Video: Vim li cas hydrogen bonds tseem ceeb heev rau cov qauv protein?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov hydrogen - daim ntawv cog lus kuj play a tseem ceeb heev luag hauj lwm hauv cov proteins ' qauv vim nws Stabalizes theem nrab, tertiary thiab quaternary qauv ntawm cov proteins uas tsim los ntawm alpha helix, beta nplooj ntawv, lem thiab loops. Cov hydrogen - daim ntawv cog lus txuas cov amino acids ntawm cov sib txawv polypeptide chains hauv proteins qauv.
Ua raws li qhov no, vim li cas hydrogen bonds tseem ceeb heev?
Kev tsim ntawm hydrogen bonds yog qhov tseem ceeb nyob rau hauv biological systems vim lub daim ntawv cog lus stabilize thiab txiav txim siab cov qauv thiab cov duab ntawm cov macromolecules loj xws li nucleic acids thiab cov proteins. Qhov no daim ntawv cog lus tseem ceeb heev hauv dej vim qhov no yog lub zog uas muaj nyob nruab nrab ntawm cov dej molecules los tuav lawv ua ke.
Kuj Paub, yog vim li cas nws tseem ceeb uas hydrogen bonds tsis muaj zog? Tsis muaj daim ntawv cog lus tej zaum yuav tawg yooj yim tab sis lawv yog heev tseem ceeb vim lawv pab txiav txim thiab stabilize cov duab ntawm lom molecules. Hydrogen bonds khaws cov DNA sib xyaw ua ke. Hydrogen bonds koom nrog hauv enzymic catalysis.
Yog li, vim li cas hydrogen bonds tseem ceeb heev rau cov qauv ntawm DNA?
Hydrogen bonds tuav cov pa nitrogenous hauv paus ua ke. Vim hydrogen bonds tsis muaj zog daim ntawv cog lus , ob kab DNA yooj yim sib cais-ib yam ntxwv uas yog tseem ceeb rau DNA cov muaj nuj nqi.
Dab tsi yog qhov tseem ceeb ntawm hydrogen bonds hauv dej?
Hydrogen bonds hauv dej muab ntau yam txiaj ntsig zoo rau dej : cohesion (tuav dej molecules ua ke), cov cua kub tshwj xeeb (nqus cua sov thaum tawg, tso cua sov thaum tsim; txo qhov kub hloov pauv), kub kub ntawm vaporization (ntau hydrogen bonds yuav tsum tau tawg thiaj li yuav evaporate dej )
Pom zoo:
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