Tawb - uas yog lub neej!

Yog hais tias koj nco qab cov hoob biology kawm, lub cell - ib tug yam ntxwv thiab tej chav tsev ntawm tej sia. Yuav ua li cas yuav ua tau peb hais tias, txawm yog muaj xws li tus kab mob no uas sawv cev rau tsuas yog ib qho ntawm tes. Li no lub npe - celled. Tab sis nyob rau hauv lub cev ntawm cov tsiaj thiab tib neeg tsuas zoo kawg array ntawm lub hlwb. Cia peb rov qab cov qauv ntawm cov hlwb.

Txhua ntawm tes rau hauv peb lub cev yog surrounded los ntawm ib tug tshwj xeeb kev tiv thaiv txheej, uas yog hu ua "daim nyias nyias". Hauv nws yog ib lub tseem. Nws yog ib nqi sau cia hais tias tsis yog txhua txhua lub cev hlwb muaj nuclei. Piv txwv li, raws li nws cov ntshav liab poob lawv cov maturation. Nyob rau hauv lub hlwb ntawm striated nqaij, on qhov tsis tooj, tsis muaj ib lub tseem ceeb, tab sis ob peb. Raws li hais saum toj no, muaj ib tug tshwj xeeb ntawm tes ntshav membrane. Nws lub ntsiab muaj nuj nqi - kom tus sis nrog nyob sib ze lub hlwb thiab qhov ib puag ncig. Txij li thaum nws yog los ntawm daim nyias nyias ntawm lub hlwb tawm tag nrho tsis tseem ceeb metabolic khoom, raws li zoo raws li tau txais cov kev tsim nyog rau lub qub hauj lwm ntawm qhov teeb meem, peb yuav hais tias nws yog - ib tug ntawm cov tseem ceeb tshaj plaws Cheebtsam. Tso tawm ntawm lub tshuaj thiab, on qhov tsis tooj, lawv tso zis yog ua nyob rau hauv lub hauv paus ntsiab lus ntawm diffusion, tog twg los ntawm active thauj los ntawm tshwj xeeb raws.

Core - yog lwm tseem ceeb feem ntawm cov yam ntxwv chav tsev ntawm ib tug sia, hu ua "hlwb." Qhov no yog ib tug me me kheej kheej organelle, uas plays ib qho tseem ceeb luag hauj lwm nyob rau hauv cov kev cai ntawm cellular dab, thiab kuj yog qhov tsim nyog tshuaj ntsuam genetic ntaub ntawv. Thaum cov tub ntxhais nws muaj nws tus kheej daim nyias nyias, uas yog yuav tsum tau nyob rau hauv thiaj li yuav cais nws los ntawm qhov cytoplasm.

Yuav kom paub meej tias qhov tseem ceeb ntawm lub nucleus nyob rau hauv lub neej ntawm lub cell, zaum tau ua ob peb thwmsim. Lawv essence muaj nyob rau hauv lub fact tias nyob rau hauv lub amoebae siv ib tug tshwj xeeb koob raug tshem tawm hauv lub nucleus. Ob peb hnub tom qab no manipulation amoeba tuag. Tsis muaj, nws tsis tau nres mus noj, tab sis nws nyob zoo tag nrho cov dab. Ntawm cov hoob kawm, peb yuav xav hais tias cov amoeba tuag vim hais tias ua "ua hauj lwm", tab sis pheej rov qab ua kev, nyob rau hauv uas cov tub ntxhais yog tsis muab tshem tawm, tab sis yuav luag tsiv nws pom tias lub amoeba raws li ib tug ntawm xws li cuam tsis tuag.

Tom ntej no organelle, tsis muaj uas yuav muaj tsis tau nyob ua ib ke ib lub cell - yog mitochondria. Nws yog surrounded los ntawm ib tug muab ob npaug rau daim nyias nyias. Lub ntsiab muaj nuj nqi ntawm no sostavlyayushey tej hlwb - ATP ntau lawm los electron thauj thiab oxidative ntsev dab. Txawm tias muaj tseeb hais tias mitochondria muaj lawv tus kheej DNA, nws proteins uas encoded rau los ntawm DNA, uas los ntawm lub cytoplasm. Muab qhov tseeb hais tias lub zog yog ib qho tseem ceeb rau lub neej thiab kom tau hauj lwm ntawm txhua lub hlwb, qhov tseem ceeb ntawm no organelle yuav incredibly qho tseem ceeb rau xws li ib tug qauv raws li ib tug ntawm tes. Tus qauv ntawm txhua Attendance mitochondria thiab muaj tsis muaj sib txawv. Muaj ob week, cov thawj ntawm cov uas lub txheej thiab ua hauj lwm pab cais cov mitochondria los ntawm lub cytoplasm. Qhov thib ob - lub puab, txheej sib cais los ntawm lub intermembrane qhov chaw ntawm mitochondria thiab tiv thaiv tus txheem ntawm tob tob ntawm sab nraum.

Txhua cell organelles yog ntawm kev tseem ceeb, ces nws yog heev yooj yim mus txheeb xyuas ruaj thiab tsim nyog. Tawb - uas yog lub neej!