Cov txheej txheem:
- Vim li cas dej thiaj txav mus rau qhov muaj kuab paug siab?
- Puas dej nkag mus rau cov kuab tshuaj?
- Yuav ua li cas thiaj ua tau ib qho diffuse?
- Yuav ua li cas 3 molecules tsis tau yooj yim dhau ntawm daim nyias nyias?
Video: Puas dej ntws mus rau cov kuab tshuaj?
2024 Tus sau: Fiona Howard | [email protected]. Kawg hloov kho: 2024-01-10 06:38
Cov ntsev thiab suab thaj hauv cov tshuaj yuav tawm mus deb ntawm thaj chaw uas muaj siab rau hauv cov tshuaj ib puag ncig. Qhov no yog hu ua yooj yim diffusion. Dej kuj diffuses deb ntawm thaj chaw ntawm cov dej dawb siab concentration mus rau thaj tsam ntawm ntau cov kua qaub.
Vim li cas dej thiaj txav mus rau qhov muaj kuab paug siab?
Osmosis yog txheej txheem thauj mus los thaum lub sijhawm cov dej txav los ntawm thaj chaw uas cov kuab tshuaj tsis tshua muaj siab mus rau thaj chaw uas lawv muaj ntau dua. Cov dej theem ntawm sab laug tam sim no qis dua cov dej theem ntawm sab xis, thiab cov kua dej nyob hauv ob qhov sib npaug sib npaug. …
Puas dej nkag mus rau cov kuab tshuaj?
Feem ntau cov kab mob lom neeg muaj ntau dua permeable rau dej dua li ions lossis lwm cov kuab tshuaj, thiab dej txav hla lawv los ntawm osmosis los ntawm kev daws cov kua qaub qis dua mus rau ib qho ntawm cov kua dej ntau dua..
Yuav ua li cas thiaj ua tau ib qho diffuse?
Ib lub hauv paus ntsiab lus ntawm kev sib kis yog tias cov molecules txav mus los thiab yuav kis tau zoo thoob plaws hauv nruab nrab yog tias lawv tuaj yeem ua tau. Txawm li cas los xij, tsuas yog cov khoom muaj peev xwm dhau los ntawm daim nyias nyias yuav diffuse los ntawm nws. Hauv qhov piv txwv no, solute tsis tuaj yeem sib kis los ntawm daim nyias nyias, tab sis dej tuaj yeem.
Yuav ua li cas 3 molecules tsis tau yooj yim dhau ntawm daim nyias nyias?
Cov plasma membrane yog xaiv tau permeable; hydrophobic molecules thiab me me polar molecules tuaj yeem sib kis los ntawm cov lipid txheej, tab sis ions thiab loj polar molecules tsis tuaj yeem.
Pom zoo:
Puas yog kas fes yog kuab los yog kuab tshuaj?
Thaum koj brew kas fes, koj tab tom tsim kev daws teeb meem. Cov me me ntawm cov hauv paus kas fes, los yog cov kuab tshuaj, yog dissolved hauv dej, cov kuab tshuaj . Puas yog khob kas fes yog kuab los yog kuab tshuaj? Cov qab zib uas koj ntxiv rau hauv khob kas fes yog lub npe hu ua tus soluteThaum cov kua dej no ntxiv rau cov kua, uas yog hu ua cov kuab tshuaj, cov txheej txheem dissolving pib.
Koj puas ntxiv cov kuab tshuaj rau cov kuab tshuaj?
Mov kom huv si kom yaj lub solute Thaum cov kuab tau yaj lawm, ntxiv cov kuab tshuaj uas tseem tshuav los ua cov tshuaj uas xav tau ntim thiab sib tov kom huv si. Piv txwv li, ua 0.5 Litres ntawm 0.5 molar NaCl: … Ua ib qho kev daws teeb meem ntawm ib qho concentration ntawm cov tshuaj hauv Tshuag yog hu ua dilution .
Thaum cov kuab tshuaj evaporates dab tsi tshwm sim rau qhov concentration ntawm cov tshuaj?
Qhov no txhais tau hais tias yog tias koj cov kuab tshuaj evaporating thiab qhov kub thiab txias tsis tu ncua, ces solute yuav precipitate tawm ntawm cov tshuaj. Qhov concentration ntawm cov tshuaj yuav tseem nyob rau ntawm nws qhov siab tshaj plaws raws li koj muaj kev txhawj xeeb nrog cov nyiaj solute yaj .
Qhov twg muaj kuab paug los ntawm cov dej ntws mus?
Yog tias tsis kho, cov pa phem no ntxuav ncaj qha rau hauv cov dej uas nqa los ntawm cov dej los ntawm nag thiab daus. Cov kab mob no tuaj yeem nkag mus rau hauv cov dej hauv av thiab tsom mus rau hauv cov kwj thiab cov dej ntws, thaum kawg tau nqa mus rau hauv dej thiab mus rau dej hiav txwv .
Cov kuab tshuaj puas yaj hauv dej?
Piv txwv. Qab zib, sodium chloride, thiab hydrophilic proteins yog txhua yam khoom uas dissolve hauv dej. Cov roj, rog, thiab qee cov kuab tshuaj organic tsis yaj hauv dej vim tias lawv yog hydrophobic . Vim li cas cov kuab tshuaj yaj hauv dej?
