雨课堂学堂在线学堂云《Science-based Food Safety Supervision（暨南）》单元测试考核答案

第1题1.FoodisasubstanceanediblesubstancetakenbymouthallaboveAa.substanceBb.

anediblesubstanceCc.takenbymouthDd.

allabove第2题1.FoodorprocessedfoodshouldbesafenutritionalenjoyablereasonablepriceallaboveAa.safeBb.nutritionalCc.enjoyableDd.

reasonablepriceEe.

allabove正确答案：E第3题3.FoodisprocessedfortotalfoodproductionshelflifeextensionconvenienceallaboveAa.totalfoodproductionBb.shelflifeextensionCc.

convenienceDd.allabove第4题4.Chinafoodindustryincludesmainsectionsoffoodprocessfoodprocessandfoodmanufacturefoodprocess,foodmanufactureandbeveragemanufacturefoodprocess,foodmanufacture,beveragemanufactureandtobaccomanufactureAa.foodprocessBb.foodprocessandfoodmanufactureCc.foodprocess,foodmanufactureandbeveragemanufactureDd.foodprocess,foodmanufacture,beveragemanufactureandtobaccomanufacture第5题5.Chinafoodindustrycurrentlyrankstheplaceofindustries.1st2nd3rd4thAa.1stBb.2ndCc.3rdDd.4th第6题6.Comparedwithfreshapple,applejuiceismorenutritionalmoresafemorechemicalsmoredirtyAa.morenutritionalBb.moresafeCc.

morechemicalsDd.moredirty第1题1.Whichofthefollowingisnotfood?ricetobaccocococolawineacrylamideAa.

riceBb.tobaccoCc.cococolaDd.wineEe.acrylamide正确答案：E第2题2.The“bigheadbaby”infantmilkpowderincidentdiscoveredinFuyang,Anhui,2003shouldbecharacterizedastheincidentoffoodsafetyfoodpoisoningfoodtoxificationfoodqualityAa.

foodsafetyBb.

foodpoisoningCc.foodtoxificationDd.foodquality第3题3.ThemelamineaddedinfantmilkpowderincidentdiscoveredinHebei2008isclassifiedintofoodqualityfoodsafetyfooddefensefoodnutritionAa.foodqualityBb.foodsafetyCc.

fooddefenseDd.foodnutrition第4题4.Asafoodpoisoningoutbreak,thenumberofpeoplesufferedshouldhavea.0b.1c.10d.>2Aa.0Bb.1Cc.10Dd.>2第5题5.Whichofthefollowingishazard?proteinmilkchemicalresiduepesticideresidueAa.

proteinBb.

milkCc.chemicalresidueDd.pesticideresidue第6题6.Whichofthefollowinghazardsareintentionalsource?E.coliinmeatSalmonellaineggLeadinpreservedduckeggMelamineinmilkpowderAa.

E.coliinmeatBb.SalmonellaineggCc.LeadinpreservedduckeggDd.MelamineinmilkpowderMultiplechoicequestions-chooseonefromfourtosix第1题1.Whichofthefollowingbacteriaisnotemergingpathogen?

E.coliO157

Listeriamonocytogens

MultipleresistantSalmonelletyphymuriumDT104

Campylobacteerjejuni

Vibriovulnificus

VibrioparahaemolyticusAa.E.coliO157Bb.

ListeriamonocytogensCc.

Multipleresistant

Salmonelletyphymurium

DT104Dd.

CampylobacteerjejuniEe.

VibriovulnificusFf.

Vibrioparahaemolyticus正确答案：F第2题2.Whichofthefollowinggroupsisnotespeciallysusceptibletofoodborneillness?a.Theveryyoung.b.Youngadults.c.Theelderly.d.Pregnantorlactatingwomen.Aa.Theveryyoung.Bb.

