, Understanding Pathophysiology 7th Edition Test Bank questio
kj kj kj kj kj kj
ns and answers
kj kj
Chapterkj1.kjCellularkjBiology
MULTIPLEkjCHOICE
1. Akjstudentkjiskjobservingkjakjcellkjunderkjthekjmicroscope.kjItkjiskjobservedkjtokjhavekjsupercoiledkjDN
Akjwithkjhistones.kjWhichkjofkjthekjfollowingkjwouldkjalsokjbekjobservedkjbykjthekjstudent?
a. Akjsinglekjcircularkjchromosome
b. Akjnucleus
c. Free-floatingkjnuclearkjmaterial
d. Nokjorganelles
ANS:kjB
Thekjcellkjdescribedkjiskjakjeukaryotickjcell,kjsokjitkjhaskjhistoneskjandkjakjsupercoiledkjDNAkjwithinkjitskjnu
cleus;kjthus,kjthekjnucleuskjshouldkjbekjobserved.
Akjsinglekjcircularkjchromosomekjiskjcharacteristickjofkjprokaryotickjcells,kjwhichkjdokjnotkjhavekjhistones.
Free-
floatingkjnuclearkjmaterialkjdescribeskjakjprokaryotickjcell,kjwhichkjwouldkjnotkjhavekjakjdistinctkjnucleus
.
Eukaryotickjcellskjhavekjmembranekjboundedkjcellularkjcomponentskjcalledkjorganelles.kjNokjorganelleskjdes
cribeskjakjprokaryotickjcell.
2. Akjnursekjiskjinstructingkjthekjstaffkjaboutkjcellularkjfunctions.kjWhichkjcellularkjfunctionkjiskjthekjnur
sekjdescribingkjwhenkjankjisolatedkjcellkjabsorbskjoxygenkjandkjuseskjitkjtokjtransformkjnutrientskjtokjene
rgy?
a. Metabolickjabsorption
b. Communication
c. Secretion
d. Respiration
,ANS:kjD
Thekjabilitykjofkjthekjcellkjtokjabsorbkjoxygenkjreferskjtokjthekjcellskjfunctionkjofkjrespiration.
Thekjabilitykjofkjthekjcellkjtokjfunctionkjwithinkjakjsocietykjofkjcellskjreferskjtokjitskjfunctionkjofkjcommunica
tion.
Thekjabilitykjofkjthekjcellkjtokjtakekjinkjnutrientskjreferskjtokjthekjcellskjfunctionkjofkjmetabolickjabsorption.
Thekjabilitykjofkjthekjcellkjtokjsynthesizekjnewkjsubstanceskjandkjsecretekjthesekjelsewherekjreferskjtokjthekjcel
lskjfunctionkjofkjsecretion.
3. AkjeukaryotickjcellkjiskjundergoingkjDNAkjreplication.kjInkjwhichkjregionkjofkjthekjcellkjwouldkjmostkj
ofkjthekjgenetickjinformationkjbekjcontained?
a. Mitochondria
b. Ribosome
c. Nucleolus
d. Nucleus
ANS:kjC
Thekjregionkjofkjthekjcellkjthatkjcontainskjgenetickjmaterial,kjincludingkjakjlargekjamountkjofkjribonucleickj
acid,kjmostkjofkjthekjDNA,kjandkjDNA-bindingkjproteins,kjiskjthekjnucleolus.
Thekjmitochondriakjiskjthekjsitekjofkjcellularkjrespiration.
Thekjribosomeskjarekjinvolvedkjinkjmanufacturingkjofkjproteinskjwithinkjthekjcell.
Thekjnucleuskjcontainskjthekjnucleolus,kjandkjitkjiskjthekjnucleoluskjthatkjcontainskjgenetickjmaterial.
