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Video: Lub zog twg tuav ob lossis ntau lub molecules ua ke?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Biology Tshooj 3 Lus Txhais
| A | B |
|---|---|
| compound | ib yam khoom uas ua los ntawm atoms ntawm ob los yog ntau tshaj cov khoom sib txawv koom nrog chemical bonds |
| molecule | Ib pawg ntawm atoms uas tau tuav ua ke los ntawm cov tshuaj muaj zog ( covalent bonds ); |
Ib yam li ntawd, lub zog zoo li cas tuav ob lub molecules ua ke?
Cov hydrogen daim ntawv cog lus yog ib qho ntawm cov muaj zog tshaj plaws kev sib txuas lus, tab sis tsis muaj zog dua li covalent lossis ib daim ntawv cog lus ionic. Hydrogen bonds Nws yog lub luag haujlwm rau tuav ua ke DNA, proteins, thiab lwm yam macromolecules.
Qhov thib ob, dab tsi yog lub zog sib txawv uas tuav cov khoom sib xyaw ua ke? Tshuaj daim ntawv cog lus yog zog uas tuav atoms ua ke ua tshuaj sib xyaw los yog molecules. Tshuaj daim ntawv cog lus suav nrog covalent, polar covalent, thiab ionic daim ntawv cog lus . Atoms uas zoo sib xws electronegativities qhia electrons ntawm lawv thiab txuas nrog covalent daim ntawv cog lus.
Kuj paub yog, dab tsi tuav ob lub molecules ua ke?
Cov ntawv cog lus ntawd tuav atoms ua ke ua form molecules hu ua covalent bonds. Lawv yog cov tawv heev thiab tsis yooj yim ua los yog tawg sib nrug. Nws siv lub zog los ua kom cov ntawv cog lus thiab lub zog tso tawm thaum cov ntawv cog lus tawg.
Dab tsi yog 4 hom kev sib cog lus?
4 Hom Tshuaj Bonds
- 1 Ionic daim ntawv cog lus. Ionic bonding cuam tshuam nrog kev hloov ntawm ib qho hluav taws xob, yog li ib lub atom tau txais ib qho hluav taws xob thaum ib lub atom poob ib qho hluav taws xob.
- 2 Covalent bond. Kev sib cog lus ntau tshaj plaws hauv cov organic molecules, covalent daim ntawv cog lus koom nrog kev sib koom ntawm electrons ntawm ob lub atoms.
- 3 Polar daim ntawv cog lus.
Pom zoo:
Yuav ua li cas hydrogen bonding ntawm cov dej molecules pab piav qhia dej lub peev xwm nqus tau ntau lub zog ua ntej evaporation?
Cov hydrogen bonds hauv dej tso cai rau nws nqus thiab tso tawm lub zog cua sov qeeb dua li ntau lwm yam khoom. Qhov kub thiab txias yog ib qho kev ntsuas ntawm qhov kev txav (kinetic zog) ntawm cov molecules. Raws li cov lus tsa suab nce, lub zog yog siab dua thiab yog li kub siab dua
Dab tsi yog lub zog ntawm attraction uas tuav atoms lossis ions ua ke?
Chemical bonds
Qhov twg ua rau ntau lub zog glycolysis lossis Krebs voj voog?
Lub voj voog Krebs tsim cov CO2 uas koj ua pa tawm. Cov theem no ua rau feem ntau ntawm lub zog (34 ATP molecules, piv rau tsuas yog 2 ATP rau glycolysis thiab 2 ATP rau Krebs lub voj voog)
Nyob rau theem twg S yog cov molecules tuav nyob rau hauv ib daim ntawv teev?
khov kho Ntawm no, nyob rau theem S twg yog cov molecules tuav nyob rau hauv cov duab meej? Khoom Ib yam li ntawd, qhov kub thiab txias cuam tshuam li cas rau theem hloov? Cov cua sov yog siv los rhuav tshem cov kev sib txuas ntawm cov dej khov molecules thaum lawv tig mus ua kua theem .
Qhov twg muaj zog nkag tau ntau dua alpha lossis beta?
Alpha hluav taws xob yog absorbed los ntawm lub thickness ntawm daim tawv nqaij los yog los ntawm ob peb centimeters ntawm huab cua. Beta radiation yog nkag mus ntau dua li alpha hluav taws xob. Nws tuaj yeem hla ntawm daim tawv nqaij, tab sis nws yog absorbed los ntawm ob peb centimeters ntawm lub cev nqaij daim tawv los yog ob peb millimeters ntawm txhuas