Qhov Tseem Ceeb Qhov txawv - Endosmosis vs Exosmosis
Nyob rau hauv cov ntsiab lus ntawm kev txav ntawm cov dej hauv cov kab ke lom neeg, osmosis siv qhov chaw tseem ceeb. Nws yog cov txheej txheem uas dej txav mus thoob lub cell membrane raws li cov dej muaj peev xwm gradient uas tau tsim nyob thoob plaws cytosol ntawm lub cell thiab ib puag ncig ib puag ncig. Osmosis yog cov txheej txheem ntawm passive diffusion. Nyob ntawm qhov kev taw qhia ntawm kev txav ntawm dej, osmosis yog faib ua ob pawg; endosmosis thiab exosmosis. Hauv endosmosis, dej txav mus rau hauv lub cell ntawm lub cell membrane. Hauv exosmosis, dej txav tawm ntawm lub cell ntawm lub cell membrane. Qhov no yog qhov sib txawv tseem ceeb ntawm endosmosis thiab exosmosis.
Dab tsi yog Endosmosis?
Nyob rau hauv endosmosis, kev txav ntawm cov dej molecules tshwm sim los ntawm ib puag ncig ib puag ncig mus rau hauv lub cell vim muaj qhov sib txawv ntawm cov dej muaj peev xwm ntawm cov cell membrane. Cov dej muaj peev xwm ntawm ib puag ncig ib puag ncig yog siab dua li cov dej muaj peev xwm hauv cov cell hauv endosmosis. Hauv cov ntsiab lus yooj yim, endosmosis yog kev txav ntawm cov dej mus rau hauv lub cell los ntawm ib qho semi-permeable cell membrane. Hais txog cov kuab tshuaj concentration, cell cytosol muaj ntau dua solute concentration tshaj lub cell nyob ib puag ncig. Qhov sib txawv ntawm cov dej muaj peev xwm thiab qhov sib txawv ntawm cov kuab tshuaj muaj feem cuam tshuam nrog kev tsim kom muaj peev xwm gradient uas ua rau endosmosis.
Endosmosis tuaj yeem tshwm sim thaum lub cell muab tso rau hauv cov tshuaj hypotonic. Ib qho tshuaj hypotonic txhais tau hais tias cov tshuaj uas muaj qhov qis osmotic siab nrog rau lwm cov tshuaj. Ib qho kev daws teeb meem hypotonic muaj qhov tsis tshua muaj kuab lom thiab muaj peev xwm dej siab. Endosmosis ua rau lub cell o. Cov mob no yog hu ua cell turgidity. Endosmosis yog ib qho tshwm sim tseem ceeb hauv cov ntsiab lus ntawm kev nqus dej los ntawm cov hauv paus hniav.
Daim duab 01: Endosmosis ntawm cov qe ntshav liab
Kev nqus dej capillary uas muaj nyob hauv av los ntawm cov hauv paus plaub hau thiab txav dej mus rau hauv cov hlab ntsha xylem yog cov piv txwv zoo tshaj plaws rau endosmosis. Yog hais tias lub xovtooj tau ntsib kev tsis tu ncua endosmosis nws ua rau cell tawg. Tab sis ib txwm cellular mechanisms tiv thaiv qhov tshwm sim ntawm xws li phenomena.
Exosmosis yog dab tsi?
Nyob rau hauv exosmosis, dej uas muaj nyob rau hauv lub cytosol yog tsiv tawm ntawm lub cell vim muaj dej muaj peev xwm gradient ua nyob rau hauv lub cell thiab ib puag ncig ib puag ncig. Ntawm no, lub peev xwm dej ntawm lub xov tooj ntawm tes tau hais tias yuav siab dua rau ib puag ncig ib puag ncig. Yog li ntawd, dej txav los ntawm qhov chaw muaj peev xwm dej siab dua (cell cytosol) mus rau qhov chaw qis dua (kev daws teeb meem). Exosmosis hauv cov ntsiab lus yooj yim yog kev txav ntawm cov dej tawm ntawm lub cell. Thaum lub sij hawm exosmosis, lub solute concentration nyob rau hauv lub cell yog qis dua qhov chaw sab nraud. Ob qho xwm txheej xws li qhov sib txawv ntawm cov dej muaj peev xwm thiab cov kuab tshuaj concentration ua rau tsim ntawm qhov muaj peev xwm gradient thiab thaum kawg ua rau muaj qhov tshwm sim ntawm exosmosis hauv ib lub cell.
Shrinkage ntawm cov hlwb tshwm sim vim qhov txav ntawm cov dej tawm ntawm lub cell. Cell shrinkage tuaj yeem tshwm sim los ntawm kev tso cov cell hauv cov tshuaj hypertonic uas yog hom kev daws teeb meem uas muaj cov dej qis dua vim tias muaj cov kua qaub siab. Yog li ntawd, nws muaj lub siab osmotic siab.
