Qhov Tseem Ceeb - Osmosis vs Diffusion hauv Biology
Osmosis yog cov txheej txheem ntawm spontaneous net txav ntawm cov kuab tshuaj molecules (dej molecules) los ntawm ib tug semi-permeable membrane mus rau thaj tsam ntawm ntau dua solute concentration. Nws zoo li sib npaug ntawm cov kua qaub concentration ntawm ob sab ntawm daim nyias nyias. Lub diffusion yog tag nrho cov net txav ntawm molecules los yog atoms los ntawm ib cheeb tsam ntawm ntau dua concentration nrog ib tug ntau dua tshuaj muaj peev xwm mus rau ib cheeb tsam ntawm qis concentration nrog tsawg dua tshuaj muaj peev xwm. Yog li, cov molecules yog txav mus rau qhov concentration gradient. Qhov sib txawv tseem ceeb ntawm osmosis thiab diffusion hauv biology yog tias osmosis yog cov txheej txheem ntawm kev txav ntawm cov kuab tshuaj molecules los ntawm ib nrab-permeable daim nyias nyias mus rau thaj tsam uas muaj cov kuab tshuaj ntau dua thaum diffusion yog cov txheej txheem ntawm kev txav ntawm ob qho tib si hnyav thiab cov kuab tshuaj molecules cia li concentration gradient. nyob rau hauv tej kev sib tov.
Osmosis yog dab tsi?
Nyob rau hauv Biology, osmosis yog cov txheej txheem ntawm kev txav ntawm cov khoom hla ib daim nyias nyias kom sib npaug ntawm cov ntsiab lus ntawm lwm yam khoom. Piv txwv li, nyob rau hauv ib tug lom cell, dej molecules tsiv mus nyob rau hauv lub semi-permeable plasma daim nyias nyias ntawm lub cell thiaj li sib npaug ntawm cov kua concentration (xws li: ntsev concentration) nyob rau hauv thiab tawm ntawm lub cell. Osmosis yog ib qho txheej txheem passive uas tshwm sim tsis muaj zog ntawm tes. Lub osmosis cuam tshuam nrog cov tshuaj biochemical.
Ib qho tshuaj yog tsim los ntawm ob ntu xws li cov kuab tshuaj thiab cov kuab tshuaj. Cov kev daws teeb meem yog tsim los ntawm kev sib cais cov kuab tshuaj hauv cov kuab tshuaj. Cov dej ntsev yog qhov piv txwv zoo tshaj plaws uas ntsev yog cov kuab thiab dej yog cov kuab tshuaj. Muaj peb hom kev daws teeb meem xws li isotonic, hypotonic thiab hypertonic. Hauv kev daws teeb meem isotonic, cov ntsiab lus solute hauv lub cell thiab sab nraud ntawm tes yog sib npaug. Nyob rau hauv cov xwm txheej no, tsis muaj kev txav ntawm cov kuab tshuaj molecules hla lub cell membrane. Thaum lub net txav zero, cov dej txav mus rau sab hauv thiab sab nraud ntawm tes hla cov plasma daim nyias nyias yuav sib npaug.
Nyob rau hauv cov tshuaj hypotonic, muaj cov kua qaub siab hauv lub cell dua li sab nraud ntawm tes. Yog li ntawd, dej molecules nkag mus rau hauv lub cell es tsis tawm hauv lub cell. Hypertonic hais txog qhov rov qab ntawm hypotonic. Muaj ntau dua concentration ntawm solute sab nraum lub cell tshaj nyob rau hauv lub cell. Hauv qhov no, ntau cov dej molecules yuav tawm hauv lub cell dua li nkag mus rau hauv lub cell thiaj li yuav txo cov kua dej tawm sab nraud.
Daim duab 01: Osmosis
Osmosis cuam tshuam rau cov nroj tsuag thiab tsiaj cov hlwb sib txawv. Hauv cov xwm txheej hypotonic, cov tsiaj hlwb tawg tawm vim tsis muaj cov phab ntsa ntawm tes. Tab sis nyob rau hauv cov xwm txheej hypertonic, ob qho tib si cov nroj tsuag thiab cov tsiaj hlwb zoo li yuav txo qis. Cov xwm txheej no qhia tau hais tias osmosis tseem ceeb npaum li cas rau cov nroj tsuag thiab tsiaj txhu rau lawv txoj sia nyob.
Diffusion yog dab tsi?
Diffusion yog cov txheej txheem ntawm kev txav mus los ntawm cov khoom (atoms, ions lossis molecules) los ntawm thaj tsam ntawm cov concentration siab dua mus rau thaj tsam ntawm qhov qis dua hauv txhua qhov sib xyaw. Particle txav mus txog rau thaum lub concentration ntawm ib yam khoom ua ib yam.