Youngadults.Cc.Theelderly.Dd.Pregnantorlactatingwomen.第3题3.Thecostoffoodborneillnesscanoccurintheformof:a.Medicalexpenses.b.Lossofsales.c.Legalfeesandfines.d.Alloftheabove.Aa.Medicalexpenses.Bb.Lossofsales.Cc.Legalfeesandfines.Dd.Alloftheabove.第4题4.CDCreportsshowthatinmostfoodborneillnessoutbreaks,mishandlingofthesuspectfoodoccurredwithinwhichofthefollowingstages?a.Transportation.b.Retailfoodestablishments.c.Foodmanufacturing.d.Foodproduction(farms,ranches,etc.).Aa.Transportation.Bb.Retailfoodestablishments.Cc.Foodmanufacturing.Dd.Foodproduction(farms,ranches,etc.).第5题5.Ifautensilissanitaryit:a.Isfreeofvisiblesoil.b.Hasbeensterilized.c.Isasingle-serviceitem.d.Hashaddisease-causinggermsreducedtosafelevels.Aa.Isfreeofvisiblesoil.Bb.Hasbeensterilized.Cc.Isasingle-serviceitem.Dd.Hashaddisease-causinggermsreducedtosafelevels.第6题6.HowdoestheFDAFoodCodeaffectindividualstatesandjurisdictions?a.TheFDAFoodCodeisafederallawthatmustbeenforcedbystateagencies.b.TheFDAFoodCoderegulatesfoodmanufacturingfacilities(processors)instatejurisdictions.c.Itprovidesamodelfornewlawsandrulesinstateandlocaljurisdictions.d.Itvalidatescurrentpractices.Aa.The

FDAFoodCode

isafederallawthatmustbeenforcedbystateagencies.Bb.The

FDAFoodCode

regulatesfoodmanufacturingfacilities(processors)instatejurisdictions.Cc.Itprovidesamodelfornewlawsandrulesinstateandlocaljurisdictions.Dd.Itvalidatescurrentpractices.Trueorfalsequestions第1题1.Chronictestisalife-timetestofcarcinogenic,mutagenicandteratogenicrisktogetadosageT[

]F[

]第2题2.PyrethrinswithLD50of200mg/kgismuchmoretoxicthanparathionwithLD50of3mg/kg.T[

]F[

]第3题3.Avianinfluenza(AV,H7N9)outbreakinSpring2013wasatypicalfoodsafetyissue.T[

]F[

]第4题4.EbolavirusoutbreakinWestAfrica2014wasnotafoodsafetyissue.T[

]F[

]第5题5.Yogurtisasafefoodbiologicallyandchemically.T[

]F[

]第6题6.SodiumnitriteisgenerallyusedduringcuringtoinhibitthedeathfulClostridiumbotulinum.T[

]F[

]第7题7.Pesticidescurrentlymainlyinvolvesthreetypesoforganophosphates(dichlorvos,methamidophos,phoxim,chlorpyrifos),carbamates(carbofuran,methomyl),andpyrethroid(cypermethrin).T[

]F[

]第8题8.PesticidesoforganophosphateandcarbamatetypesacttoparalyzeandkillinsectsbydecreasingacetylcholinesteraseT[

]F[

]第9题9.Methamidophoskillsinsectbyexternalcontactorthroughstomach.T[

]F[

]第10题10.Pyrethroidsiseffectiveman-madepesticide.T[

]F[

]Trueorfalsequestions第1题1.Mycotoxinsaresecondarymetabolicproductsoffungiwithcharacteristicsofnon-volatile,relativelylow-molecularweight.

T[

]F[

]第2题1.Aflatoxins,zearalenone,trichothecenes,ochratoxins,fumonisinsandergotalkaloidsarethemostcommonmycotoxinsproducedmostlybyAspergillus,Fusarium,Penicillium,Stachybotrys,andMyrothecium.T[

]F[

]第3题3.Mycotoxinsareusuallyeasilyaccumulatedincropsinthecropfield,duringgraintransportationandimproperstorageofgrainandfeed.T[

]F[

]第4题4.Mycotoxinsworkindividuallywithoutsynergismsamongmycotoxinssimultaneouslypresentinfeedsorfoods.T[

]F[

]第5题5.Mycotoxinsharmhumanhealthbythewayofcarcinogenicity,geno-toxicity,teratogenicity,nephrotoxicity,hepatotoxicity,reproductivedisordersandimmunosuppression.T[

]F[

]第6题6.Mycotoxinsaccumulateonfungalspores,cellfragments,substrates(nutrientsources)andhelpparasiticfungiinvadehosttissues.T[

]F[

]第7题7.AflatoxinsincludesB1,B2,G1,G2andM1,usuallyfoundtogetherinvariousfoodsandfeedsinvariousproportions;however,AflatoxinB1usuallypredominantandmosttoxic.T[