Daim duab 02: Exosmosis
Cell shrinkage nyob ntawm hom isotonic tov uas nws muab tso rau. Yog hais tias nws yog ib tug muaj zog hypertonic tov, dej yuav tsiv tawm ntawm lub cell nyob rau hauv ntau ntau thiab ua rau lub cell tuag vim lub cev qhuav dej. Cov xwm txheej no txhais tau tias yog plasmolysis. Kev txav ntawm cov dej molecules los ntawm cov cell ntawm cov hauv paus plaub hau mus rau lub hlwb ntawm lub hauv paus cortex yog ib qho piv txwv rau exosmosis uas tshwm sim nyob rau hauv ib tug nroj tsuag lub cev.
Dab tsi zoo sib xws ntawm Endosmosis thiab Exosmosis?
- Ob yam txheej txheem yog hom osmosis.
- Nyob rau hauv ob txoj kev, kev txav ntawm cov dej molecules tshwm sim thoob lub cell membrane.
Qhov txawv ntawm Endosmosis thiab Exosmosis yog dab tsi?
Endosmosis vs Exosmosis |
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| Kev txav ntawm cov dej molecules los ntawm ib puag ncig sab nraud (muaj peev xwm dej ntau dua thiab qis dua cov ntsiab lus siab) mus rau hauv lub cell (Lower water potential and more solute concentration) hla cov cell membrane hu ua endosmosis. | Kev txav ntawm cov dej molecules los ntawm lub xovtooj ntawm tes (muaj peev xwm dej ntau dua thiab qis dua cov ntsiab lus qis) mus rau hauv ib puag ncig sab nraud (tsawg dua dej muaj peev xwm thiab cov kua dej ntau dua) hla cov cell membrane hu ua exosmosis. |
| Tsiv dej | |
| Dej txav mus rau hauv lub cell hauv endosmosis. | Dej txav tawm ntawm lub cell hauv exosmosis. |
| Type of solution | |
| Endosmosis tshwm sim thaum lub cell muab tso rau hauv cov tshuaj hypotonic. | Exosmosis tshwm sim thaum cov hlwb muab tso rau hauv cov tshuaj hypertonic. |
| Piv txwv | |
| Kev txav dej ntawm cov av mus rau hauv cov hauv paus plaub hau yog ib qho piv txwv rau endosmosis. | Kev txav ntawm cov dej los ntawm cov hauv paus plaub hau mus rau cortical hlwb ntawm cov hauv paus hniav yog ib qho piv txwv rau exosmosis. |
Summary – Endosmosis vs Exosmosis
Osmosis yog ib hom kev sib kis kab mob. Nws yog cov txheej txheem ntawm kev txav ntawm cov dej molecules los ntawm ib cheeb tsam uas muaj dej muaj peev xwm mus rau ib cheeb tsam uas muaj dej tsis tshua muaj peev xwm hla ib daim nyias nyias. Muaj ob hom osmosis: endosmosis thiab exosmosis. Endosmosis yog kev txav ntawm cov dej los ntawm ib puag ncig ib puag ncig mus rau hauv lub cell raws li qhov sib txawv ntawm cov dej muaj peev xwm raws li qhov muaj peev xwm gradient. Hauv endosmosis, cov dej muaj peev xwm ntawm ib puag ncig ib puag ncig yog siab dua li cov dej muaj peev xwm hauv lub cell. Cell cytosol muaj cov kua dej ntau dua li cov cell uas nyob ib puag ncig. Kev nqus dej capillary uas muaj nyob hauv cov av los ntawm cov hauv paus plaub hau hlwb thiab kev txav ntawm cov dej mus rau hauv cov hlab ntsha xylem yog cov qauv zoo tshaj plaws rau endosmosis. Endosmosis tuaj yeem tshwm sim thaum lub cell muab tso rau hauv cov tshuaj hypotonic xws li dej distilled thiab lwm yam. Exosmosis yog cov txheej txheem ntawm kev txav dej molecules ntawm lub cell mus rau lub cell nyob ib puag ncig. Ntawm no, lub peev xwm dej ntawm lub xov tooj ntawm tes tau hais tias yuav siab dua rau ib puag ncig ib puag ncig. Exosmosis tuaj yeem tshwm sim los ntawm kev tso cov cell hauv cov tshuaj hypertonic. Kev txav ntawm cov dej molecules los ntawm cov cell ntawm cov hauv paus plaub hau mus rau lub hlwb ntawm lub hauv paus cortex yog ib qho piv txwv rau exosmosis. Ob qho txheej txheem koom nrog kev txav ntawm cov dej molecules hla lub cell membrane. Qhov no yog qhov txawv ntawm endosmosis thiab exosmosis.
Download PDF Endosmosis vs Exosmosis
Koj tuaj yeem rub tawm PDF version ntawm kab lus no thiab siv nws rau offline hom phiaj raws li daim ntawv ceeb toom. Thov download PDF version ntawm no Qhov txawv Ntawm Endosmosis thiab Exosmosis