Daim duab 02: Diffusion
Tus nqi diffusion yog cuam tshuam los ntawm yam xws li kev ncua deb, thaj chaw loj, me me molecules, loj concentration sib txawv thiab siab kub nce. Cov molecules loj dua diffuse qeeb heev. Gases thiab me me molecules nyob rau hauv cov kua yuav tau yooj yim diffused los ntawm ib tug ntau dua concentration ib puag ncig mus rau ib tug qis concentration ib puag ncig ntawm tej molecule. Ob peb qhov piv txwv diffusion hauv cov kab ke lom neeg muaj raws li hauv qab no,
- Gas pauv ntawm alveoli hauv kev ua pa.
- Gas pauv rau photosynthesis hauv nplooj nplooj.
- Hloov pauv ntawm neurotransmitter "acetylcholine" ntawm lub synapse.
Dab tsi yog qhov zoo sib xws ntawm Osmosis thiab Diffusion hauv Biology?
- Ob txheej txheem yog koom nrog hauv kev txav mus los.
- Ob txheej txheem yog cov txheej txheem passive.
- Ob txheej txheem tsis siv cell lub zog molecules hu ua "ATP".
- Ob txheej txheem tseem ceeb heev rau kev ciaj sia ntawm tes.
- Nyob rau hauv ob txoj kev, cov khoom txav los ntawm ntau dua concentration mus rau qis concentration.
Qhov txawv ntawm Osmosis thiab Diffusion hauv Biology yog dab tsi?
Osmosis vs Diffusion |
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| Osmosis yog cov txheej txheem ntawm kev txav ntawm cov kuab tshuaj molecules los ntawm ib nrab-permeable daim nyias nyias mus rau thaj tsam nrog ntau dua solute concentration. | Diffusion yog cov txheej txheem ntawm kev txav ntawm cov molecules hauv qhov concentration gradient hauv txhua hom kev sib xyaw. |
| Hauv osmosis, tsuas yog hnyav (dej molecules) txav. | Nyob rau hauv diffusion, ob qho tib si solute thiab hnyav molecules tsiv. |
| Semi-permeable Membrane | |
| Nyob rau hauv osmosis, lub semi-permeable membrane koom nrog. | Nyob rau hauv diffusion, lub semi-permeable membrane tsis koom nrog. |
| Nyob rau hauv osmosis dej yog xav tau rau nws txav. | Nyob rau hauv kev sib kis, dej tsis xav tau rau nws txoj kev txav. |
| Concentration Gradient | |
| Osmosis ua raws li qhov nce siab concentration gradient. | Diffusion ua raws li qhov chaw qis qis qis qis. |
| Qhov tseem ceeb | |
| Lub osmosis yog qhov tseem ceeb los faib cov as-ham thoob plaws hauv lub xovtooj ntawm tes thiab tso tawm cov khoom pov tseg hauv metabolic. | Qhov kev nthuav dav yog qhov tseem ceeb los tsim lub zog los ntawm kev ua pa thiab photosynthesis. |
| txheej txheem | |
| Osmosis tshwm sim thaum dej txav ntawm sab hauv thiab tawm nyob ntawm seb cov kua dej ntau npaum li cas. | Diffusion tshwm sim hauv lub xeev gaseous lossis lub xeev ua kua hauv qhov concentration gradient. |
| Examples | |
| Kev o ntawm cov qe ntshav liab thaum raug dej tshiab, kev nqus dej los ntawm cov cag cov plaub hau yog qee qhov piv txwv ntawm osmosis. | Npaj tsw qab puv ib chav, ib tee ntawm cov zaub mov xim kis tawm mus uniformly xim ib khob dej yog ib co piv txwv ntawm diffusion |
Summary – Osmosis vs Diffusion in Biology
Osmosis yog cov txheej txheem ntawm kev txav mus los ntawm cov kuab tshuaj molecules los ntawm cov khoom siv semi-permeable mus rau thaj tsam uas muaj cov kuab tshuaj ntau dua. Nws zoo li sib npaug ntawm cov kua qaub concentration ntawm ob sab ntawm daim nyias nyias. Ntawm qhov tod tes, diffusion yog tag nrho cov net txav ntawm molecules los yog atoms los ntawm ib cheeb tsam ntawm ntau dua concentration mus rau ib cheeb tsam ntawm qis concentration. Yog li, cov molecules yog txav mus rau qhov concentration gradient. Qhov no yog qhov sib txawv ntawm osmosis thiab diffusion hauv biology.
Download the PDF Version of Osmosis vs Diffusion in Biology
Koj tuaj yeem rub tawm PDF version ntawm kab lus no thiab siv nws rau offline lub hom phiaj raws li daim ntawv ceeb toom. Thov download PDF version ntawm no Qhov txawv Ntawm Osmosis thiab Diffusion hauv Biology
