UNDERSTANDING PATHOPHYSIOLOGY 7TH
x x
xEDITION BY HUETHER, MCCANCE TEST
x x x x
xBANK
xALL WELL SOLVED COMPLETE
x x x
x(QUESTIONS AND ANSWERS) SOLUTION
x x x
xIN THIS TEST BANK
x x x
,Chapter x1. xCellular xBiology
MULTIPLE xCHOICE
1. Astudent xis xobservinga xcellunder xthexmicroscope. xIt xis xobserved xto xhave xsupercoiled
xDNA xwith xhistones. xWhich xof xthe xfollowing xwould xalso xbe xobserved xby xthe xstudent?
a. Asinglexcircular xchromosome
b. A xnucleus
c. Free-floatingnuclear x material
d. No xorganelles
ANS:xB
Thexcellxdescribed xisxaxeukaryotic xcell, xso xit xhasxhistones xand xaxsupercoiled xDNAwithin xits
x nucleus; xthus, xthe xnucleus xshould xbe xobserved.
Asingle xcircular xchromosome xis xcharacteristic xofprokaryotic xcells, xwhichxdo xnot xhave xhistones.
Free-floatingxnuclear xmaterialdescribesxaxprokaryoticxcell,xwhich would not xhavexaxdistinct
mi mi
x nucleus.
Eukaryoticxcells xhave xmembranexbounded cellular xcomponentsxcalledxorganelles. xNoxorganelles
mi
x describes xa xprokaryotic xcell.
2. Axnurse xis xinstructing the xstaff xabout xcellular xfunctions. xWhich cellular xfunction xis xthe
m mi
nurse xdescribing xwhen xan xisolated xcell xabsorbs xoxygen xand xuses xit xto xtransform xnutrients
x
xto xenergy?
a. Metabolic xabsorption
b. Communication
c. Secretion
d. Respiration
,ANS:xD
The xabilityofxthe xcellxto xabsorbxoxygen xrefers xto xthe xcells x function xofxrespiration.
The xabilityofxthe xcellxto xfunction xwithin xa xsocietyofcells xrefers xto xits xfunctionxof xcommunication.
x The xabilityof xthe xcellxto xtake xin xnutrients xrefers xto xthe xcells xfunction xof xmetabolic xabsorption.
The xabilityofthe xcellxto xsynthesize xnew xsubstances xand xsecrete xthese xelsewhere xrefers xtoxthe xcells
x function xof xsecretion.
3. Aeukaryotic xcell xis xundergoing xDNAxreplication. xInxwhichxregion xofthe xcellwould xmost
x of xthe xgenetic xinformation xbe xcontained?
a. Mitochondria
b. Ribosome
c. Nucleolus
d. Nucleus
ANS:xC
The xregionofthe xcellthat xcontainsxgenetic xmaterial, xincluding a xlarge xamount xof ribonucleic
mi mi
x acid, xmost xof xthe xDNA, xand xDNA-binding xproteins, xis xthe xnucleolus.
The xmitochondria xis xthe xsitexofcellular xrespiration.
Thexribosomes xare xinvolved x in xmanufacturing xofproteins xwithin the xcell.mi
Thexnucleusxcontainsxthexnucleolus, xand xit x isxthexnucleolus xthat xcontainsxgenetic xmaterial.
4. The xfluid xmosaic xmodelforxbiologic xmembranesxdescribes xmembrane xbehavior.xAccording to mi
x this xmodel, xwhich xof xthe xfollowing xfloat xsingly xor xas xaggregates xin xthe xfluid xlipid
x bilayer?
a. Peripheralmembrane xproteins
b. Integral xmembrane xproteins
, c. Glycoproteins
d. Cell xadhesion xmolecules
ANS:xB
Integralmembranexproteins xfloat xfreelyxin the xfluid xlipid xbilayer.
mi
Peripheralmembranexproteinsxarexnot xembedded xinxthe xlayer, xbut xresidexatxthexsurface.
x Glycoproteins xact xas xcell xsurface xmarkers.
Cellxadhesion xmolecules xare xonthe xoutside xofthe xmembrane xand xallow xcells xto xhooktogether.
5. Whichofthe xfollowing xcanxbind xto x plasma xmembrane xreceptors?
a. Oxygen
b. Ribosomes
c. Amphipathicxlipids
d. Ligands
ANS:xD
Ligands xarespecific xmolecules xthat xcanxbind xwithreceptorsonthe xcell xmembrane. xOxygen
x moves xby xdiffusion; xit xdoes xnot xbind xto xreceptors.
Ribosomes xmakeproteinsandxarenot xinvolved xin binding. mi
x Amphipathic xlipids xare xa xportion xof xthe xcell
x membrane.
