Understanding Pathophysiology 7th edition by Huether, McCance Test Bank
n n n n n n n n
n
All well solved complete (questions and answers) solution in this test bank
n n n n n n n n n n n
,Chaptern1.nCellularnBiology
MULTIPLEnCHOICE
1. Astudentnisnobservingancellundernthenmicroscope.nItnisnobservedntonhavensupercoilednDNAn
withnhistones.nWhichnofnthenfollowingnwouldnalsonbenobservednbynthenstudent?
a. Asinglencircularnchromosome
b. Annucleus
c. Free-floatingnuclearn material
d. Nonorganelles
ANS:nB
Thencellndescribednisnaneukaryoticncell,nsonitnhasnhistonesnandnansupercoilednDNAwithinnitsnnucleu
s;nthus,nthennucleusnshouldnbenobserved.
Asinglencircularnchromosomenisncharacteristicnofprokaryoticncells,nwhichndonnotnhavenhistones.
Free-
floatingnnuclearnmaterialdescribesnanprokaryoticncell,nwhich would notnhavenandistinctnnucleus.
mi mi
Eukaryoticncellsnhavenmembranenbounded cellularncomponentsncallednorganelles.nNonorganellesn
mi
describesnanprokaryoticncell.
2. Annursenisninstructing thenstaffnaboutncellularnfunctions.nWhich cellularnfunctionnisnthennursend
m mi
escribingnwhennannisolatedncellnabsorbsnoxygennandnusesnitntontransformnnutrientsntonenergy?
a. Metabolicnabsorption
b. Communication
c. Secretion
d. Respiration
,ANS:nD
Thenabilityofnthencellntonabsorbnoxygennrefersntonthencellsnfunctionnofnrespiration.
Thenabilityofnthencellntonfunctionnwithinnansocietyofcellsnrefersntonitsnfunctionnofncommunication.nTh
enabilityofnthencellntontakeninnnutrientsnrefersntonthencellsnfunctionnofnmetabolicnabsorption.
Thenabilityofthencellntonsynthesizennewnsubstancesnandnsecretenthesenelsewherenrefersntonthencellsnfunctio
nnofnsecretion.
3. AeukaryoticncellnisnundergoingnDNAnreplication.nInnwhichnregionnofthencellwouldnmostnofnt
hengeneticninformationnbencontained?
a. Mitochondria
b. Ribosome
c. Nucleolus
d. Nucleus
ANS:nC
Thenregionofthencellthatncontainsngeneticnmaterial,nincluding anlargenamountnof ribonucleicnacid,nm
mi mi
ostnofnthenDNA,nandnDNA-bindingnproteins,nisnthennucleolus.
Thenmitochondrianisnthensitenofcellularnrespiration.
Thenribosomesnareninvolvedninnmanufacturingnofproteinsnwithin thencell.
mi
Thennucleusncontainsnthennucleolus,nandnitn isnthennucleolusnthatncontainsngeneticnmaterial.
4. Thenfluidnmosaicnmodelfornbiologicnmembranesndescribesnmembranenbehavior.nAccording ton mi
thisnmodel,nwhichnofnthenfollowingnfloatnsinglynornasnaggregatesninnthenfluidnlipidnbilayer?
a. Peripheralmembranenproteins
b. Integralnmembranenproteins
, c. Glycoproteins
d. Cellnadhesionnmolecules
ANS:nB
Integralmembranenproteinsnfloatnfreelynin thenfluidnlipidnbilayer.
mi
Peripheralmembranenproteinsnarennotnembeddedninnthenlayer,nbutnresidenatnthensurface.nGlycoprotei
nsnactnasncellnsurfacenmarkers.
Cellnadhesionnmoleculesnarenonthenoutsidenofthenmembranenandnallowncellsntonhooktogether.
5. Whichofthenfollowingncannbindnton plasmanmembranenreceptors?
a. Oxygen
b. Ribosomes
c. Amphipathicnlipids
d. Ligands
ANS:nD
Ligandsnarespecificnmoleculesnthatncannbindnwithreceptorsonthencellnmembrane.nOxygennmove
snbyndiffusion;nitndoesnnotnbindntonreceptors.
Ribosomesnmakeproteinsandnarenotninvolvednin binding.nA
mi
mphipathicnlipidsnarenanportionnofnthencellnmembrane.