]F[

]第8题8.Aflatoxinsproduceorinduceacutenecrosis,cirrhosis,carcinomaofliverinanumberofanimalspecies.T[

]F[

]第9题9.Thesuccessfuldetoxificationstrategieswereshowninthepost-harveststage.T[

]F[

]第10题10.Mycotoxinsmaybeaccumulatedbyterrorismsandusedtopoisonmassmunicipalpeopleviadrinkwatersystem.T[

]F[

]Multiplechoicequestions-chooseonefromfourtosix第1题1.Bacteriaareoneofthemostcommoncausesoffoodbornediseaseinafoodestablishmentbecause:a.Underidealconditions,theycangrowveryrapidly.b.Bacteriaarefoundnaturallyinmanyfoods.c.Bacteriacanbeeasilytransferredfromonesourcetoanother.d.Alloftheabove.Aa.

Underidealconditions,theycangrowveryrapidly.Bb.

Bacteriaarefoundnaturallyinmanyfoods.Cc.

Bacteriacanbeeasilytransferredfromonesourcetoanother.Dd.

Alloftheabove.第2题2.Mostofthebacteriathatcausefoodborneillnessgrow:a.Withorwithoutoxygenatanidealtemperatureof98.6℉(39℃).b.Onlywithoutoxygenatanidealtemperatureof110℉(43℃).c.Onlywithoxygenatanidealtemperatureof110℉(43℃).d.Onlywithoutoxygenatanidealtemperatureof98.6℉(39℃).Aa.

Withorwithoutoxygenatanidealtemperatureof98.6℉

(39℃).Bb.

Onlywithoutoxygenatanidealtemperatureof110℉(43℃).Cc.

Onlywithoxygenatanidealtemperatureof110℉(43℃).Dd.

Onlywithoutoxygenatanidealtemperatureof98.6℉(39℃).第3题3.Whichofthefollowinggroupsofhazardsaremostlikelytocauseafoodbornediseaseoutbreak?a.Bacteriaandviruses.b.Parasitesandmolds.c.Vibriospp.andshigellaspp.d.Chemicalandphysicalhazards.A

a.

Bacteriaandviruses.Bb.

Parasitesandmolds.Cc.

Vibriospp.andshigellaspp.Dd.

Chemicalandphysicalhazards.第4题4.Whichofthefollowingbacteriaproduceatoxinthatismostlikelytocausedeathifconsumed?a.Campylobacterjejuni.b.Clostridiumbotulinum.c.Shigatoxin-producingEscherichiacoli.d.Listeriamonocytogenes.A

a.

Campylobacterjejuni.Bb.

Clostridiumbotulinum.Cc.Shigatoxin-producing

Escherichiacoli.Dd.

Listeriamonocytogenes.第5题5.

Somebacteriaformsporestohelpthem:a.Reproduce.b.Movemoreeasilyfromonelocationtoanother.c.Surviveadverseenvironmentalconditions.d.Growinhighacidfood.Aa.Reproduce.Bb.Movemoreeasilyfromonelocationtoanother.Cc.Surviveadverseenvironmentalconditions.Dd.Growinhighacidfood.第6题6.

Abiofilm

a.isacommunityofmicroorganismsattachedtoasurface.b.lookslikeafilmbuttherearelivemicroorganisminside.c.contraststo“planktonic”cells-individualcellssuspendedinafluidmediumd.hasexopolymericsubstance(EPS)withfreebacteriacells.e.alltheabove.Aa.

isacommunityofmicroorganismsattachedtoasurface.Bb.

lookslikeafilmbuttherearelivemicroorganisminside.Cc.

contraststo“planktonic”cells-individualcellssuspendedinafluidmediumDd.

hasexopolymericsubstance(EPS)withfreebacteriacells.Ee.

alltheabove.正确答案：E第7题7.Biofilmformationexperiences

a.initialattachmenttosurfaceduetofl;agellaandpili.b.anchoredtosurfacewithpilipolysaccharides.c.growthwithexopolymericsubstance(EPS).d.biofilmdtructurenetworkformwithwaterchannels.e.dissolusionwithquorumsensing.f.

alltheabove.Aa.

initialattachmenttosurfaceduetofl;agellaandpili.Bb.

