Cov txheej txheem:
Video: Hauv cov molecules lom neeg twg koj tuaj yeem pom hydrogen bonds?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
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.
Pom zoo:
Qhov twg koj yuav pom hydrogen bonds hauv cov proteins?
Hauv cov qauv thib ob ntawm cov protein, hydrogen bonds tsim ntawm cov pob txha oxygens thiab amide hydrogens. Thaum qhov sib nrug ntawm cov amino acid residues koom nrog hydrogen daim ntawv cog lus tshwm sim tsis tu ncua ntawm txoj haujlwm kuv thiab kuv + 4, ib qho alpha helix yog tsim
Muaj pes tsawg atoms hauv cov duab molecule tuaj yeem tsim hydrogen bonds nrog dej?
Dr. Haxton hais rau nws cov chav kawm tias cov dej molecule tuaj yeem ua 4 hydrogen bonds, tag nrho lawv nyob rau hauv tib lub dav hlau raws li peb lub atoms
Puas yog cov ntsiab lus uas muaj cov tshuaj lom neeg zoo sib xws yuav pom nyob rau tib lub sijhawm lossis hauv tib pab pawg piav qhia koj cov lus teb?
Qhov no yog vim hais tias cov tshuaj muaj zog nyob ntawm tsis muaj valence electrons. Raws li nyob rau hauv ib pawg tag nrho cov ntsiab lus muaj tib yam tsis muaj valence electron uas yog vim li cas lawv muaj cov tshuaj zoo sib xws tab sis nyob rau hauv ib lub sij hawm tsis muaj valence electron sib txawv uas yog vim li cas lawv txawv nyob rau hauv chemical zog
Txoj cai thermodynamic twg hais tias koj Tsis tuaj yeem hloov 100 feem pua ntawm cov cua sov rau hauv cov khoom siv hluav taws xob ntawm cov lus teb xaiv?
Txoj Cai thib ob
Koj tuaj yeem pom cov hnub qub nyob qhov twg hauv DC?
Qhov Chaw Zoo Tshaj Plaws Mus Saib Hnub Qub Ze ze Washington, DC Smithsonian National Air And Space Museum. Independence Ave. ntawm 6th St., S.W. Rock Creek Nature Center Thiab Planetarium. 5200 Glover Road, N.W. Washington, DC 20015. Observatory Park. 925 Springvale Txoj Kev. Great Falls, VA 22066. C.M. Crockett Park. 10066 Rogues Txoj Kev. Midland, VA 22728. Sky Meadows State Park. 11012 Edmonds Txoj Kev