Plasmolysis yog txheej txheem osmotic hauv cov hlwb ntawm cov nroj tsuag, cov kab mob thiab cov kab mob, cuam tshuam nrog lawv lub cev qhuav dej thiab tawm ntawm cov kua cytoplasm los ntawm sab hauv ntawm cov cell membrane nrog kev tsim cov kab noj hniav. Qhov no yog ua tau vim muaj cov phab ntsa ntawm tes, uas muab cov txheej txheem nruj. Deplasmolysis yog cov txheej txheem thim rov qab, uas yog, kev kho dua tshiab ntawm lub cell qub nrog kev txo qis hauv osmotic siab hauv cov kua dej ntxiv.
Keeb kwm ntawm plasmolysis thiab deplasmolysis
Plasmolysis tshwm sim hauv cov hlwb ntawm cov fungi, nroj tsuag thiab cov kab mob, uas muaj cov phab ntsa ntawm tes. Thaum lawv nyob rau hauv cov tshuaj hypertonic, qhov concentration ntawm electrolytes nyob rau hauv uas yog ntau tshaj nyob rau hauv lub cytoplasm, dej tso tawm mus rau hauv lub intercellular qhov chaw. Nyob ntawm seb lub cev qhuav dej, cell plasmolysis tau muab faib ua angular nrog tsawg kawg cytoplasmic retreat, concave, convulsive, cap thiab convex.
Nyob rau ib nrab deplasmolysisTag nrho cov kev hloov pauv ntawm plasmolysis, tab sis tag nrho cov cell viability tuaj yeem rov qab los tsuas yog nyob rau hauv cov ntaub ntawv ntawm convulsive, angular, concave plasmolysis, vim nws tsim los ntawm me me lossis tsis ua rau muaj kev puas tsuaj rau cov txheej txheem intracellular. Convex plasmolysis yog ib qho txheej txheem irreversible kiag li. Nws ib nrab zoo li lub convulsive variant nyob rau hauv cov duab, tab sis tom kawg yog feem ntau reversible.
Osmotic phenomena hauv cell
Cov xwm txheej zoo li plasmolysis thiab deplasmolysis yog qhov sib txawv. Plasmolysis yog kev cog lus ntawm cov cell thaum nws nyob hauv cov tshuaj hypertonic. Deplasmolysis yog kev kho dua tshiab ntawm cov duab qub thiab qhov loj ntawm lub xov tooj ntawm tes uas tau dhau los ua plasmolysis. Plasmolysis yog ib qho tshwm sim osmotic uas tshwm sim hauv cov nroj tsuag thiab cov kab mob, nrog rau cov kab mob fungal.
Ib yam tseem ceeb rau nws txoj kev loj hlob yog lub xub ntiag ntawm phab ntsa ntawm tes, ib lub thav duab nruj uas muab cov duab tas li thiab qhov loj me. Nyob rau hauv lawv, qhov tshwm sim no tuaj yeem piav qhia raws li tus txheej txheem ntawm wrinkling ntawm ib puag ncig sab hauv ntawm lub xov tooj ntawm tes vim yog tso tawm cov kua rau hauv qhov chaw nruab nrab ntawm lub cell thiab tsim cov kab noj hniav ntawm cov cytoplasm rov qab thiab cov cell membrane. Ntawd yog, lub xov tooj ntawm tes cytoplasm, poob kua dej, ntsws thiab tso tawm cov kab noj hniav ntawm cov cell membrane thiab nws ib puag ncig sab hauv.
Tsev piv txwv ntawm plasmolysis thiab deplasmolysis
Plasmolysis ntawm cov nroj tsuag, cov kab mob thiab cov kab mob yog cov txheej txheem thim rov qab. Nyob rau tib lub sijhawm, cov kab mob uas nws cov hlwb muaj cov phab ntsa ntawm tes tuaj yeem nyob hauv lub xeev no ntev heev. Tab sis ib zaug nyob rau hauv ib qho chaw zoo, lawv muaj peev xwm rov qab tau thiabtxuas ntxiv koj lub neej. Ib tsev neeg piv txwv ntawm plasmolysis thiab deplasmolysis yog kev npaj jam. Hauv kev daws teeb meem nrog cov piam thaj ntau, plasmolysis tshwm sim. Qhov no ua kom muaj kev nyab xeeb ntawm cov khoom tau ntev, vim cov kab mob tsis tuaj yeem ua tiav lawv cov haujlwm tseem ceeb.
Thaum siv jam, thaum lub siab osmotic hauv cov tshuaj txo qis, cov kab mob ntawm tes rov ua haujlwm dua. Qhov no txhais tau hais tias xws li ib tug tshwm sim raws li deplasmolysis yog tshwm sim - lub restoration ntawm gel-sol zog ntawm nws cytoplasm thiab ib txwm ua hauj lwm. Yog tias muaj qhov txaus ntawm cov kab mob pathogenic microflora hauv cov tshuaj, ces nws muaj peev xwm ua rau muaj kab mob sib kis.
Osmotic phenomena hauv cov tsiaj hlwb
Ntau yam ntawm cov tsiaj cell deplasmolysis yog erythrocyte hemolysis. Nws raug rhuav tshem hauv cov tshuaj hypotonic vim nws qhov o ntau dhau. Vim qhov qis qis ntawm electrolytes nyob rau sab nraud ntawm erythrocyte, dej rushes los ntawm daim nyias nyias sab hauv kom sib npaug osmotic siab. Txawm li cas los xij, vim qhov chaw sab hauv ntawm lub xov tooj ntawm tes thiab nws lub peev xwm tsis tshua muaj, daim nyias nyias rupture thiab hemolysis tshwm sim. Cov nroj tsuag ntawm tes tau ruaj khov dua vim muaj cov phab ntsa ntawm tes, thiab yog li nws qhov o feem ntau tsis ua rau lysis. Nyob rau tib lub sijhawm, lub siab hydrostatic hauv lub cell sib npaug nrog lub siab osmotic, uas nres cov dej ntxiv mus rau hauv cytoplasm.
Nyob rau hauv cov tshuaj hypertonic hauv erythrocytes, qhov txawv txav tshwm sim tshwm sim - dejNws raug tshem tawm los ntawm cytoplasm, thiab lub cell shrinks. Txawm li cas los xij, nyob rau hauv cov kab mob multicellular tsim tau heev, qhov kev txwv ntawm osmotic kev txiav txim yog tsawg heev. Yog li ntawd, lub cell tuag ntau zaus, vim nws tsis tuaj yeem nyob twj ywm rau lub sijhawm ntev nyob rau hauv lub xub ntiag ntawm cytoplasm viscous heev. Ntxiv mus, nyob rau hauv tib neeg lub cev, txhua lub cell yuav tsum ua tej yam dej num, thiab tsis yog nyob rau hauv xwb. Lub cell uas "tsis ua haujlwm" yuav raug tshem tawm los ntawm macrophages.