6. Anursenisnreviewingnareportnfrom anpatientnwithnmetastaticncancer.nWhatnfindingnwouldns
mi
upportnthediagnosisnofmetastaticncancer?nAlterationsnin extracellularnmatrixnthatninclude:
mi
a. Decreasednfibronectin
b. Increasedncollagen
c. Decreased elastin
mi
n n n n n n n n
n
All well solved complete (questions and answers) solution in this test bank
n n n n n n n n n n n
,Chaptern1.nCellularnBiology
MULTIPLEnCHOICE
1. Astudentnisnobservingancellundernthenmicroscope.nItnisnobservedntonhavensupercoilednDNAn
withnhistones.nWhichnofnthenfollowingnwouldnalsonbenobservednbynthenstudent?
a. Asinglencircularnchromosome
b. Annucleus
c. Free-floatingnuclearn material
d. Nonorganelles
ANS:nB
Thencellndescribednisnaneukaryoticncell,nsonitnhasnhistonesnandnansupercoilednDNAwithinnitsnnucleu
s;nthus,nthennucleusnshouldnbenobserved.
Asinglencircularnchromosomenisncharacteristicnofprokaryoticncells,nwhichndonnotnhavenhistones.
Free-
floatingnnuclearnmaterialdescribesnanprokaryoticncell,nwhich would notnhavenandistinctnnucleus.
mi mi
Eukaryoticncellsnhavenmembranenbounded cellularncomponentsncallednorganelles.nNonorganellesn
mi
describesnanprokaryoticncell.
2. Annursenisninstructing thenstaffnaboutncellularnfunctions.nWhich cellularnfunctionnisnthennursend
m mi
escribingnwhennannisolatedncellnabsorbsnoxygennandnusesnitntontransformnnutrientsntonenergy?
a. Metabolicnabsorption
b. Communication
c. Secretion
d. Respiration
,ANS:nD
Thenabilityofnthencellntonabsorbnoxygennrefersntonthencellsnfunctionnofnrespiration.
Thenabilityofnthencellntonfunctionnwithinnansocietyofcellsnrefersntonitsnfunctionnofncommunication.nTh
enabilityofnthencellntontakeninnnutrientsnrefersntonthencellsnfunctionnofnmetabolicnabsorption.
Thenabilityofthencellntonsynthesizennewnsubstancesnandnsecretenthesenelsewherenrefersntonthencellsnfunctio
nnofnsecretion.
3. AeukaryoticncellnisnundergoingnDNAnreplication.nInnwhichnregionnofthencellwouldnmostnofnt
hengeneticninformationnbencontained?
a. Mitochondria
b. Ribosome
c. Nucleolus
d. Nucleus
ANS:nC
Thenregionofthencellthatncontainsngeneticnmaterial,nincluding anlargenamountnof ribonucleicnacid,nm
mi mi
ostnofnthenDNA,nandnDNA-bindingnproteins,nisnthennucleolus.
Thenmitochondrianisnthensitenofcellularnrespiration.
Thenribosomesnareninvolvedninnmanufacturingnofproteinsnwithin thencell.
mi
Thennucleusncontainsnthennucleolus,nandnitn isnthennucleolusnthatncontainsngeneticnmaterial.
4. Thenfluidnmosaicnmodelfornbiologicnmembranesndescribesnmembranenbehavior.nAccording ton mi
thisnmodel,nwhichnofnthenfollowingnfloatnsinglynornasnaggregatesninnthenfluidnlipidnbilayer?
a. Peripheralmembranenproteins
b. Integralnmembranenproteins
, c. Glycoproteins
d. Cellnadhesionnmolecules
ANS:nB
Integralmembranenproteinsnfloatnfreelynin thenfluidnlipidnbilayer.
mi
Peripheralmembranenproteinsnarennotnembeddedninnthenlayer,nbutnresidenatnthensurface.nGlycoprotei
nsnactnasncellnsurfacenmarkers.
Cellnadhesionnmoleculesnarenonthenoutsidenofthenmembranenandnallowncellsntonhooktogether.
5. Whichofthenfollowingncannbindnton plasmanmembranenreceptors?
a. Oxygen
b. Ribosomes
c. Amphipathicnlipids
d. Ligands
ANS:nD
Ligandsnarespecificnmoleculesnthatncannbindnwithreceptorsonthencellnmembrane.nOxygennmove
snbyndiffusion;nitndoesnnotnbindntonreceptors.
Ribosomesnmakeproteinsandnarenotninvolvednin binding.nA
mi
mphipathicnlipidsnarenanportionnofnthencellnmembrane.
6. Anursenisnreviewingnareportnfrom anpatientnwithnmetastaticncancer.nWhatnfindingnwouldns
mi
upportnthediagnosisnofmetastaticncancer?nAlterationsnin extracellularnmatrixnthatninclude:
mi
a. Decreasednfibronectin
b. Increasedncollagen
c. Decreased elastin
mi
