Tsim, Science
Tus qauv ntawm lub sia hlwb
Peb hais tau tias muaj sia nyob - yog ib tug complex system uas ua ntau yam zog tsim nyog rau lub neej zoo. Lawv muaj li ntawm hlwb. Yog li ntawd, muab faib mus rau hauv ib-celled thiab multicellular. Nws cov ntaub ntawv lub hauv paus ntawm lub cell ntawm tej kab mob, tsis hais txog ntawm nws cov qauv.
Ib leeg-celled kab mob muaj tsuas yog ib hom ntawm tes. Nyob rau hauv multicellular kab mob pib txawv cell hom, uas txawv nyob rau hauv lawv tej qhov tseem ceeb. txoj kev tshawb no ntawm hlwb muab kev koom tes nyob rau hauv cytology, uas muaj xws li kev kawm thiab biology.
cell qauv yog yuav luag tib yam rau txhua yam. Lawv txawv nyob rau hauv functionality, loj thiab zoo. Cov tshuaj nyob tus yeees yog tseem raug rau tag nrho cov hlwb uas muaj sia nyob. Lub cell muaj ib tug tseem ceeb molecules: RNA, cov nqaijrog, DNA, polysaccharides thiab lipids ntsiab. Yuav luag 80 feem pua ntawm cov cell yog dej. Nyob rau hauv tas li ntawd, nws yog tsim los ntawm suab thaj, nucleotides, amino acids thiab lwm yam khoom ntawm tus txheej txheem noj qhov chaw nyob rau hauv lub cell.
Tus qauv ntawm lub nyob hlwb ntawm lub cev muaj ib tug plurality ntawm Cheebtsam. cell nto membrane povntawv. Nws tso cai rau cell allergic xwb tej tshuaj. Nruab nrab ntawm lub cell thiab daim nyias nyias yog kua intercellular substance. Hais tias daim nyias nyias yog ib tug intermediary nyob rau hauv cov kev pauv dab tshwm sim nruab nrab ntawm tus cell thiab lub intercellular kua.
Lub ntsiab tivthaiv ntawm lub cell yog lub cytoplasm. Qhov no tshuaj yog ib tug khov, semi-khoom taub hau. Nws muaj organelles, uas ua ib tug xov tooj ntawm kev khiav dej num. Cov no muaj xws li nram qab no Cheebtsam: lub cell chaw, lub lysosome, nucleus, mitochondria, endoplasmic reticulum, ribosomes thiab complex Goldzhi.Kazhdy ntawm cov Cheebtsam yuav tsum tshwm sim nyob rau hauv lub cell qauv.
Tag nrho cytoplasm muaj ib tug plurality ntawm tubular kab noj hniav thiab uas tshwm sim tawm lub endoplasmic reticulum. Qhov no tag nrho qhov system synthesizes accumulates thiab txhawb organic compound uas ua cell. Endoplasmic reticulum muab kev koom tes nyob rau hauv protein synthesis.
Nyob rau hauv tas li ntawd mus rau nws nyob rau hauv protein synthesis yog muab kev koom tes ribosome uas muaj RNA thiab protein. Golgi complex muaj feem xyuam rau cov tsim ntawm lysosomes thiab accumulates organic tshuaj. Qhov no tshwj xeeb chamber nrog npuas rau hauv lub xaus.
Cell chaw muaj ob plab hlaub muab kev koom tes nyob rau hauv cell division. Cell center yog nyob ncaj qha tom ntej no mus rau lub keeb.
Yog li ntawd maj peb tau txais mus rau lub ntsiab tivthaiv nyob rau hauv lub cell qauv - cov tub ntxhais. Qhov no yog qhov tseem ceeb tshaj plaws ib feem ntawm lub cell. Nws muaj lub nucleolus, cov nqaijrog, Sibhawm, nucleic acids, carbohydrates, thiab chromosomes. Tag nrho ntawm lub puab tub ntxhais uas muaj cov nuclear kua ntoo. Tag nrho cov ntaub ntawv hais txog caj muaj chromosomes. Tus qauv ntawm lub tib neeg lub cev lub hlwb muab rau 46 chromosomes. Kab hlwb yog ua los ntawm 23 chromosomes.
Tus qauv ntawm lub hlwb thiab nkag mus rau hauv lub lysosome. Lawv purify lub hlwb los tuag daim tawv nqaij hais.
Hlwb uas tsis yog lub ntsiab Cheebtsam thiab ib co ntawm cov tebchaw muaj organic thiab inorganic cim. Raws li twb tau hais, lub cell muaj 80 feem pua dej. Lwm inorganic compound uas muaj xws li nyob rau hauv nws muaj pes tsawg leeg, yog ntsev. Dej plays ib qho tseem ceeb luag hauj lwm nyob rau hauv cell kev ua si. Nws yog tus thawj xib fwb tshuaj tshua ntawm cov neeg koom, raws li cov cab kuj yam thiab outputting hlwb los ntawm teeb meem sib txuas. Ntsev pab txhawb kom muab faib rau cov dej nyob rau hauv lub cell qauv.
Ntawm cov organic tebchaw tuaj: hydrogen, oxygen, sulfur, hlau, magnesium, zinc, thiab nitrogen, iodine, phosphorus. Lawv yog cov tseem ceeb heev rau hloov dua siab tshiab ntawm complex organic tebchaw.
Cell - yog qhov tseem ceeb feem ntawm tej sia. Nws qauv - ib tug complex mechanism, uas yuav tsum tau tsis txhua failures. Txwv tsis pub, nws yuav ua rau tib dab.
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