Cov txheej txheem:

Hauv cov molecules lom neeg twg koj tuaj yeem pom hydrogen bonds?
Hauv cov molecules lom neeg twg koj tuaj yeem pom hydrogen bonds?

Video: Hauv cov molecules lom neeg twg koj tuaj yeem pom hydrogen bonds?

Video: Hauv cov molecules lom neeg twg koj tuaj yeem pom hydrogen bonds?
Video: Dab neeg Vauv tsis haum niam tais 2/6/2017 2024, Kaum ib hlis
Anonim

Piv txwv Hydrogen Bond

  • Hydrogen bonding tshwm sim nto moo tshaj plaws ntawm cov dej molecules.
  • Tib neeg DNA yog ib qho piv txwv nthuav txog ib daim ntawv cog lus hydrogen.
  • Hydroflouric thiab formic acids muaj ib hom tshwj xeeb ntawm hydrogen daim ntawv cog lus hu ua symmetric hydrogen bond.

Ntawm no, qhov twg hydrogen bonds pom nyob rau hauv biological molecules?

Qhov yooj yim piv txwv ntawm a hydrogen daim ntawv cog lus tuaj yeem yog pom hauv dej molecules . Ib dej molecule muaj ib qho oxygen atom txuas rau ob hydrogen atoms. A hydrogen daim ntawv cog lus tuaj yeem tsim ntawm ob molecules ntawm dej.

Tsis tas li ntawd, cov molecules dab tsi tuaj yeem tsim hydrogen bonds? Hydrogen daim ntawv cog lus tsuas yog tsim los ntawm peb lub ntsiab lus electronegative heev - fluorine, oxygen thiab nitrogen . Yog li, hydrogen bonding yog ua tau tsuas yog nyob rau hauv cov tebchaw uas cov hydrogen atom yog ncaj qha mus rau fluorine, oxygen los yog nitrogen.

Ua ke, nyob rau hauv cov organic molecules peb pom hydrogen bonding?

Hom kev sib cog lus no tuaj yeem tshwm sim hauv cov molecules inorganic xws li dej thiab hauv cov organic molecules zoo li DNA thiab cov proteins . Cov ntawv cog lus hydrogen yog lub luag haujlwm rau ntau yam tsis zoo ntawm lub cev thiab tshuaj lom neeg ntawm cov tebchaw ntawm N, O, thiab F.

Vim li cas hydrogen bonds tseem ceeb?

Hydrogen bonding yog tseem ceeb hauv ntau cov txheej txheem tshuaj. Hydrogen bonding yog lub luag hauj lwm rau dej cov kuab tshuaj tshwj xeeb muaj peev xwm. Hydrogen bonds tuav cov kab sib txuas ntxiv ntawm DNA ua ke, thiab lawv yog lub luag haujlwm rau kev txiav txim siab peb-dimensional qauv ntawm folded proteins nrog rau cov enzymes thiab cov tshuaj tiv thaiv.

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