TEST BANK FOR PORTH'S ESSENTIALS OF
PATHOPHYSIOLOGY 5TH EDITION BY TOMMIE L.
NORRIS ALL CHAPTERS COVERED ISBN-10;
1975107195/ ISBN-13; 978-1975107192/ GRADED A+
,Porth's Essentials of Pathophysiology 5th edition T
q q q q q q
B_
1. Chapterq1
Althoughqtheqbasicqstructureqofqtheqcellqplasmaqmembraneqisqformedqbyqaqlipidqbilayer,qmo
stqofqtheqspecificqmembraneqfunctionsqareqcarriedqoutqby:
A) Boundqandqtransmembraneqproteins
B) Complex,qlongqcarbohydrateqchains
C) Surfaceqantigensqandqhormoneqreceptors
D) Aqgatingqsystemqofqselectiveqionqchannelsq
Ans:qA
Feedback:
Theqfunctionsqofqplasmaqmembraneqdependqonqtheqpresenceqofqproteinsqthatqareqboundqinqth
eqlipidqbilayerqandqsomeqthatqhaveqtheqabilityqtoqpassqfreelyqintoqandqoutqofqtheqcell.
Carbohydrateqchainsqformqaqcellqcoatqthatqsurroundsqtheqmembraneqandqthatqcontainqsurfa
ceqantigensqandqsurfaceqhormoneqreceptors.qSomeqionqchannelsqareqgatedqandqopenqonlyqw
henqtheqmembraneqpotentialqchangesqsignificantly.
2. Whichqdescribesqtheqfunctionqofqtheqnucleus?
A) Itqisqbasicallyqtheqsiteqofqproteinqsynthesisqinqtheqbody.
B) Itqcontainsqtheqgeneticqcodeqforqtheqindividual.
C) Itqisqtheqtransformerqofqcellularqenergy.
D) Itqinitiatesqtheqprocessqofqaerobicqmetabolism.q
Ans:qB
Feedback:
TheqnucleusqcontainsqDNA,qwhichqcontainsqtheqgeneticqcodeqthatqcontainsqtheqinformatio
nqthatqcontrolsqcells.qRibosomesqsynthesizeqprotein.qMitochondriaqtransformqorganicqcomp
oundsqintoqcellularqenergy.qMitochondriaqrequireqoxygenqforqaerobicqmetabolism,qusingqh
ydrogenqandqcarbonqcombinedqwithqoxygenqmoleculesqtoqformqcarbonqdioxideqandqwaterq
asqenergyqisqreleased.
3. Whichqofqtheqfollowingqaspectsqofqtheqfunctionqofqtheqnucleusqisqperformedqbyqribosomalq
RNAq(rRNA)?
A) CopyingqandqcarryingqDNAqinstructionsqforqproteinqsynthesis
B) Carryingqaminoqacidsqtoqtheqsiteqofqproteinqsynthesis
C) Providingqtheqsiteqwhereqproteinqsynthesisqoccurs
D) Regulatingqandqcontrollingqproteinqsynthesisq
Ans:qC
Feedback:
Thereqareqthreeqtypesqofqribonucleicqacidq(messengerqRNA,qribosomalqRNA,qandqtransferq
RNA)qthatqmoveqtoqtheqcytoplasmqandqcarryqoutqtheqactualqsynthesisqofqproteins.
MessengerqRNAq(mRNA)qcopiesqandqcarriesqtheqDNAqinstructionsqforqproteinqsynthesisqto
qtheqcytoplasm;qribosomalqRNAq(rRNA)qisqtheqsiteqofqproteinqsynthesis;qandqtransfer
Page 1
,RNAq(tRNA)qtransportsqaminoqacidsqtoqtheqsiteqofqproteinqsynthesisqforqincorporationqinto
qtheqproteinqbeingqsynthesized.