6. Anurse xisxreviewing xareport xfrom a xpatient xwith xmetastatic xcancer. xWhat xfinding
mi
would xsupportxthediagnosis xofmetastaticxcancer?xAlterations xin extracellular xmatrixxthat
x mi
include:
x
a. Decreased xfibronectin
b. Increased xcollagen
c. Decreased elastin
mi
x x
xEDITION BY HUETHER, MCCANCE TEST
x x x x
xBANK
xALL WELL SOLVED COMPLETE
x x x
x(QUESTIONS AND ANSWERS) SOLUTION
x x x
xIN THIS TEST BANK
x x x
,Chapter x1. xCellular xBiology
MULTIPLE xCHOICE
1. Astudent xis xobservinga xcellunder xthexmicroscope. xIt xis xobserved xto xhave xsupercoiled
xDNA xwith xhistones. xWhich xof xthe xfollowing xwould xalso xbe xobserved xby xthe xstudent?
a. Asinglexcircular xchromosome
b. A xnucleus
c. Free-floatingnuclear x material
d. No xorganelles
ANS:xB
Thexcellxdescribed xisxaxeukaryotic xcell, xso xit xhasxhistones xand xaxsupercoiled xDNAwithin xits
x nucleus; xthus, xthe xnucleus xshould xbe xobserved.
Asingle xcircular xchromosome xis xcharacteristic xofprokaryotic xcells, xwhichxdo xnot xhave xhistones.
Free-floatingxnuclear xmaterialdescribesxaxprokaryoticxcell,xwhich would not xhavexaxdistinct
mi mi
x nucleus.
Eukaryoticxcells xhave xmembranexbounded cellular xcomponentsxcalledxorganelles. xNoxorganelles
mi
x describes xa xprokaryotic xcell.
2. Axnurse xis xinstructing the xstaff xabout xcellular xfunctions. xWhich cellular xfunction xis xthe
m mi
nurse xdescribing xwhen xan xisolated xcell xabsorbs xoxygen xand xuses xit xto xtransform xnutrients
x
xto xenergy?
a. Metabolic xabsorption
b. Communication
c. Secretion
d. Respiration
,ANS:xD
The xabilityofxthe xcellxto xabsorbxoxygen xrefers xto xthe xcells x function xofxrespiration.
The xabilityofxthe xcellxto xfunction xwithin xa xsocietyofcells xrefers xto xits xfunctionxof xcommunication.
x The xabilityof xthe xcellxto xtake xin xnutrients xrefers xto xthe xcells xfunction xof xmetabolic xabsorption.
The xabilityofthe xcellxto xsynthesize xnew xsubstances xand xsecrete xthese xelsewhere xrefers xtoxthe xcells
x function xof xsecretion.
3. Aeukaryotic xcell xis xundergoing xDNAxreplication. xInxwhichxregion xofthe xcellwould xmost
x of xthe xgenetic xinformation xbe xcontained?
a. Mitochondria
b. Ribosome
c. Nucleolus
d. Nucleus
ANS:xC
The xregionofthe xcellthat xcontainsxgenetic xmaterial, xincluding a xlarge xamount xof ribonucleic
mi mi
x acid, xmost xof xthe xDNA, xand xDNA-binding xproteins, xis xthe xnucleolus.
The xmitochondria xis xthe xsitexofcellular xrespiration.
Thexribosomes xare xinvolved x in xmanufacturing xofproteins xwithin the xcell.mi
Thexnucleusxcontainsxthexnucleolus, xand xit x isxthexnucleolus xthat xcontainsxgenetic xmaterial.
4. The xfluid xmosaic xmodelforxbiologic xmembranesxdescribes xmembrane xbehavior.xAccording to mi
x this xmodel, xwhich xof xthe xfollowing xfloat xsingly xor xas xaggregates xin xthe xfluid xlipid
x bilayer?
a. Peripheralmembrane xproteins
b. Integral xmembrane xproteins
, c. Glycoproteins
d. Cell xadhesion xmolecules
ANS:xB
Integralmembranexproteins xfloat xfreelyxin the xfluid xlipid xbilayer.
mi
Peripheralmembranexproteinsxarexnot xembedded xinxthe xlayer, xbut xresidexatxthexsurface.
x Glycoproteins xact xas xcell xsurface xmarkers.
Cellxadhesion xmolecules xare xonthe xoutside xofthe xmembrane xand xallow xcells xto xhooktogether.
5. Whichofthe xfollowing xcanxbind xto x plasma xmembrane xreceptors?
a. Oxygen
b. Ribosomes
c. Amphipathicxlipids
d. Ligands
ANS:xD
Ligands xarespecific xmolecules xthat xcanxbind xwithreceptorsonthe xcell xmembrane. xOxygen
x moves xby xdiffusion; xit xdoes xnot xbind xto xreceptors.
Ribosomes xmakeproteinsandxarenot xinvolved xin binding. mi
x Amphipathic xlipids xare xa xportion xof xthe xcell
x membrane.
6. Anurse xisxreviewing xareport xfrom a xpatient xwith xmetastatic xcancer. xWhat xfinding
mi
would xsupportxthediagnosis xofmetastaticxcancer?xAlterations xin extracellular xmatrixxthat
x mi
include:
x
a. Decreased xfibronectin
b. Increased xcollagen
c. Decreased elastin
mi
