Tsim, Science
Amoeba Proteus, nws vaj tse, tshwj xeeb tshaj yog cov qauv thiab ua tau hauj
Amoeba Proteus outwardly yog ib tug cell yog ncaj qha mus txog rau lub hom protozoa, rhizopods mus rau lub chav kawm ntawv, los yog lwm tus lawv yog hu ua cov sarkodovyh. Lawv muaj pseudopodia, yog cov kabmob los ntawm kev uas lawv txav thiab capture zaub mov. Tuab plhaub nyob rau hauv lub hlwb uas ploj lawm nyob rau hauv kev twb kev txuas uas cov amoeba tau yooj yim hloov zoo. Cov txheej cover - heev nyias cytoplasmic membrane.
Amoeba Proteus qauv.
Lub amoeba yog heev tsuas txheej txheem. Ib tug ntawm cov nyuaj nyob beings. Nws twb tsis muaj lub cev pob txha. Amoeba Proteus nyob rau hauv qab ntawm lub ntau yam reservoirs nyob rau hauv cov av nkos. Muaj yog ib yam: nyob rau hauv lub reservoirs tsuas dej tsis qab ntsev: pas dej, ditch, etc. Yog hais tias koj saib nyob rau nws, nws yog cuab kev tias lub grey pob tshab pob twb tsis muaj qhov zoo lawm. Lub npe ntawm qhov no ua kev txhais raws li "changeable". Lub cev hlwb yog tsim txhua lub sij hawm cuav ko taw, vim lub fact tias cov cytoplasm ntws rau ub rau no. Qhov ntev pob tej zaum yuav tsum muaj tsawg kawg 0.2 hli thiab nyob 0.7 millimeters. Organelles - pseudopodia pab txhawb zog ntawm no me me tsiaj. Lub tsheb qeeb heev, nws tsa ib tug khiav ntawm tuab hnoos qeev. Thaum lub sij hawm lub zog ntawm amoeba encounters txawv ib leeg-celled kab mob xws li algae thiab cov kab mob. Nws wraps nyob ib ncig ntawm lawv thiab yuav ua li cas nqus lawv tus kheej cytoplasm, txoj kev ua ib tug digestive vacuole.
Amoeba Proteus cytoplasm allocates kev enzymes uas zom zaub mov. Muaj yog ib tug txheej txheem ntawm intracellular digestion. Overcooked zaub mov nyob rau hauv cov kua daim ntawv nkag mus rau lub cytoplasm nws tus kheej, thiab undigested zaub mov residue - yog tso tawm. Qhov no txoj kev ntawm trapping sau yog hu ua phagocytosis. Nyob rau hauv lub cev ntawm lub amoeba yog kev hloov maj mam raws los ntawm kev uas cov kua nkag mus rau hauv cell lub cev. Qhov no tus txheej txheem no hu ua pinocytosis. Qhov ib vacuole, mus pov tseg qhov tshaj kua tawm cov khoom. Nws hu ua lub contractile vacuole. Tau tshem ntawm surplus txhua txhua li tsib feeb. Nyob rau hauv endoplasm muaj ib ntsiav. Tu tub tu kiv tshwm sim raws li nram no: lub cell faib nyob rau hauv ob, piv txwv li asexually.
Raws li cov amoeba txiag nws tus kheej los ntawm cov kev phiv los ntawm cov sab nraum.
Yog hais tias muaj yog unfavorable tej yam kev mob rau lub hav zoov ntawm no kab, xws li ib tug qhuav pas dej, cua txias dej nyob rau hauv lub pas dej thiab lwm yam, lub Amoeba Proteus yeej ib txwm nrhiav kev dissociate nws tus kheej los ntawm lawv. Ua rau nws organelles, nws yog them los ntawm ib tug muab ob npaug rau plhaub thiab yog li ntaub ntawv ib tug cyst. Nyob rau hauv dej siab tej yam kev mob, e.g., lub caij ntuj sov yoojyim amoeba cyst. Cyst nqa los ntawm cov cua, yog li Amoeba Proteus yog tswm. no zeej ua tsis taus pa tshwm sim thoob plaws nws lub cev nto, piv txwv li, lub hlwb ntawm lub cev. Amoeba absorbs oxygen uas twb muaj lawm nyob rau hauv ib tug aqueous nruab nrab, tso cov pa roj carbon dioxide. Nrog rau oxygen cov as-ham yog decomposed rau hauv yooj yim sib txuas. Nyob rau hauv tib neeg thiab muaj ntau yam tsiaj, tshwj xeeb tshaj yog nyob rau hauv lawv lub plab, ib tug amoeba nyob cab. Ib tug ntawm cov neeg sawv cev ntawm cov cab yog lub dysentery amoeba. Nws tau pub mov rau plob tsis so tswj hais (kev puas tsuaj), thiab cov ntshav liab. Nws yog ib lub causative tus neeg saib xyuas ntawm ib tug kab mob kis, uas yog hu ua amoebic dysentery.
cov lus xaus:
- Amoeba Proteus thiab dysentery amoeba yog ib leeg-celled tsiaj. Txav mus rau ntawm organelles-prolegs mus rau lub rhizomes;
- rhizopods chav kawm ntawv yog zoo li algae, uas qhia lawv kev sib raug zoo;
- pub rau organic teeb meem twg thiaj li raug los ntawm lwm yam nroj tsuag, los yog lwm yam yooj yim cov kab mob no, uas distinguishes lawv los ntawm algae amoeba.
Amoeba - txawm yog ib qho yooj yim, tab sis rau tag nrho cov kab mob uas muaj peev xwm mus ua tau ib qho kev ywj hav zoov.
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