Video: Vim li cas cov dej molecules txav los ntawm qis mus rau siab concentration?
2024 Tus sau: Stanley Ellington | [email protected]. Kawg hloov kho: 2023-12-16 00:17
Lub diffusion ntawm tej kua, gas molecules los ntawm qis concentration rau siab concentration ntawm solutes uas yog yooj yim los ntawm lub xub ntiag ntawm semi-permeable membrane yog hu ua 'Osmosis'. Cov dej molecules txav los ntawm qis dua osmotic siab rau qhov siab dua osmotic siab cheeb tsam.
Tsis tas li ntawd, cov dej puas txav los ntawm qhov qis mus rau qhov muaj kuab paug siab?
Osmosis: Hauv osmosis, dej ib txwm txav los ntawm ib cheeb tsam ntawm siab dua dej concentration rau ib ntawm qis concentration . Hauv daim duab qhia, tus daws tsis tuaj yeem dhau los ntawm kev xaiv permeable membrane, tab sis cov dej ua tau.
Tsis tas li ntawd, qhov siab concentration ntawm dej txhais li cas? Cov dej concentration tuaj yeem xav txog qhov kev faib ua feem ntawm kev daws teeb meem uas yog dej . Solutions nrog a siab concentration ntawm solute molecules, xws li qab zib los yog ntsev, muaj tsawg concentration ntawm dej molecules thiab vice versa.
Raws li txoj cai, dab tsi txav los ntawm qis mus rau siab concentration?
Diffusion yog ib qho kev txav ntawm cov khoom los ntawm ib cheeb tsam ntawm siab concentration mus rau ib cheeb tsam ntawm qis concentration . Osmosis yog ib qho kev txav txav ntawm cov dej nyob thoob plaws lub semipermeable membrane los ntawm ib cheeb tsam ntawm qis daws concentration mus rau ib tug ntau concentrated tov, nce a concentration gradient.
Puas yog hypertonic qis mus rau siab concentration?
Hypertonic : Kev daws nrog cov siab dua concentration ntawm solutes. Hypotonic: Kev daws nrog cov qis concentration ntawm solutes.
Pom zoo:
Cov txheej txheem dab tsi txhawb kev txav txav txav?
Shear stress. Grain orientations hais txog kev siv kev ntxhov siab yog random. Lub dislocation motion tshwm sim nyob rau hauv lub pliaj systems nrog zoo orientation (piv txwv li hais tias nrog siab tshaj plaws daws shear stress). Cov yas loj dua deformation sib haum rau elongation ntawm cov nplej raws li kev coj ua ntawm kev ntxhov siab
Thaum cov molecules txav mus rau lawv cov concentration gradient?
Concentration gradients. Ib qho concentration gradient tshwm sim thaum lub concentration ntawm cov ntsiab lus siab dua nyob rau hauv ib cheeb tsam dua lwm qhov. Nyob rau hauv passive thauj, hais yuav diffuse down ib tug concentration gradient, los ntawm cov cheeb tsam ntawm siab concentration mus rau cov cheeb tsam ntawm qis concentration, mus txog rau thaum lawv sib npaug spaced
Lub hauv paus ntsiab lus twg piav qhia tias vim li cas AFC poob qis thaum cov zis nce ntxiv cov ntsiab lus piav qhia vim li cas AVC nce ntxiv thaum cov zis nce ntxiv?
AFC poob qis vim qhov tso zis ntau ntxiv vim muaj kev sib kis. Tus nqi ruaj khov yog kis mus rau ntau dua thiab ntau dua units ntawm cov khoom tso tawm raws li cov zis ntau ntxiv. AVC nce raws li cov zis nce vim qhov txo qis rov qab los. Vim qhov txo qis rov qab mus rau kev ua haujlwm, nws raug nqi ntau dua los tsim txhua chav ntxiv ntawm cov zis
Yuav ua li cas tshwm sim thaum lub concentration ntawm qabzib nyob rau hauv cov dej sab nraum lub cell yog siab tshaj qhov concentration nyob rau hauv?
Yog hais tias qhov concentration ntawm qabzib nyob rau hauv dej sab nraud ntawm lub cell yog siab tshaj qhov concentration hauv, dej yuav nyiam tawm hauv lub cell los ntawm osmosis. c. Cov piam thaj yuav zoo li nkag mus rau hauv lub cell los ntawm osmosis
Cov nplooj saum npoo ntawm thaj chaw cuam tshuam li cas rau kev txav ntawm cov dej los ntawm cov nroj tsuag?
Vim tias cov dej evaporates los ntawm ntau lub stomata ntawm nplooj nplooj, tus nqi ntawm transpiration yog ncaj qha cuam tshuam rau thaj chaw saum npoo