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, Understanding Pathophysiology8th Edition Test Bank
UI UI UI UI




ChapterUI1.UICellularUIBiology

MULTIPLEUICHOICE

1. AUIstudentUIisUIobservingUIaUIcellUIunderUItheUImicroscope.UIItUIisUIobservedUItoUIhaveUIsupercoiled
UI DNAUIwithUIhistones.UIWhichUIofUItheUIfollowingUIwouldUIalsoUIbeUIobservedUIbyUItheUIstudent?

a. AUIsingleUIcircularUIchromosome
b. AUInucleus
c. Free-floatingUInuclearUImaterial
d. NoUIorganelles


ANS:UIB

TheUIcellUIdescribedUIisUIaUIeukaryoticUIcell,UIsoUIitUIhasUIhistonesUIandUIaUIsupercoiledUIDNAUIwithinUIitsU
I nucleus;UIthus,UItheUInucleusUIshouldUIbeUIobserved.

AUIsingleUIcircularUIchromosomeUIisUIcharacteristicUIofUIprokaryoticUIcells,UIwhichUIdoUInotUIhaveUIhisto
nes.

Free-
floatingUInuclearUImaterialUIdescribesUIaUIprokaryoticUIcell,UIwhichUIwouldUInotUIhaveUIaUIdistinctUInucle
us.

EukaryoticUIcellsUIhaveUImembraneUIboundedUIcellularUIcomponentsUIcalledUIorganelles.UINoUIorganell
esUIdescribesUIaUIprokaryoticUIcell.

2. AUInurseUIisUIinstructingUItheUIstaffUIaboutUIcellularUIfunctions.UIWhichUIcellularUIfunctionUIisUItheU
nurseUIdescribingUIwhenUIanUIisolatedUIcellUIabsorbsUIoxygenUIandUIusesUIitUItoUItransformUInutrient
I


sUItoUIenergy?

a. MetabolicUIabsorption
b. Communication
c. Secretion
d. Respiration

,ANS:UID

TheUIabilityUIofUItheUIcellUItoUIabsorbUIoxygenUIrefersUItoUItheUIcellsUIfunctionUIofUIrespiration.

TheUIabilityUIofUItheUIcellUItoUIfunctionUIwithinUIaUIsocietyUIofUIcellsUIrefersUItoUIitsUIfunctionUIofUIcomm
unication.

TheUIabilityUIofUItheUIcellUItoUItakeUIinUInutrientsUIrefersUItoUItheUIcellsUIfunctionUIofUImetabolicUIabsorpti
on.

TheUIabilityUIofUItheUIcellUItoUIsynthesizeUInewUIsubstancesUIandUIsecreteUItheseUIelsewhereUIrefersUItoUIth
eUIcellsUIfunctionUIofUIsecretion.

3. AUIeukaryoticUIcellUIisUIundergoingUIDNAUIreplication.UIInUIwhichUIregionUIofUItheUIcellUIwouldUI
mostUIofUItheUIgeneticUIinformationUIbeUIcontained?

a. Mitochondria
b. Ribosome
c. Nucleolus
d. Nucleus


ANS:UIC

TheUIregionUIofUItheUIcellUIthatUIcontainsUIgeneticUImaterial,UIincludingUIaUIlargeUIamountUIofUIribonuc
leicUIacid,UImostUIofUItheUIDNA,UIandUIDNA-bindingUIproteins,UIisUItheUInucleolus.

TheUImitochondriaUIisUItheUIsiteUIofUIcellularUIrespiration.

TheUIribosomesUIareUIinvolvedUIinUImanufacturingUIofUIproteinsUIwithinUItheUIcell.

TheUInucleusUIcontainsUItheUInucleolus,UIandUIitUIisUItheUInucleolusUIthatUIcontainsUIgeneticUImaterial.

4. TheUIfluidUImosaicUImodelUIforUIbiologicUImembranesUIdescribesUImembraneUIbehavior.UIAccordi
ngUItoUIthisUImodel,UIwhichUIofUItheUIfollowingUIfloatUIsinglyUIorUIasUIaggregatesUIinUItheUIfluidUIlipidUIb
ilayer?

a. PeripheralUImembraneUIproteins
b. IntegralUImembraneUIproteins

, c. Glycoproteins
d. CellUIadhesionUImolecules


ANS:UIB

IntegralUImembraneUIproteinsUIfloatUIfreelyUIinUItheUIfluidUIlipidUIbilayer.

PeripheralUImembraneUIproteinsUIareUInotUIembeddedUIinUItheUIlayer,UIbutUIresideUIatUItheUIsurface.UIGlyc

oproteinsUIactUIasUIcellUIsurfaceUImarkers.

CellUIadhesionUImoleculesUIareUIonUItheUIoutsideUIofUItheUImembraneUIandUIallowUIcellsUItoUIhookUItoget
her.

5. WhichUIofUItheUIfollowingUIcanUIbindUItoUIplasmaUImembraneUIreceptors?

a. Oxygen
b. Ribosomes
c. AmphipathicUIlipids
d. Ligands


ANS:UID

LigandsUIareUIspecificUImoleculesUIthatUIcanUIbindUIwithUIreceptorsUIonUItheUIcellUImembrane.UI

OxygenUImovesUIbyUIdiffusion;UIitUIdoesUInotUIbindUItoUIreceptors.

RibosomesUImakeUIproteinsUIandUIareUInotUIinvolvedUIinUIbindi

ng.UIAmphipathicUIlipidsUIareUIaUIportionUIofUItheUIcellUImemb

rane.

6. AUInurseUIisUIreviewingUIaUIreportUIfromUIaUIpatientUIwithUImetastaticUIcancer.UIWhatUIfindingUI
wouldUIsupportUItheUIdiagnosisUIofUImetastaticUIcancer?UIAlterationsUIinUIextracellularUImatrixUIt
hatUIinclude:

a. DecreasedUIfibronectin
b. IncreasedUIcollagen