Understanding Pathophysiology 7th Edition Test Bank | Huether & McCance

TestBBankBUnderstandingBPathophysiologyB7thBEdition




ChapterB01:BCellularBBiology

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, TestBBankBUnderstandingBPathophysiologyB7thBEdition
Huether & McCance: Understanding Pathophysiology, 7th Edition
B B B B B B




MULTIPLEBCHOICES


1. ABstudentBisBobservingBaBcellBunderBtheBmicroscope.BItBisBobserved toBhaveBsupercoiledBDNA
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wiBthBhistones.BWhichBofBtheBfollowingBwouldBalsoBbeBobservedBbyBtheBstudent?
a. ABsingleBcircularBchromosome
b. ABnucleus
c. Free-floatingBnuclearBmaterial
d. NoBorganelles

ANS:B B
TheBcellBdescribedBisBaBeukaryoticBcell,BsoBitBhasBhistonesBandBaBsupercoiledBDNABwithin itsn
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uBcleus;Bthus,BtheBnucleusBshouldBbeBobserved.BABsingleBcircularBchromosomeBcalledBaBprok
aryBoteBcontainsBfree-floatingBnuclearBmaterialBbutBhasBnoBorganelles.


REF:Bp.B2


2. ABnurseBisBinstructingBtheBstaffBaboutBcellularBfunctions.BWhichBcellularBfunctionBisBtheBnurseBd
eBscribingBwhenBanBisolatedBcellBabsorbsBoxygenBandBusesBitBtoBtransformBnutrientsBtoBenergy
?
a. MetabolicBabsorption
b. Communication
c. Secretion
d. Respiration

ANS:BD




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, TestBBankBUnderstandingBPathophysiologyB7thBEdition
TheBcell’sBabilityBtoBabsorbBoxygenBisBreferredBtoBasBrespirationBwhileBitsBcommunicationBabilityi
nBvolvesBmaintenanceBofBa steadyBdynamicBstate,BmetabolicBabsorption providesBnutrition,BandBs
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ecrBetionBallowsBforBtheBsynthesizing ofBnewBsubstances.
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REF:Bp.B2


3. ABeukaryoticBcellBisBundergoingBDNABreplication.BInBwhichBregionBofBtheBcellBwouldBmostBoft
hBeBgeneticBinformation beBcontained?
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a. Mitochondria
b. Ribosome
c. Nucleolus
d. NucleusBCytoplasm

ANS:B C
TheBregionBofBtheBcellBthat containsBgeneticBmaterial,BincludingBaBlargeBamountBofBribonucleicac
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Bid,Bmost ofBtheBDNA,Band DNA-
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bindingBproteins,BisBtheBnucleolus,BwhichBisBlocatedBwithintheBcell’sBnucleus.BMitochondriaBisB
aBssociatedBwithBcellularBrespiration,BwhileBribosomesBareBinvolvedBwithBproteinBmanufacturi
ng.BCytoplasm isBaBfluidBfillingBthatBisBaBcomponentBofBtheBcell.
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REF:Bp.B2

4. WhichBofBtheBfollowing canBremoveBproteinsBattachedBtoBtheBcell’sBbilayerBbyBdissolvingBthel
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aByerBitself?
a. PeripheralBmembraneBproteins
b. IntegralBmembraneBproteins
c. Glycoproteins
d. CellBadhesionBmolecules

ANS:B B
ProteinsBdirectlyBattached toBtheBmembraneBbilayerBcanBbeBremoved byBtheBactionBofBintegralm
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eBmbraneBproteinsBthatBdissolveBtheBbilayer.BPeripheralBmembraneBproteinsBresideBatBtheBsurfa
ceBwhileBcellBadhesionBmoleculesBareBonBtheBoutsideBofBtheBmembrane.BGlycoproteinBmarksBce
llsBaBndBdoesBnotBfloat.


REF:Bp.B7


5. WhichBofBtheBfollowingBcanBbind toBplasmaBmembraneBreceptors?
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, TestBBankBUnderstandingBPathophysiologyB7thBEdition
a. Oxygen
b. Ribosomes
c. AmphipathicBlipids
d. Ligands

ANS:B D
LigandsBareBtheBonlyBspecificBmoleculesBthatBcanBbindBwithBreceptorsBon theBcellBmembrane.
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REF:Bp.B9


6. ABnurseBis reviewingBaBreportBfromBaBpatientBwithBmetastaticBcancer.BWhatBalternation inBthee
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xBtracellularBmatrixBwouldBsuNppUoRrtSthIeNdG
iaT
gnBo.
si C
s o f Mmetastatic Bcancer?
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a. Decreased fibronectinP



b. IncreasedBcollagen
c. Decreased elastin P



d. Increased glycoproteins
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ANS:B A
OnlyBaBreducedBamountBofBfibronectinBisBfoundBinBsomeBtypesBofBcancerousBcells,Ballowingt
hBemBtoBtravelBorBmetastasize.


REF:Bp.B10


7. WhichBformBofBcellBcommunicationBis usedBtoBrelateBtoBotherBcellsBinBdirectBphysicalBcontact?
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a. CellBjunction
b. GapBjunction
c. Desmosome
d. Tight junction
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ANS:B A
CellBjunctionsBholdBcellsBtogetherBandBpermitBmoleculesBtoBpassBfromBcellBtoBcell.
Gap junctionsBallowBforBcellularBcommunicationBbetweenBcells.BNeitherBdesmosomesBnorBtightjuBncti
P




onsBareBassociatedBwithBcellularBcommunication.


REF:Bp.B11




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