4. Thekjfluidkjmosaickjmodelkjforkjbiologickjmembraneskjdescribeskjmembranekjbehavior.kjAccordingkjt
okjthiskjmodel,kjwhichkjofkjthekjfollowingkjfloatkjsinglykjorkjaskjaggregateskjinkjthekjfluidkjlipidkjbilayer?
a. Peripheralkjmembranekjproteins
b. Integralkjmembranekjproteins
, c. Glycoproteins
d. Cellkjadhesionkjmolecules
ANS:kjB
Integralkjmembranekjproteinskjfloatkjfreelykjinkjthekjfluidkjlipidkjbilayer.
Peripheralkjmembranekjproteinskjarekjnotkjembeddedkjinkjthekjlayer,kjbutkjresidekjatkjthekjsurface.kjGlycop
roteinskjactkjaskjcellkjsurfacekjmarkers.
Cellkjadhesionkjmoleculeskjarekjonkjthekjoutsidekjofkjthekjmembranekjandkjallowkjcellskjtokjhookkjtogether.
5. Whichkjofkjthekjfollowingkjcankjbindkjtokjplasmakjmembranekjreceptors?
a. Oxygen
b. Ribosomes
c. Amphipathickjlipids
d. Ligands
ANS:kjD
Ligandskjarekjspecifickjmoleculeskjthatkjcankjbindkjwithkjreceptorskjonkjthekjcellkjmembrane.kjOx
ygenkjmoveskjbykjdiffusion;kjitkjdoeskjnotkjbindkjtokjreceptors.
Ribosomeskjmakekjproteinskjandkjarekjnotkjinvolvedkjinkjbinding.kjAmph
ipathickjlipidskjarekjakjportionkjofkjthekjcellkjmembrane.
6. Akjnursekjiskjreviewingkjakjreportkjfromkjakjpatientkjwithkjmetastatickjcancer.kjWhatkjfindingkjwou
ldkjsupportkjthekjdiagnosiskjofkjmetastatickjcancer?kjAlterationskjinkjextracellularkjmatrixkjthatkjincl
ude:
a. Decreasedkjfibronectin
b. Increasedkjcollagen
c. Decreasedkjelastin
kj kj kj kj kj kj
ns and answers
kj kj
Chapterkj1.kjCellularkjBiology
MULTIPLEkjCHOICE
1. Akjstudentkjiskjobservingkjakjcellkjunderkjthekjmicroscope.kjItkjiskjobservedkjtokjhavekjsupercoiledkjDN
Akjwithkjhistones.kjWhichkjofkjthekjfollowingkjwouldkjalsokjbekjobservedkjbykjthekjstudent?
a. Akjsinglekjcircularkjchromosome
b. Akjnucleus
c. Free-floatingkjnuclearkjmaterial
d. Nokjorganelles
ANS:kjB
Thekjcellkjdescribedkjiskjakjeukaryotickjcell,kjsokjitkjhaskjhistoneskjandkjakjsupercoiledkjDNAkjwithinkjitskjnu
cleus;kjthus,kjthekjnucleuskjshouldkjbekjobserved.
Akjsinglekjcircularkjchromosomekjiskjcharacteristickjofkjprokaryotickjcells,kjwhichkjdokjnotkjhavekjhistones.
Free-
floatingkjnuclearkjmaterialkjdescribeskjakjprokaryotickjcell,kjwhichkjwouldkjnotkjhavekjakjdistinctkjnucleus
.
Eukaryotickjcellskjhavekjmembranekjboundedkjcellularkjcomponentskjcalledkjorganelles.kjNokjorganelleskjdes
cribeskjakjprokaryotickjcell.
2. Akjnursekjiskjinstructingkjthekjstaffkjaboutkjcellularkjfunctions.kjWhichkjcellularkjfunctionkjiskjthekjnur
sekjdescribingkjwhenkjankjisolatedkjcellkjabsorbskjoxygenkjandkjuseskjitkjtokjtransformkjnutrientskjtokjene
rgy?
a. Metabolickjabsorption
b. Communication
c. Secretion
d. Respiration
,ANS:kjD
Thekjabilitykjofkjthekjcellkjtokjabsorbkjoxygenkjreferskjtokjthekjcellskjfunctionkjofkjrespiration.