anchoredtosurfacewithpilipolysaccharides.Cc.

growthwithexopolymericsubstance(EPS).Dd.

biofilmdtructurenetworkformwithwaterchannels.Ee.

dissolusionwithquorumsensing.Ff.

alltheabove.正确答案：F第8题8.Biofilmformsfor

a.resistancetoheat&cold.b.resistancetostarvation.c.resistancetodessication.d.resistancetotoxicsubstancese.survivelonglifef.

alltheaboveAa.

resistancetoheat&cold.Bb.

resistancetostarvation.Cc.

resistancetodessication.Dd.

resistancetotoxicsubstances.Ee.

survivelonglifeFf.

alltheabove正确答案：F第9题9.Quorumsensing(QS)

a.isauniquecharacteristicsofbiofilm.b.providescommunicationamongbacteriaviamoleculesreleasedintotheenvironment.c.regulatesgeneexpressionincludingvirulencegeneexpression.d.alltheabove.Aa.

isauniquecharacteristicsofbiofilm.Bb.

providescommunicationamongbacteriaviamoleculesreleasedintotheenvironment.Cc.

regulatesgeneexpressionincludingvirulencegeneexpression.Dd.

alltheabove.第10题10.Whichofthefollowingbacteriaareabletoformbiofilm.

a.Salmonellatyphib.Listeriamonocytegenesc.Cronobactersakazakiid.alltheabove.Aa.

SalmonellatyphiBb.

ListeriamonocytegenesCc.

CronobactersakazakiiDd.

alltheabove.Trueorfalsequestions第1题1.Acrylamideisanaturalnutrientinpotato.T[

]F[

]第2题2.Acrylamidewas1stconfirmedasafoodtoxininApril2002,byDr.Tareke,SwedishNationalFoodAdministration(NFA),StockholmUniversity..

T[

]F[

]第3题3.Acrylamideismainlyformedinbreakfastcerealsandcookies.T[

]F[

]第4题4.Acrylamideisformedbytwoprecursorsasparaginesandglucoseundertheconditionsof>185℃andlowerwatercontent.T[

]F[

]第5题5.Acrylamideisconsideredasaprocess-inducedfoodchemicalhazardduetoits

productionfollowingthefryingheatingprocessanditsmutagenicandcarcinogenicrisktohuman.T[

]F[

]第6题6.Boiledpotatodoesnotcontainacrylamideduetoitsnoasparaginesandglucose.T[

]F[

]第7题7.Friedsweetpotatochipsdonotcontainacrylamideduetoitsnoasparaginesandglucose.T[

]F[

]第8题8.Potatochipsshouldbebannedtoeatingasitcontainsacrylmide.T[

]F[

]第9题9.Vacuumfryingisanacceptablemethodtoreduceacrylamideformationwithoutaffectingitssensoryattributes.T[

]F[

]第10题10.Geneticmodifiedbreedingtechnologymightbepromisingforfreeacrylamidepotatochip.T[

]F[

]Multiplechoicequestions-chooseonefromfour第1题1.Whichoffollowingtypeofanalytesnormallycannotbeanalyzedbygaschromatography?A.gaseouscompoundsB.volatilecompoundsC.semivolatilecompoundsD.nonvolatilecompounds

Aa.gaseouscompoundsBb.volatilecompoundsCc.semivolatilecompoundsDd.nonvolatilecompounds第2题2.Fromwhichoneofthefollowinganalyticaltechniques,thediagramshownbelowwouldbeobtained?a.

Infraredspectroscopyb.HighperformanceliquidchromatographycMassspectrometryd.X-rayFluorescenceAa.

InfraredspectroscopyBb.HighperformanceliquidchromatographyCcMassspectrometryDd.X-rayFluorescence第3题3.Whichoneofthefollowingmethodswouldnotbesuitableforthedeterminationofinorganicanions,e.g.,F－,I－,NO3－andSO4－indrinkingwater?A.AtomicabsorptionspectrometryB.Ion-selectiveelectrodesC.IonexchangeliquidchromatographyD.IonchromatographyAa.AtomicabsorptionspectrometryBb.Ion-selectiveelectrodesCc.IonexchangeliquidchromatographyDd.Ionchromatography第4题4.Whatunitamongthoselistedbelowwouldbeusedtoexpresstheresultsofmicrobiologicalmeasurements?