Page 2
, 4. Whichqaccuratelyqexplainsqtheqfunctionsqofqtheqorganellesqlysosomes?qThey:
A) Areqsacsqfilledqwithqenzymesqthatqbreakdownqandqremoveqforeignqsubstancesqandq
worn-outqcellqparts
B) Functionqinqassociationqwithqtheqendoplasmicqreticulumqtoqmodifyqproteinqendq
productsqandqpackageqthemqintoqsecretoryqgranulesqorqvesicles
C) Areqsmallqparticlesqofqnucleoproteinsqthatqareqinvolvedqinqtheqsynthesisqofqproteinsqt
hatqremainqinqtheqcellqasqcytoplasmicqstructuralqorqfunctionalqelements
D) Areqaqdynamicqsystemqofqinterconnectedqmembranousqtubesqthatqfunctionsqasqaqtu
bularqcommunicationqsystemqforqtransportingqvariousqsubstancesqfromqoneqpartqofq
theqcellqtoqanother
Ans:q A
Feedback:
Lysosomesqareqsacsqthatqareqfilledqwithqhydrolyticqenzymesqthatqaidqinqtheqprocessingqand
qremovalqofqunwantedqsubstancesqwithinqtheqcytoplasm.qTheqGolgiqapparatusqfunctionsqi
nqassociationqwithqtheqendoplasmicqreticulumqtoqmodifyqandqpackageqsubstancesqinqprepa
rationqforqsecretion,qwhereasqribosomesqareqsmallqparticlesqofqnucleoproteinsqthatqareqinv
olvedqinqtheqsynthesisqofqproteins.qTheqERqisqaqtubularqcommunicationqsystemqforqtranspo
rtingqvariousqsubstancesqfromqoneqpartqofqtheqcellqtoqanother.
5. Impairmentqinqtheqfunctionqofqperoxisomesqwouldqresultq in:
A) Inadequateqsitesqforqproteinqsynthesis
B) Anqinabilityqtoqtransportqcellularqproductsqacrossqtheqcellqmembrane
C) Insufficientqenergyqproductionqwithinqaqcell
D) Accumulationqofqfreeqradicalsqinqtheqcytoplasmq
Ans:qD
Feedback:
Peroxisomesqfunctionqinqtheqcontrolqofqfreeqradicals;qunlessqdegraded,qtheseqhighlyqunstab
leqchemicalqcompoundsqdamageqotherqcytoplasmicqmolecules.qPeroxisomesqdoqnotqdirectl
yqcontributeqtoqenergyqproduction,qproteinqsynthesis,qorqtransportqofqcellularqsecretions.
Page 3
PATHOPHYSIOLOGY 5TH EDITION BY TOMMIE L.
NORRIS ALL CHAPTERS COVERED ISBN-10;
1975107195/ ISBN-13; 978-1975107192/ GRADED A+
,Porth's Essentials of Pathophysiology 5th edition T
q q q q q q
B_
1. Chapterq1
Althoughqtheqbasicqstructureqofqtheqcellqplasmaqmembraneqisqformedqbyqaqlipidqbilayer,qmo
stqofqtheqspecificqmembraneqfunctionsqareqcarriedqoutqby:
A) Boundqandqtransmembraneqproteins
B) Complex,qlongqcarbohydrateqchains
C) Surfaceqantigensqandqhormoneqreceptors
D) Aqgatingqsystemqofqselectiveqionqchannelsq
Ans:qA
Feedback:
Theqfunctionsqofqplasmaqmembraneqdependqonqtheqpresenceqofqproteinsqthatqareqboundqinqth
eqlipidqbilayerqandqsomeqthatqhaveqtheqabilityqtoqpassqfreelyqintoqandqoutqofqtheqcell.
Carbohydrateqchainsqformqaqcellqcoatqthatqsurroundsqtheqmembraneqandqthatqcontainqsurfa
ceqantigensqandqsurfaceqhormoneqreceptors.qSomeqionqchannelsqareqgatedqandqopenqonlyqw
henqtheqmembraneqpotentialqchangesqsignificantly.
2. Whichqdescribesqtheqfunctionqofqtheqnucleus?
A) Itqisqbasicallyqtheqsiteqofqproteinqsynthesisqinqtheqbody.
B) Itqcontainsqtheqgeneticqcodeqforqtheqindividual.
C) Itqisqtheqtransformerqofqcellularqenergy.
