TEST BANK FOR Understanding Pathophysiology by Kathryn L. McCance and Sue E. Huether | COMPLETE GUIDE | 100% VERIFIED | A+ GRADE

,MULTIPLERCHOICE

1. ARstudentRisRobservingRaRcellRunderRtheRmicroscope.RItRisRobservedRtoRhaveRsupercoiledRDN
ARwithRhistones.RWhichRofRtheRfollowingRwouldRalsoRbeRobservedRbyRtheRstudent?
a. ARsingleRcircularRchromosome
b. ARnucleus
c. Free-floatingRnuclearRmaterial
d. NoRorganelles
ANS:R B
TheRcellRdescribedRisRaReukaryoticRcell,RsoRitRhasRhistonesRandRaRsupercoiledRDNARwithinRitsRn
ucleus;Rthus,RtheRnucleusRshouldRbeRobserved.RARsingleRcircularRchromosomeRcalledRaRprokary
oteRcontainsRfree-floatingRnuclearRmaterialRbutRhasRnoRorganelles.

REF:R p.R2

2. ARnurseRisRinstructingRtheRstaffRaboutRcellularRfunctions.RWhichRcellularRfunctionRisRtheRnurse
RdescribingRwhenRanRisolatedRcellRabsorbsRoxygenRandRusesRitRtoRtransformRnutrientsRtoRenerg
y?
a. MetabolicRabsorption
b. Communication
c. Secretion
d. Respiration
ANS:R D
TheRcell’sRabilityRtoRabsorbRoxygenRisRreferredRtoRasRrespirationRwhileRitsRcommunicationRabilityRin
volvesRmaintenanceRofRaRsteadyRdynamicRstate,RmetabolicRabsorptionRprovidesRnutrition,RandRsecre
tionRallowsRforRtheRsynthesizingRofRnewRsubstances.

REF:R p.R2

3. AReukaryoticRcellRisRundergoingRDNARreplication.RInRwhichRregionRofRtheRcellRwouldRmostRo
fRtheRgeneticRinformationRbeRcontained?
a. Mitochondria
b. Ribosome
c. Nucleolus
d. NucleusRCytoplasm
ANS:R C
TheRregionRofRtheRcellRthatRcontainsRgeneticRmaterial,RincludingRaRlargeRamountRofRribonucleicR
acid,RmostRofRtheRDNA,RandRDNA-
bindingRproteins,RisRtheRnucleolus,RwhichRisRlocatedRwithinRtheRcell’sRnucleus.RMitochondriaRis
RassociatedRwithRcellularRrespiration,RwhileRribosomesRareRinvolvedRwithRproteinRmanufacturin

g.RCytoplasmRisRaRfluidRfillingRthatRisRaRcomponentRofRtheRcell.

REF:R p.R2

,4. WhichRofRtheRfollowingRcanRremoveRproteinsRattachedRtoRtheRcell’sRbilayerRbyRdissolvingRth
eRlayerRitself?
a. PeripheralRmembraneRproteins
b. IntegralRmembraneRproteins
c. Glycoproteins
d. CellRadhesionRmolecules
ANS:R B
ProteinsRdirectlyRattachedRtoRtheRmembraneRbilayerRcanRbeRremovedRbyRtheRactionRofRintegralR
membraneRproteinsRthatRdissolveRtheRbilayer.RPeripheralRmembraneRproteinsRresideRatRtheRsurf
aceRwhileRcellRadhesionRmoleculesRareRonRtheRoutsideRofRtheRmembrane.RGlycoproteinRmarksR
cellsRandRdoesRnotRfloat.

REF:R p.R7

5. WhichRofRtheRfollowingRcanRbindRtoRplasmaRmembraneRreceptors?
a. Oxygen
b. Ribosomes
c. AmphipathicRlipids
d. Ligands

ANS:R D
LigandsRareRtheRonlyRspecificRmoleculesRthatRcanRbindRwithRreceptorsRonRtheRcellRmembrane.

REF:R p.R9

6. ARnurseRisRreviewingRaRreportRfromRaRpatientRwithRmetastaticRcancer.RWhatRalternationRinRth
eRextracellularRmatrixRwouldRs uNpUpRS
oRr t Rt hIe RdG
RNRT
iagnBo.
siC
sRofM
metastaticRcancer?
a. DecreasedRfibronectin
b. IncreasedRcollagen
c. DecreasedRelastin
d. IncreasedRglycoproteins
ANS:R A
OnlyRaRreducedRamountRofRfibronectinRisRfoundRinRsomeRtypesRofRcancerousRcells,RallowingRthe
mRtoRtravelRorRmetastasize.

REF:R p.R10

7. WhichRformRofRcellRcommunicationRisRusedRtoRrelateRtoRotherRcellsRinRdirectRphysicalRcontact?
a. CellRjunction
b. GapRjunction
c. Desmosome
d. TightRjunction

ANS:R A
CellRjunctionsRholdRcellsRtogetherRandRpermitRmoleculesRtoRpassRfromRcellRtoRcell.
GapRjunctionsRallowRforRcellularRcommunicationRbetweenRcells.RNeitherRdesmosomesRnorRtightRjun
ctionsRareRassociatedRwithRcellularRcommunication.

REF:R p.R11

, 8. PancreaticRbetaRcellsRsecreteRinsulin,RwhichRinhibitsRsecretionRofRglucagonRfromRneighborin
gRalphaRcells.RThisRactionRisRanRexampleRofRwhichRofRtheRfollowingRsignalingRtypes?
a. Paracrine
b. Autocrine
c. Neurohormonal
d. Hormonal
ANS:R A
ParacrineRsignalingRinvolvesRtheRreleaseRofRlocalRchemicalRmediatorsRthatRareRquicklyRtakenRup,
Rdestroyed,RorRimmobilized,RasRinRtheRcaseRofRinsulinRandRtheRinhibitionRofRtheRsecretionRofRglu

cagon.RNoneRofRtheRotherRoptionsRinvolveRsignalingRthatRisRassociatedRwithRaRlocalRchemicalRm
ediatorRlikeRinsulin.

REF:R p.R12

9. InRcellularRmetabolism,ReachRenzymeRhasRaRhighRaffinityRforRa:
a. solute.
b. substrate.
c. receptor.
d. ribosome.
ANS:R B
EachRenzymeRhasRaRhighRaffinityRforRaRsubstrate,RaRspecificRsubstanceRconvertedRtoRaRproductRo
fRtheRreaction.RCellularRmetabolismRisRnotRdependentRonRanRattractionRbetweenRanRenzymeRand
RanyRofRtheRremainingRoptions.




REF:R R p.R16

10. AnRathleteRrunsRaRmarathon,RafterRwhichRhisRmusclesRfeelRfatiguedRandRunableRtoRcontract.RThe
RathleteRasksRtheRnurseRwhyRthisRhappened.RTheRnurse’sRresponseRisRbasedRonRtheRknowledgeRth
atRtheRproblemRisRresultRofRaRdeficiencyRof:
a. GTP
b. AMP
c. ATP
d. GMP
ANS:R C
WhenRATPRisRdeficient,RimpairedRmuscleRcontractionRresults.RNoneRofRtheRotherRoptionsRareRin
volvedRinRmuscleRcontraction.

REF:R p.R16

11. WhichRphaseRofRcatabolismRproducesRtheRmostRATP?
a. Digestion
b. Glycolysis
c. Oxidation
d. CitricRacidRcycle
ANS:R D
WhileRsomeRATPRisRproducedRduringRtheRoxidationRandRglycolysisRphases,RmostRofRtheRATPRis