A.mg/kgB.cfu/mLC.mole/LD.%,byvolumeAa.

mg/kgBb.cfu/mLCc.mole/LDd.%,byvolume第5题5.Whichoneofthefollowingstatementsiscorrectregardingreversephasehighperformanceliquidchromatography?A.Boththemobilephaseandthestationaryphasearepolar.B.Boththemobilephaseandthestationaryphasearenonpolar.C.Themobilephaseispolar,whilethestationaryphaseisnonpolar.D.Themobilephaseisnonpolar,whilethestationaryphaseispolar.Aa.Boththemobilephaseandthestationaryphasearepolar.Bb.Boththemobilephaseandthestationaryphasearenonpolar.Cc.Themobilephaseispolar,whilethestationaryphaseisnonpolar.Dd.Themobilephaseisnonpolar,whilethestationaryphaseispolar.第6题d.Whichoneofthefollowinganalyticaltechniquescannotbeusedforthedeterminationofheavymetals?A.AtomicabsorptionspectrometryB.OpticalemissionspectrometryC.InductivelycoupledplasmamassspectrometryD.NuclearmagneticresonancespectroscopyAa.AtomicabsorptionspectrometryBb.OpticalemissionspectrometryCc.InductivelycoupledplasmamassspectrometryDd.NuclearmagneticresonancespectroscopyTrueorfalsequestions第1题1.Biosensorscanbeusedforscreeningdetectionandquantitativedeterminationoftargetedanalytes.第2题2.Inabiosensor,itsselectivityisbasedonitsmechanismofbiologicalrecognition.Answer:T第3题3.Abiosensorisonlysuitablefortheanalysisofmacrobiologicalmolecules.第4题4.Animmunosensorutilizestheveryspecificbindingaffinityofantibodiesforaspecificcompoundorantigen.第5题5.Likeenzymes,aptamerscancatalyzethereactionofspecificsubstrateandareoftenimplementedinbiosensors.

第6题6.ElectrochemicaldeviceslikepHmetersaresuitableastransducersinbiosensorsbyconvertingchemicalinformationintoanelectricalsignal.第7题7.Piezoelectricbiosensorsgenerateopticalsignalsaftersensingchangesinmassonthesurfaceofacomponentmadeofquarts.

第8题8.Bloodglucosesensorsarebasedonthehighselectivebiorecognitionofantibodyandantigen.

第9题9.Electronicnosesarearraysofgassensorsusedtocharacterizecomplexsamplessuchasfood.第10题10.Surfaceplasmonresonancesensorsarecapableofanalyzingcrudesampleswithoutpreparation.Multiplechoicequestions-chooseonefromfourtofive第1题1.Bacterialgrowthcyclenormallyexperiencesthefollowingphasesinorder:lag,log,stationaryanddeclinelog,lag,stationaryanddeclinestationary,lag,log,anddeclinelog,declinestationaryandlag

Aa.lag,log,stationaryanddeclineBb.log,lag,stationaryanddeclineCc.stationary,lag,log,anddeclineDd.log,declinestationaryandlag第2题2.Pathogenicbacterialgrowthneedsa.nutrientsb.waterc.oxygend.appropriatetemperaturee.alltheaboveAa.nutrientsBb.waterCc.oxygenDd.appropriatetemperatureEe.alltheabove正确答案：E第3题1.FATTOMstandsfor:feed,acid,temperature,time,oxygenand

moisturefood,atom,temperature,time,oxygenand

moisturefood,acid,temperature,time,ozoneandmoisturefood,acid,temperature,time,oxygenand

moistureAa.feed,acid,temperature,time,oxygenand

moistureBb.food,atom,temperature,time,oxygenand

moistureCc.food,acid,temperature,time,ozoneandmoistureDd.food,acid,temperature,time,oxygenand

moisture第4题4.Pathogenicbacteriashouldbecontrolledbeforea.lagphaseb.logphasec.stationaryphased,declinephaseAa.lagphaseBb.logphaseCc.stationaryphaseDd.declinephase第5题5.Bacteriagrowbestwithinanarrowtemperaturerangecalledthetemperaturedangerzone.Thetemperaturedangerzoneisbetween:a.0°(-18℃)and220℉(104℃)b.0°(-18℃)and135℉(57℃)c.41°(5℃)and135℉(57℃)d.41°(5℃)and220℉(104℃)Aa.0°(-18℃)and220℉(104℃)Bb.0°(-18℃)and135℉(57℃)Cc.41°(5℃)and135℉(57℃)Dd.41°(5℃)and220℉(104℃)第6题BacteriathatcausefoodborneillnesswillonlygrowonfoodsthathaveapHat

oraboveandawateractivity(Aw)above.

a.

