Living organisms and non-living (inert) organisms-what does make the differences between thetwo?· Special atoms, chemicals, found only in living organisms?:Not distinguished by the chemical elements they contain:But by relative abundance of these elements andtheconnectiontheymakeeachother> What are the major atoms found in living organism?
Living organisms and non-living (inert) organisms —what does make the differences between the two? • Special atoms, chemicals, found only in living organisms? • Not distinguished by the chemical elements they contain • But by relative abundance of these elements and the connection they make each other What are the major atoms found in living organism?
[.plari'pdik]A small set of elements from the periodic table·Majorcomponents oflivingorganisms.. They are combined to form a large number of biomolecules that varyboth in structure and complexitv.■AMajorelements inlivingthings2HeCarbon10n6HydrogenBeBNeNitrogenSodium1234141811H16OxygenArMgMagnesiumNaPhosphorus[maeg'ni:ziam]2224252621293031323621233334B51929SulphurKScVMnFeAPotassiumZnGaKrChlorine[pa'taesiam]424547543X02414344464849505112373853SrMoPhPdCdSnSbXeRbNbTcRuAgIn15672ZW5肥787980BA85865573107181883*OsHfTaPtAuTPoAtB/RnCsBaHg8887104106107108109110111112113114115116117118105★*RfDbBhMtDSRgCnFrRaSgHsUutUuqUuhUusUupUuo*Lanthanides**ActinidesH
A small set of elements from the periodic table • Major components of living organisms. • They are combined to form a large number of biomolecules that vary both in structure and complexity. [ˌpɪəriˈɒdɪk] Carbon Nitrogen Oxygen Phosphorus Sulphur Chlorine Hydrogen Sodium Magnesium [mægˈniːziəm] Potassium [pəˈtæsiəm]
The periodic tablePresent in trace amounts in living organisms..They have vital rolesMajorelements inlivingthingsH10TraceelementsinlivingthingsNe1034日2DciAr5时36102834205eNF2324M2629202N8ScKr4742373元445助A647e10505128545338PdDOcdSbSrInSnXe56852H304W176771时790818288086ITPbAtAuBaOsHgRn881041051131141151161171181061091101171010811DbOHsUutUuhUusRaSgMDRoCUuoUupUuo+Lanthanides**ActinidesHX
The periodic table • Present in trace amounts in living organisms. • They have vital roles
BiologicalElementsMostabundant:C,N,O,HIsttierLess abundant:Ca,P,K,S,Cl,Na,Mg2nd tierA-TraceelementsBN81715/163rdand4thtiers14R9Z0V3576277829C2853Sameforall lifeforms
Same for all life forms
Prevalence of ElementsbyWeightHumanEarth'sElementsBodyCrust65%49%OxygenMake up > 95%oftheweightofCarbon18%<1%a human bodyPresentinlowor10%Hydrogen<1%traceamounts3%NitrogentraceCalcium2%3%Iron5%<0.05%Themajor8%Aluminum<0.001%components[aelje'miniem]Silicon26%trace['silrken: Carbon by itself represents 50% of desiccated living matter..Why carbon is so much needed in living organisms?
• Carbon by itself represents 50% of desiccated living matter. • Why carbon is so much needed in living organisms? Make up > 95% of the weight of a human body Present in low or trace amounts The major [ˌæljə’mɪniəm] components [ˈsɪlɪkən]