Understanding pathophysiology 7th edition by huether mccance test bank

Understanding Pathophysiology 7th edition by Huether, McCance Test BankL
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atest Updated Examination Study Guide 2022
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Understanding Pathophysiology 7th edition by Huether, McCance Test Bank
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Chapterg1.gCellulargBiology

MULTIPLEgCHOICE

1. Agstudentgisgobservinggagcellgundergthegmicroscope.gItgisgobservedgtoghavegsupercoiledgDNAg
withghistones.gWhichgofgthegfollowinggwouldgalsogbegobservedgbygthegstudent?

a. Agsinglegcirculargchromosome
b. Agnucleus
c. Free-floatinggnucleargmaterial
d. Nogorganelles


ANS:gB

Thegcellgdescribedgisgageukaryoticgcell,gsogitghasghistonesgandgagsupercoiledgDNAgwithingitsgn
ucleus;gthus,gthegnucleusgshouldgbegobserved.

Agsinglegcirculargchromosomegisgcharacteristicgofgprokaryoticgcells,gwhichgdognotghaveghistones.

Free-
floatinggnucleargmaterialgdescribesgagprokaryoticgcell,gwhichgwouldgnotghavegagdistinctgnucleus.

Eukaryoticgcellsghavegmembranegboundedgcellulargcomponentsgcalledgorganelles.gNogorganellesgd
escribesgagprokaryoticgcell.

2. Agnursegisginstructinggthegstaffgaboutgcellulargfunctions.gWhichgcellulargfunctiongisgthegnursegd
escribinggwhengangisolatedgcellgabsorbsgoxygengandgusesgitgtogtransformgnutrientsgtogenergy?

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

,Understanding Pathophysiology 7th edition by Huether, McCance Test BankL
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atest Updated Examination Study Guide 2022
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ANS:gD

Thegabilitygofgthegcellgtogabsorbgoxygengrefersgtogthegcellsgfunctiongofgrespiration.

Thegabilitygofgthegcellgtogfunctiongwithingagsocietygofgcellsgrefersgtogitsgfunctiongofgc
ommunication.

Thegabilitygofgthegcellgtogtakegingnutrientsgrefersgtogthegcellsgfunctiongofgmetabolicgabsorption.

Thegabilitygofgthegcellgtogsynthesizegnewgsubstancesgandgsecretegthesegelsewheregrefersgtogthegcellsgf
unctiongofgsecretion.

3. AgeukaryoticgcellgisgundergoinggDNAgreplication.gIngwhichgregiongofgthegcellgwouldgmostgofgt
heggeneticginformationgbegcontained?

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


ANS:gC

Thegregiongofgthegcellgthatgcontainsggeneticgmaterial,gincludinggaglargegamountgofgribonucleicga
cid,gmostgofgthegDNA,gandgDNA-bindinggproteins,gisgthegnucleolus.

Thegmitochondriagisgthegsitegofgcellulargrespiration.

Thegribosomesgareginvolvedgingmanufacturinggofgproteinsgwithingthegcell.

Thegnucleusgcontainsgthegnucleolus,gandgitgisgthegnucleolusgthatgcontainsggeneticgmaterial.

4. Thegfluidgmosaicgmodelgforgbiologicgmembranesgdescribesgmembranegbehavior.gAccordinggtogt
hisgmodel,gwhichgofgthegfollowinggfloatgsinglygorgasgaggregatesgingthegfluidglipidgbilayer?

a. Peripheralgmembranegproteins
b. Integralgmembranegproteins

,Understanding Pathophysiology 7th edition by Huether, McCance Test BankL
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atest Updated Examination Study Guide 2022
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c. Glycoproteins
d. Cellgadhesiongmolecules


ANS:gB

Integralgmembranegproteinsgfloatgfreelygingthegfluidglipidgbilayer.

Peripheralgmembranegproteinsgaregnotgembeddedgingtheglayer,gbutgresidegatgthegsurface.g

Glycoproteinsgactgasgcellgsurfacegmarkers.

Cellgadhesiongmoleculesgaregongthegoutsidegofgthegmembranegandgallowgcellsgtoghookgtogether.

5. Whichgofgthegfollowinggcangbindgtogplasmagmembranegreceptors?

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


ANS:gD

Ligandsgaregspecificgmoleculesgthatgcangbindgwithgreceptorsgongthegcellgmembrane.g

Oxygengmovesgbygdiffusion;gitgdoesgnotgbindgtogreceptors.

Ribosomesgmakegproteinsgandgaregnotginvolvedgingbinding.g

Amphipathicglipidsgaregagportiongofgthegcellgmembrane.

6. Agnursegisgreviewinggagreportgfromgagpatientgwithgmetastaticgcancer.gWhatgfindinggwouldgs
upportgthegdiagnosisgofgmetastaticgcancer?gAlterationsgingextracellulargmatrixgthatginclude:

a. Decreasedgfibronectin
b. Increasedgcollagen
c. Decreasedgelastin

, Understanding Pathophysiology 7th edition by Huether, McCance Test BankL
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atest Updated Examination Study Guide 2022
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d. Increasedgglycoproteins


ANS:gA

Reducedgamountsgofgfibronectingaregfoundgingsomegtypesgofgcancerousgcells,gallowinggcancergc
ellsgtogtravel,gorgmetastasize.

Collagengprovidesgstrength,gandgitsgbreakdowngisgassociatedgwithgosteoarthritis,gnotgcancer.

Elastingisgfoundgingtheglungsgandgallowsgtissuesgtogstretch;gitgisgnotgassociatedgwithgcancerousgc
ells.

Decreased,gnotgincreased,gglycoproteinsgaregassociatedgwithgcancerousgcells.

7. Whichgformgofgcellgcommunicationgisgusedgtogrelategtogothergcellsgingdirectgphysicalgcontact?

a. Cellgjunction
b. Gapgjunction
c. Desmosomes
d. Tightgjunctions


ANS:gA

Cellgjunctionsgholdgcellsgtogethergandgpermitgmoleculesgtogpassgfromgcellgtogcell.

Gapgjunctionsgallowgcommunicationgfromgtheginsidegofgonegcellgtogtheginsidegofganother.g

Desmosomesgaregnotginvolvedgingcommunication,gbutgallowgcellsgtogholdgtogether.

Tightgjunctionsgaregbarriersgthatgpreventgmovementgofgsomegsubstancesgandgleakagesgofgothers.

8. Pancreaticgbetagcellsgsecreteginsulin,gwhichginhibitsgsecretiongofgglucagongfromgneighboringga
lphagcells.gThisgactiongisgangexamplegofgwhichgofgthegfollowinggsignalinggtypes?

a. Paracrine
b. Autocrine