3.2;.85

b.4.6;.85

c.6.5;.80

d.8.0;.70Aa.

3.2;.85

Bb.4.6;.85

C

c.6.5;.80D

d.8.0;.70第7题7.Whichofthefollowingisnotconsideredapotentiallyhazardousfoodgroup?

a.Redmeats.b.Fishandshellfish.c.Poultryandeggs.d.Driedgrainsandspices.A

a.Redmeats.Bb.Fishandshellfish.Cc.Poultryandeggs.Dd.Driedgrainsandspices.第8题8.

Themosteffectivewaytocontrolthegrowthofbacteriainafoodestablishmentisbycontrolling:a.Timeandtemperature.b.pHandoxygenconditions.c.Temperatureandwateractivity.d.Timeandfoodavailability.Aa.Timeandtemperature.Bb.pHandoxygenconditions.Cc.Temperatureandwateractivity.Dd.Timeandfoodavailability.第9题9.

TheNo.1contributingfactorleadingtofoodborneillnessinfoodestablishmentsis:a.Improperholdingtemperatureoffoods.b.Crosscontamination.c.Poorpersonalhygiene.d.Inadequatecookingoffoods.Aa.Improperholdingtemperatureoffoods.Bb.Crosscontamination.Cc.Poorpersonalhygiene.Dd.Inadequatecookingoffoods.第10题10.Hurdletechnologyisanapproachtocontrolpathogenicbacterialgrowthbycontrollingfactor(s)ofonetwomanyappropriatenumbersAoneBb.twoCc.manyDd.appropriatenumbersMultiplechoicequestions-chooseonefromfourtosix第1题1.Theimpactsoffood-borneillnessmayinclude:a.morbidityandmortalityb.increasedhealthcarecostsc.lossofconsumerconfidenced.economiclossese.lostproductivitytoindustryf.alltheaboveAa.morbidityandmortalityBb.increasedhealthcarecostsCc.lossofconsumerconfidenceDd.economiclossesEe.lostproductivitytoindustryFf.alltheabove正确答案：F第2题2.Food-borneillnessoccurswhenapersonconsumesfoodcontaminatedwithbacteria,viruses,parasites,ortoxins,evidencedbya.sicknessb.foodconsumedc.foodwithhazardsd.alltheaboveAa.sicknessBb.foodconsumedCc.foodwithhazardsDd.alltheabove第3题3.Emergencyresponsetofood-borneillnessoutbreaksincludesactivitiesrelatedtothea.

determinationb.

investigationc.

mitigationd.

containmentofsuchoutbreaks,aswellasrelatedcommunicationactivities.e.

alltheabove

Aa.

determinationBb.

investigationCc.

mitigationDd.

containmentofsuchoutbreaks,aswellasrelatedcommunicationactivities.Ee.alltheabove正确答案：E第4题4.Food-borneillnessoutbreaksoccurredbecauseofa.takingawrongmedicineb.eatingadislikefoodc.groupofpeoplefeelillnessatthesametimeafterconsumingthesamefoodd.drinkingtoomuchwaterAa.

takingawrongmedicineBb.

eatingadislikefoodCc.

groupofpeoplefeelillnessatthesametimeafterconsumingthesamefoodDd.

drinkingtoomuchwater第5题5.Thefollowingemergencymeasuresshouldbetakenisafood–borneillnessoutbreaka.immediateclosureoffoodfactoriesthatmaybeimplicatedb.stopimportationofthefoodinquestionc.stopdistributionofthefoodinquestiond.withdrawingthefoodinquestione.recallingthefoodinquestionf.

alltheaboveAa.

immediateclosureoffoodfactoriesthatmaybeimplicatedBb.stopimportationofthefoodinquestionCc.

stopdistributionofthefoodinquestionDd.withdrawingthefoodinquestionEe.

recallingthefoodinquestionFf.

allt