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Bio1201B: Exam Review.doc

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Department
Biology
Course
Biology 1202B
Professor
Richard Gardiner
Semester
Winter

Description
OriginsoflifeSpontaneousGenerationLivingmattercannotgeneratespontaneouslyfromnolivingmatterCellTheory1Allorganismscomposedofoneormorecells2Thecellisthesmallestunitthathasallthepropertiesoflife3CellsariseonlyfromthegrowthanddivisionofpreexistingcellsPolymersLargeorganicmoleculesmadeupofmanyrepeatingmonomersDNAproteinssaccharideslipidsetcNeedacatalysttocausethereactiontocreatepolymersProbiontsLipidspheresContainmacromoleculessotheyareprotectedandcanactinamicroenvironmentRNAfirstgeneticmaterialVeryversatilemoleculeMembranesPhospholipids MainmoleculeinamembraneisthephospholipidsphospholipidbilayermembranePolarheadhydrophilicwithnonpolartailhydrophobicfattyacidsFluidMosaicModel CreatedbySingerandNicolsonModelofmembraneFluidity MembranefluidityisinfluencedbytemperatureandbyitsconstituentsCoolingmembranesswitchfromafluidstatetoasolidstateasthephospholipidsaremorecloselypackedMembranesrichinunsaturatedfattyacidsaremorefluidthanthosedominatedbysaturatedfattyacidsTransport TransportProteins ActiveTransportrequiresenergy PassiveTransportnoenergyrequired Uniportsinglesolutecarriedbytransportprotein Symport2diffsolutescarriedatsametimeanddirectionbytransportprotein Antiport2diffsolute
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