Thekjabilitykjofkjthekjcellkjtokjfunctionkjwithinkjakjsocietykjofkjcellskjreferskjtokjitskjfunctionkjofkjcommunica
tion.
Thekjabilitykjofkjthekjcellkjtokjtakekjinkjnutrientskjreferskjtokjthekjcellskjfunctionkjofkjmetabolickjabsorption.
Thekjabilitykjofkjthekjcellkjtokjsynthesizekjnewkjsubstanceskjandkjsecretekjthesekjelsewherekjreferskjtokjthekjcel
lskjfunctionkjofkjsecretion.
3. AkjeukaryotickjcellkjiskjundergoingkjDNAkjreplication.kjInkjwhichkjregionkjofkjthekjcellkjwouldkjmostkj
ofkjthekjgenetickjinformationkjbekjcontained?
a. Mitochondria
b. Ribosome
c. Nucleolus
d. Nucleus
ANS:kjC
Thekjregionkjofkjthekjcellkjthatkjcontainskjgenetickjmaterial,kjincludingkjakjlargekjamountkjofkjribonucleickj
acid,kjmostkjofkjthekjDNA,kjandkjDNA-bindingkjproteins,kjiskjthekjnucleolus.
Thekjmitochondriakjiskjthekjsitekjofkjcellularkjrespiration.
Thekjribosomeskjarekjinvolvedkjinkjmanufacturingkjofkjproteinskjwithinkjthekjcell.
Thekjnucleuskjcontainskjthekjnucleolus,kjandkjitkjiskjthekjnucleoluskjthatkjcontainskjgenetickjmaterial.
4. Thekjfluidkjmosaickjmodelkjforkjbiologickjmembraneskjdescribeskjmembranekjbehavior.kjAccordingkjt
okjthiskjmodel,kjwhichkjofkjthekjfollowingkjfloatkjsinglykjorkjaskjaggregateskjinkjthekjfluidkjlipidkjbilayer?
a. Peripheralkjmembranekjproteins
b. Integralkjmembranekjproteins
, c. Glycoproteins
d. Cellkjadhesionkjmolecules
ANS:kjB
Integralkjmembranekjproteinskjfloatkjfreelykjinkjthekjfluidkjlipidkjbilayer.
Peripheralkjmembranekjproteinskjarekjnotkjembeddedkjinkjthekjlayer,kjbutkjresidekjatkjthekjsurface.kjGlycop
roteinskjactkjaskjcellkjsurfacekjmarkers.
Cellkjadhesionkjmoleculeskjarekjonkjthekjoutsidekjofkjthekjmembranekjandkjallowkjcellskjtokjhookkjtogether.
5. Whichkjofkjthekjfollowingkjcankjbindkjtokjplasmakjmembranekjreceptors?
a. Oxygen
b. Ribosomes
c. Amphipathickjlipids
d. Ligands
ANS:kjD
Ligandskjarekjspecifickjmoleculeskjthatkjcankjbindkjwithkjreceptorskjonkjthekjcellkjmembrane.kjOx
ygenkjmoveskjbykjdiffusion;kjitkjdoeskjnotkjbindkjtokjreceptors.
Ribosomeskjmakekjproteinskjandkjarekjnotkjinvolvedkjinkjbinding.kjAmph
ipathickjlipidskjarekjakjportionkjofkjthekjcellkjmembrane.
6. Akjnursekjiskjreviewingkjakjreportkjfromkjakjpatientkjwithkjmetastatickjcancer.kjWhatkjfindingkjwou
ldkjsupportkjthekjdiagnosiskjofkjmetastatickjcancer?kjAlterationskjinkjextracellularkjmatrixkjthatkjincl
ude:
a. Decreasedkjfibronectin
b. Increasedkjcollagen
c. Decreasedkjelastin
