Vim li cas cov twj ion tseem ceeb?
Vim li cas cov twj ion tseem ceeb?

Video: Vim li cas cov twj ion tseem ceeb?

Video: Vim li cas cov twj ion tseem ceeb?
Video: Tshuaj theem vim li cas thiaj tau nqi ?/ Siv kho mob dab tsi?/paris polyphylla use for? 2024, Tej zaum
Anonim

Qhov no puas pab tau?

Yog · Tsis yog

Ib yam li ntawd, tib neeg nug, dab tsi yog ion twj siv rau?

Ion twj tso kua mis feem ntau siv hauv ultra-high nqus tsev vacuum (UHV), raws li lawv muaj peev xwm ncav cuag qhov kawg siab tshaj 10−11 mbar ua. Nyob rau hauv sib piv rau lwm yam UHV twj , xws li turbomolecular twj thiab diffusion twj , ion twj tsis muaj qhov txav thiab tsis siv roj.

Kuj Paub, cov twj ion puas xav tau lub zog? Cov protein pores no tsuas yog txav mus ions down lawv concentration gradient. Ion channels tau hais tias "passive" vim tsis yog zog (ATP) yog xav tau txhawm rau qhib cov protein, tsuas yog ligand lossis hloov pauv hauv qhov hluav taws xob. Ion twj tso kua mis Ntawm qhov tod tes, yog active proteins.

Tsis tas li ntawd, vim li cas ion thauj khoom tseem ceeb?

Ion Thauj . Kev thauj khoom ion yog heev tseem ceeb hauv kev ua haujlwm tseem ceeb ntawm txhua yam kabmob. Nws tso cai rau kev saib xyuas ntawm qhov zoo tshaj plaws ntawm K+, Na+, H+, Ca2+, thiab lwm yam ions , concentrations uas feem ntau txawv sharply los ntawm cov nyob rau hauv ib ncig ntawm cov xov xwm.

Dab tsi yog lub twj tso kua mis ion hauv biology?

Hauv biology , ib ion transporter (los yog ion twj ) yog transmembrane protein uas txav mus ions hla ib cov kab mob lom tiv thaiv lawv cov concentration gradient los ntawm kev thauj mus los.

Pom zoo:

Vim li cas thiaj tseem ceeb rau cov kws tshawb fawb nrhiav txoj hauv kev los npaj cov ntsiab lus?

Vim li cas thiaj tseem ceeb rau cov kws tshawb fawb nrhiav txoj hauv kev los npaj cov ntsiab lus?

Inventor: Dmitri Mendeleev

Vim li cas cov txheej txheem ntawm cov protein synthesis tseem ceeb rau lub neej?

Vim li cas cov txheej txheem ntawm cov protein synthesis tseem ceeb rau lub neej?

Protein synthesis yog cov txheej txheem tag nrho cov hlwb siv los ua cov protein, uas yog lub luag haujlwm rau tag nrho cov qauv ntawm tes thiab kev ua haujlwm. Proteins tseem ceeb hauv txhua lub hlwb thiab ua haujlwm sib txawv, xws li koom nrog cov pa roj carbon dioxide rau hauv qab zib hauv cov nroj tsuag thiab tiv thaiv cov kab mob los ntawm cov tshuaj phem

Vim li cas cov pa roj carbon monoxide tseem ceeb heev hauv cov tshuaj chemical?

Vim li cas cov pa roj carbon monoxide tseem ceeb heev hauv cov tshuaj chemical?

Cov khoom ntawm carbon ua rau nws lub caj qaum ntawm cov organic molecules uas tsim muaj sia nyob. Cov pa roj carbon monoxide yog ib qho khoom siv ntau yam vim tias nws tuaj yeem tsim plaub cov ntawv cog lus. Organic molecules tseem ceeb rau lub neej muaj xws li cov monomers me me nrog rau cov polymers loj

Vim li cas qhov tseem ceeb ntawm qhov tseem ceeb?

Vim li cas qhov tseem ceeb ntawm qhov tseem ceeb?

Thaum koj pom tus nqi kiag li hauv qhov teeb meem lossis qhov sib npaug, nws txhais tau hais tias txhua yam nyob hauv tus nqi tiag tiag yog qhov zoo. Cov txiaj ntsig tsis zoo feem ntau siv rau hauv cov teeb meem cuam tshuam nrog kev nyob deb thiab qee zaum siv nrog qhov tsis sib xws. Qhov ntawd yog qhov tseem ceeb uas yuav tsum nco ntsoov nws zoo li qhov deb ntawm xoom

Vim li cas cov nuj nqis tseem ceeb tseem ceeb thaum qhia txog kev ntsuas?

Vim li cas cov nuj nqis tseem ceeb tseem ceeb thaum qhia txog kev ntsuas?

Cov duab tseem ceeb yog qhov tseem ceeb los qhia qhov tseeb ntawm koj cov lus teb. Qhov no yog qhov tseem ceeb hauv kev tshawb fawb thiab engineering vim tias tsis muaj cov cuab yeej ntsuas tuaj yeem ua qhov ntsuas nrog 100% precision. Siv cov nuj nqis tseem ceeb tso cai rau tus kws tshawb fawb paub tias cov lus teb meej npaum li cas, lossis qhov tsis paub meej npaum li cas