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1、Chapter3:TheMoleculesofCells3.1.Propanolandisopropanolareisomers.ThismeansthattheyhaveA)thesamemolecularformulabutdifferentchemicalproperties.B)differentmolecularformulasbutthesamechemicalproperties.C)thesamemolecularformulaandthesamechemicalproperties.
2、D)thesamenumberofcarbonatomsbutdifferentnumberofoxygenandhydrogenatoms.E)thesamemolecularformula,butpropanolistheliquidformofthecompoundandisopropanolisthegaseousform.3.2.Youknowthattheoldcliché“oilandwaterdon’tmix”istrue.Why?A)Oilexhibitspolarityandwat
3、erdoesnot.B)Waterexhibitspolarityandoildoesnot.C)Oilishydrophilic.D)Waterishydrophobic.E)Oilisanorganiccompoundandwaterisn’t.3.3.Monosaccharidescanbejoinedtogetherbyaprocesscalleddehydrationsynthesis.Whichofthefollowingstatementsis/aretrueofthisprocess?
4、A)Onemonomerlosesahydrogenatom,andtheotherlosesahydroxylgroup.B)Electronsaresharedbetweenatomsofthejoinedmonomers.C)H2Oisformedasthemonomersarejoined.D)Covalentbondsareformedbetweenthemonomers.E)Alloftheabovearetrue.3.4.Theresultofdehydrationsynthesisca
5、nbereversedbyA)acondensationreaction.B)ahydrolysisreaction.C)digestion.D)polymerization.E)bothBandC.3.5.Whichlistbelowconsistsonlyofmoleculesthatareallpolymers?A)Sugars,aminoacids,nucleicacids,lipids.B)Proteins,lipids,nucleicacids,sugars.C)Proteins,lipi
6、ds,nuclearacids,polysaccharides.D)Proteins,lipids,nucleotides,sugars.E)Polysaccharides,lipidsaminoacids,nucleicacids.3.6.SucroseisformedA)fromtwoglucosemolecules.B)fromtwomonosaccharidesbyadehydrationsynthesis.C)whenionicbondslinktwomonosaccharides.D)wh
7、enwatermoleculesareaddedtotwomonosaccharides.E)A,BandC.3.7.GlycogenA)containsglucosemolecules.B)containsC,H,andOatoms.C)isapolysaccharide.D)isacarbohydrateanimalsusetostoreenergy.E)alloftheabove.3.8.AtriglycerideA)consistsofthreefattyacidsattachedtoglyc
8、erol.B)ishydrophobic.C)playsaroleinenergystorage.D)isatypeoffat.E)alloftheabove.3.9.CholesterolA)isasteroid.B)isnecessaryforhumanlife.C)ishydrophobic.D)containsoneOHgroup.E)alloftheabove.3.10.Themajortypeoflipidfoundincellmembran
