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ID:32173413
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页数:4页
时间:2019-02-01
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1、UnitOne1.Afullappreciationofthephysiologyofalivingorganismmustbebasedonasoundknowledgeofitsanatomy.Anatomydoesnotmerelystudytheseparationofparts,buttheaccuratedescriptionofthemorphologiesandfunctionsofdifferentorgans.2.Ourdailyfoodintakemustmatchrequirementsandanyexcessmustbeexcre
2、tedforbalancetobemaintained.3.Theprocessofstabilizationoftheinternalenvironmentiscalledhomeostasisandisessentialifthecellsofthebodyaretofunctionnormally.4.Humancellshavetheabilitytobreakdownlargemoleculestosmalleronestoliberatesufficientenergyfortheiractivities.5.Aslongasnormalcon
3、ditionsaremaintainedinthisinternalenvironment,thecellsofthebodycontinuetoliveandfunctionproperly.UnitTwo1.Biochemistryaskshowthethousandsofdifferentbiomoleculesinteractwitheachothertoconfertheremarkablepropertiesoflivingorganisms.2.Enzymesarecatalyststhatacceleratetheratesofbiolog
4、icalreactions.Eachenzymeisveryspecificinitsfoundationandactsonlyinaparticularmetabolicreaction.3.Oneofthemostfruitfulapproachestounderstandbiologicalphenomenahasbeentopurifyanindividualchemicalcomponent,suchasprotein,fromalivingorganismandtocharacterizeitschemicalstructureorcataly
5、ticactivity.4.Thechemicalprinciplesthatgovernthepropertiesofbiologicalmoleculesincludethecovalentbondingofcarbonwithitselfandwithotherelementsandthefunctionalgroupsthatappearincommonbiologicalmolecules,etc.5.ThebasicunitofDNAisalinearpolymeroffourdifferentmonomericsubunits,deoxyri
6、bonucleotides,arrangedinapreciselinearsequence.UnitFour1.Thescienceoftheeffectsonthebodyiscalledpharmacology,andthescientistswhostudyitarepharmacologists.Pharmacologyisnotasciencethatcanbestudiedonitsown,butthatcloselyrelatedtootherbranchesofscience.Pharmacologistsshouldnotonlyund
7、erstandhenormalprocessesthattakeplaceinthebody,butknowhowthefunctionsofthebodyareaffectedbydisease.2.Forphysiciansandmedicalstudents,thescopeofpharmacologyisnotsoexpansiveasitscommondefinition.Theclinicianisinterestedprimarilyindrugsthatareusefulintheprevention,diagnosis,andtreatm
8、entofhumandisease,orinthepreventi
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