free-floatingmnuclearmmaterial
d. Nomorganelles
ANS:mB
Themcellmdescribed mismameukaryoticmcell,msomit mhasmhistonesmand mamsupercoiled mDNA mwithinmitsmnucl
eus;mthus,mthemnucleusmshould mbemobserved.
Amsinglemcircularmchromosomemismcharacteristicmof mprokaryoticmcells,mwhichmdomnot mhavemhistones.
Free-
floatingmnuclearmmaterialmdescribesmamprokaryoticmcell,mwhichmwould mnot mhavemamdistinct mnucleus.
Eukaryoticmcellsmhavemmembranembounded mcellularmcomponentsmcalled morganelles.mNomorganelles
describesmamprokaryoticmcell.
m
2. A mnursemisminstructingmthemstaff mabout mcellularmfunctions.mWhichmcellularmfunctionmismthemnu
rsemdescribingmwhenmanmisolated mcellmabsorbsmoxygenmand musesmit mtomtransformmnutrientsmtomen
ergy?
a. Metabolicmabsorption
b. Communication
c. Secretion
d. Respiration
,ANS:mD
Themabilitymof mthemcellmtomabsorbmoxygenmrefersmtomthemcellsmfunctionmof mrespiration.
Themabilitymof mthemcellmtomfunctionmwithinmamsocietymof mcellsmrefersmtomitsmfunctionmof mcommunica
tion.
Themabilitymof mthemcellmtomtakeminmnutrientsmrefersmtomthemcellsmfunctionmof mmetabolicmabsorption.
Themabilitymof mthemcellmtomsynthesizemnew msubstancesmand msecretemthesemelsewheremrefersmtomthemce
llsmfunctionmof msecretion.
3. A meukaryoticmcellmismundergoingmDNA mreplication.mInmwhichmregionmof mthemcellmwould mmost
of mthemgeneticminformationmbemcontained?
m
a. Mitochondria
b. Ribosome
c. Nucleolus
d. Nucleus
ANS:mC
Themregionmof mthemcellmthat mcontainsmgeneticmmaterial,mincludingmamlargemamount mof mribonucleicm
acid,mmost mof mthemDNA,mand mDNA-bindingmproteins,mismthemnucleolus.
Themmitochondriamismthemsitemof mcellularmrespiration.
Themribosomesmareminvolved minmmanufacturingmof mproteinsmwithinmthemcell.
Themnucleusmcontainsmthemnucleolus,mand mit mismthemnucleolusmthat mcontainsmgeneticmmaterial.
4. Themfluid mmosaicmmodelmformbiologicmmembranesmdescribesmmembranembehavior.mAccordingm
tomthismmodel,mwhichmof mthemfollowingmfloat msinglymormasmaggregatesminmthemfluid mlipid mbilayer?
a. Peripheralmmembranemproteins
b. Integralmmembranemproteins
, c. Glycoproteins
d. Cellmadhesionmmolecules
ANS:mB
Integralmmembranemproteinsmfloat mfreelyminmthemfluid mlipid mbilayer.
Peripheralmmembranemproteinsmaremnot membedded minmthemlayer,mbut mresidemat mthemsurface.mGlycopr
oteinsmact masmcellmsurfacemmarkers.
Cellmadhesionmmoleculesmaremonmthemoutsidemof mthemmembranemand mallow mcellsmtomhookmtogether.
5. Whichmof mthemfollowingmcanmbind mtomplasmammembranemreceptors?
a. Oxygen
b. Ribosomes
c. Amphipathicmlipids
d. Ligands
ANS:mD
Ligandsmaremspecificmmoleculesmthat mcanmbind mwithmreceptorsmonmthemcellmmembrane.mOx
ygenmmovesmbymdiffusion;mit mdoesmnot mbind mtomreceptors.
Ribosomesmmakemproteinsmand maremnot minvolved minmbindin
g.mAmphipathicmlipidsmaremamportionmof mthemcellmmembran
e.
6. A mnursemismreviewingmamreport mfrommampatient mwithmmetastaticmcancer.mWhat mfindingmwo
uld msupport mthemdiagnosismof mmetastaticmcancer?mAlterationsminmextracellularmmatrixmthat min
clude:
a. Decreased mfibronectin
b. Increased mcollagen
c. Decreased melastin
