Yuav ua li cas yog lub vacuole: hom thiab cov yam ntxwv ntawm cov lug

Lub hlwb ntawm cov nroj tsuag thiab cov tsiaj muaj ib tug ntau yam ntawm lug uas ua txij nkawm ntawm lawv tseem ceeb heev functions. Ib tug ntawm lawv yog cov vacuole. Ntawm lawv tus kheej, lawv muaj ib co tseem ceeb sib txawv. Los ntawm no tsab xov xwm koj yuav kawm dab tsi hauv lub vacuole thiab vim li cas lawv yuav tsum tau mus muaj sia nyob.

Cob phum cell qauv

Hu ua vacuoles odnomembrannye organelles, nroj tsuag thiab tsiaj hlwb. Ib txhia ntawm lawv yog tas mus li lug, hos lwm cov neeg yuav tshwm sim raws li lawv muaj kev haumxeeb yuav tsum muaj. Nyob ntawm seb cov qauv ntawm cov organelles yuav tau cia cov as-ham, phua lawv thiab ua ib tug ntxawg muaj nuj nqi.

hom lug

Muaj peb hom kev vacuoles. Nyob rau hauv cog hlwb yog contractile thiab digestive. Lawv tswj tus osmotic siab, tawm sab nraum undigested seem thiab ua tau cov secretory muaj nuj nqi. Tab sis cov nroj tsuag yog loj tso tsheb hlau luam muaj dej, uas yaj tag nrho cov cell substance.

Vacuoles nyob rau hauv cog hlwb

Nyob rau hauv cov tub ntxhais cog hlwb, cov lug yuav nyob tshuam tag nrho cov puab txheem. Thiab nws yog ib qho yooj yim los mus piav qhia. Tseeb, ib tug zuj zus lub cev xav tau ib tug ntau ntawm cov backup cov neeg ua hauj txoj kev loj hlob. Yuav ua li cas yog lub vacuole ntawm cog hlwb? Qhov no loj odnomembrannye tso tsheb hlau luam nrog cell kua ntoo. Cov yav tas yog ib tug dej nrog yaj carbohydrates thiab residues neorganichskih tshuaj. Tus qauv ntawm lub cell kua ntoo kuj muaj xws li ib tug ntau yam ntawm metabolic khoom. Nws yuav ua tau alkaloids, tannins. Muaj kuj pigments uas muab cov xim rau ntau qhov chaw ntawm cov nroj tsuag. Yog li, lub vacuole nyob rau hauv ib tug cog ntawm tes plays lub luag hauj lwm ntawm ib tug "pantry".

contractile vacuole

Tus qauv ntawm lub vacuole, uas ua ib tug ntxawg muaj nuj nqi, yog heev txawv. Feem ntau ntawm cov lug nyob rau hauv lub hlwb ntawm dej tsis qab ntsev thiab marine protozoans. Yuav ua li cas yog lub vacuole, uas tswj cov cell turgor? Lawv sawv cev rau ib tug pulsating npuas, uas yog nyob ib ncig ntawm lub tubular network. Qhov no thauj txoj kev rau cov kua. Raws li tubules tshaj kua thawj los ntawm lub cytoplasm mus rau hauv lub vacuole, tab sis vim hais tias nws twb sab sab rau sab nraum.

Qhov twg tau txais tshaj kua nyob rau hauv lub cell thiab yog vim li cas nws yuav tsum tau muab tshem tawm? Tag nrho cov teeb meem nyob rau hauv cov kev cai ntawm physics. Raws li lawv, lub zog yuav siv sij hawm qhov chaw ntawm ib cheeb tsam ntawm dua concentration rau sab. Raws li cov ntsev nyob rau hauv ib puag ncig ntau dej pib yuav tsum tau xa mus rau hauv lub cell. Nws saum npoo tsev muaj peev xwm tsuas tsis mas xws siab. Thiab vim yog lub contractile vacuoles khaws cia rau tib theem ntawm osmotic siab thiab tshuav nyiaj li cas nrog rau cov ib puag ncig.

digestive vacuole

Digestive vacuole muab siab npuab txoj tshuaj mus rau hauv tej yam yooj yim, uas yuav muaj peev xwm nqus ntawm lub cev. Cov lug yog impermanent chaw. Lawv tshwm sim nyob rau hauv hais tias ib feem ntawm lub cytoplasm, qhov twg cov khoom noj seem. Nws yuav ua tau tag nrho ob qho khib nyiab thiab cov kua. Nyob ib ncig ntawm lawv tsim odnomembranny vial muaj hydrolytic enzymes. Nyob ntawm seb qhov xwm ntawm tus txheem ntawm lub nruab nrab nyob rau ntawd hloov los ntawm acidic rau alkaline. Cov biologically active tshuaj leeb tshuaj tshua, tab sis tsis yog ib feem ntawm nws cov khoom. Ntxiv mus, los ntawm cov phab ntsa hauv vacuoles zaub mov nkag mus rau hauv cytoplasm thiab nqis. Nws undigested seem faib los ntawm daim tawv nqaij hlwb, los yog tshwj xeeb kev kawm ntawv.

Yog li ntawd, nyob rau hauv no tsab xov xwm peb ntsia dab tsi vacuole, tau ntsib nrog lawv ntau yam. Nyob ntawm seb cov yam ntxwv ntawm cov qauv, lawv yuav tau mus cia ib tug yeeb tshuaj, muab siab npuab rau lawv, los sis tawm ntawm lub cell thiab nws cov lug.