D) Itqinitiatesqtheqprocessqofqaerobicqmetabolism.q
Ans:qB
Feedback:
TheqnucleusqcontainsqDNA,qwhichqcontainsqtheqgeneticqcodeqthatqcontainsqtheqinformatio
nqthatqcontrolsqcells.qRibosomesqsynthesizeqprotein.qMitochondriaqtransformqorganicqcomp
oundsqintoqcellularqenergy.qMitochondriaqrequireqoxygenqforqaerobicqmetabolism,qusingqh
ydrogenqandqcarbonqcombinedqwithqoxygenqmoleculesqtoqformqcarbonqdioxideqandqwaterq
asqenergyqisqreleased.
3. Whichqofqtheqfollowingqaspectsqofqtheqfunctionqofqtheqnucleusqisqperformedqbyqribosomalq
RNAq(rRNA)?
A) CopyingqandqcarryingqDNAqinstructionsqforqproteinqsynthesis
B) Carryingqaminoqacidsqtoqtheqsiteqofqproteinqsynthesis
C) Providingqtheqsiteqwhereqproteinqsynthesisqoccurs
D) Regulatingqandqcontrollingqproteinqsynthesisq
Ans:qC
Feedback:
Thereqareqthreeqtypesqofqribonucleicqacidq(messengerqRNA,qribosomalqRNA,qandqtransferq
RNA)qthatqmoveqtoqtheqcytoplasmqandqcarryqoutqtheqactualqsynthesisqofqproteins.
MessengerqRNAq(mRNA)qcopiesqandqcarriesqtheqDNAqinstructionsqforqproteinqsynthesisqto
qtheqcytoplasm;qribosomalqRNAq(rRNA)qisqtheqsiteqofqproteinqsynthesis;qandqtransfer
Page 1
,RNAq(tRNA)qtransportsqaminoqacidsqtoqtheqsiteqofqproteinqsynthesisqforqincorporationqinto
qtheqproteinqbeingqsynthesized.
Page 2
, 4. Whichqaccuratelyqexplainsqtheqfunctionsqofqtheqorganellesqlysosomes?qThey:
A) Areqsacsqfilledqwithqenzymesqthatqbreakdownqandqremoveqforeignqsubstancesqandq
worn-outqcellqparts
B) Functionqinqassociationqwithqtheqendoplasmicqreticulumqtoqmodifyqproteinqendq
productsqandqpackageqthemqintoqsecretoryqgranulesqorqvesicles
C) Areqsmallqparticlesqofqnucleoproteinsqthatqareqinvolvedqinqtheqsynthesisqofqproteinsqt
hatqremainqinqtheqcellqasqcytoplasmicqstructuralqorqfunctionalqelements
D) Areqaqdynamicqsystemqofqinterconnectedqmembranousqtubesqthatqfunctionsqasqaqtu
bularqcommunicationqsystemqforqtransportingqvariousqsubstancesqfromqoneqpartqofq
theqcellqtoqanother
Ans:q A
Feedback:
Lysosomesqareqsacsqthatqareqfilledqwithqhydrolyticqenzymesqthatqaidqinqtheqprocessingqand
qremovalqofqunwantedqsubstancesqwithinqtheqcytoplasm.qTheqGolgiqapparatusqfunctionsqi
nqassociationqwithqtheqendoplasmicqreticulumqtoqmodifyqandqpackageqsubstancesqinqprepa
rationqforqsecretion,qwhereasqribosomesqareqsmallqparticlesqofqnucleoproteinsqthatqareqinv
olvedqinqtheqsynthesisqofqproteins.qTheqERqisqaqtubularqcommunicationqsystemqforqtranspo
rtingqvariousqsubstancesqfromqoneqpartqofqtheqcellqtoqanother.
5. Impairmentqinqtheqfunctionqofqperoxisomesqwouldqresultq in:
A) Inadequateqsitesqforqproteinqsynthesis
B) Anqinabilityqtoqtransportqcellularqproductsqacrossqtheqcellqmembrane
C) Insufficientqenergyqproductionqwithinqaqcell
D) Accumulationqofqfreeqradicalsqinqtheqcytoplasmq
Ans:qD
Feedback:
Peroxisomesqfunctionqinqtheqcontrolqofqfreeqradicals;qunlessqdegraded,qtheseqhighlyqunstab
leqchemicalqcompoundsqdamageqotherqcytoplasmicqmolecules.qPeroxisomesqdoqnotqdirectl
yqcontributeqtoqenergyqproduction,qproteinqsynthesis,qorqtransportqofqcellularqsecretions.
Page 3
