Video: Vim li cas thiaj yooj yim diffusion tseem ceeb?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Diffusion yog tseem ceeb rau cov kab mob vim nws yog cov txheej txheem uas muaj txiaj ntsig molecules nkag mus rau hauv lub cev hlwb thiab cov khoom pov tseg raug tshem tawm. Digested zaub mov molecules (amino acids, qabzib) txav mus rau ib tug concentration gradient los ntawm txoj hnyuv mus rau cov ntshav.
Ntawm no, qhov yooj yim diffusion ua li cas?
Yooj yim Diffusion Txhais. Yooj yim diffusion yog qhov txheej txheem los ntawm cov kuab tshuaj yog txav mus raws ib tug concentration gradient nyob rau hauv ib tug tov los yog hla ib tug semipermeable membrane. Yooj yim diffusion yog ua los ntawm kev ua ntawm hydrogen bonds tsim ntawm dej molecules thiab solutes.
Tsis tas li ntawd, puas yooj yim diffusion xav tau lub zog? A. Yooj yim diffusion ua tsis yog xav tau lub zog : yooj yim diffusion xav tau ib qhov chaw ntawm ATP. Yooj yim diffusion tuaj yeem tsuas yog txav cov khoom nyob rau hauv cov kev taw qhia ntawm ib tug concentration gradient; txhawb nqa nthuav tawm txav cov ntaub ntawv nrog thiab tawm tsam ib tug concentration gradient.
Dab tsi yog qhov tsim nyog rau kev yooj yim diffusion?
Yooj yim diffusion tsis xav tau lub zog thiab tshwm sim raws li qhov concentration gradient. Nyob rau hauv tib neeg lub cev, molecules, xws li dej, oxygen, carbon dioxide, ethanol thiab urea, kis ncaj qha los ntawm cell membrane mus rau hauv thiab tawm ntawm ib tug cell siv. yooj yim diffusion.
Yuav ua li cas diffusion pab lub cell?
Cells siv lub zog kom nquag thauj cov molecules tawm tsam tus txheeb ze concentration gradient. Kev thauj mus los yooj yim, lossis yooj yim nthuav tawm , rog ions thiab molecules los ntawm cell cov daim nyias nyias. Cov txheej txheem tswj osmotic tshuav nyiaj li cas thiab tiv thaiv cov cell los ntawm kev tawg los ntawm kev noj dej ntau dhau.
Pom zoo:
Dab tsi yog qhov txawv ntawm osmosis diffusion thiab yooj yim diffusion?
Osmosis kuj tshwm sim thaum dej txav ntawm ib lub cell mus rau lwm qhov. Kev yooj yim diffusion ntawm qhov tod tes tshwm sim thaum qhov nruab nrab nyob ib puag ncig ntawm lub cell yog nyob rau hauv siab concentration ntawm ions los yog molecules tshaj qhov chaw nyob rau hauv lub cell. Cov molecules txav los ntawm ib puag ncig nruab nrab mus rau hauv lub cell vim diffusion gradient
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?
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
Vim li cas thiaj yooj yim diffusion tsis yog hom kev thauj mus los?
Qhov sib txawv no yog tias kev thauj mus los xav tau lub zog, thaum uas yooj yim diffusion tsis xav tau lub zog. Lub zog uas nquag thauj siv yog ATP (adenosine triphosphate). Lub zog xav tau nyob rau hauv daim ntawv no ntawm kev thauj mus los vim hais tias cov khoom yuav tawm tsam cov concentration gradient
Ua li cas koj thiaj nrhiav tau cov tswv yim tseem ceeb?
Ib qho zoo tagnrho P ntawm lub nplhaib sib txuas R yog qhov tseem ceeb yog tias nws muaj ob yam khoom nram qab no: Yog tias a thiab b yog ob lub ntsiab lus ntawm R xws li lawv cov khoom ab isan element ntawm P, ces a yog P lossis b yog P, P tsis yog tag nrho lub nplhaib R