Qhov sib txawv tseem ceeb ntawm txoj kev xav autogenous thiab endosymbiotic txoj kev xav yog qhov kev tshawb xav autogenous hais tias nucleus thiab cytoplasm tsim los ntawm kev hloov pauv hloov pauv hauv ib tus kab mob prokaryotic thaum txoj kev xav endosymbiotic hais tias qee qhov organelles, tshwj xeeb tshaj yog mitochondria thiab chloroplasts hauv ib zaug eukaryotic hlwb, Prokaryotic microbes nyob hauv kev sib raug zoo.
Eukaryotic hlwb yog qhov txawv ntawm cov hlwb prokaryotic, thiab lawv muaj cov yam ntxwv tshwj xeeb. Qhov tseem ceeb tshaj plaws, cov hlwb eukaryotic muaj cov nucleus thiab tseem ceeb ntawm cov kab mob sib txuas. Muaj ntau txoj kev xav piav qhia txog kev hloov pauv ntawm cov hlwb eukaryotic thiab keeb kwm ntawm mitochondria thiab chloroplasts hauv cov hlwb eukaryotic. Autogenous theory thiab endosymbiotic theory yog ob txoj kev xav. Autogenous txoj kev xav piav qhia txog keeb kwm ntawm nucleus thiab cytoplasm hauv cov hlwb eukaryotic, thaum endosymbiotic txoj kev xav piav qhia txog keeb kwm ntawm mitochondria thiab chloroplasts hauv cov hlwb eukaryotic.
Dab tsi yog Autogenous Theory?
Autogenous txoj kev xav yog ib qho ntawm cov kev xav loj ntawm kev tsim cov hlwb eukaryotic. Raws li qhov kev xav no, eukaryotic cell evolved ncaj qha los ntawm ib tug poj koob yawm txwv prokaryotic los ntawm compartmentalization ntawm cov dej num tshwm sim los ntawm invaginations ntawm prokaryotic plasma membrane. Qhov kev tshawb xav no hais tias lub nucleus, cytoplasm thiab lwm yam organelles xws li Golgi apparatus, vacuoles, lysosomes thiab endoplasmic reticulum tsim los ntawm evolutionary hloov nyob rau hauv ib tug tib prokaryotic kab mob. Tsis zoo li endosymbiotic txoj kev xav, uas tsuas yog siv rau mitochondria thiab chloroplasts, autogenous txoj kev xav tau txais rau cov endoplasmic reticulum, Golgi, cov ntaub so ntswg nuclear, thiab organelles los ntawm ib daim nyias nyias xws li lysosomes, thiab lwm yam.
Dab tsi yog Endosymbiotic Theory?
Endosymbiotic txoj kev xav lossis endosymbiosis yog txheej txheem kev xav uas piav qhia txog keeb kwm ntawm qee cov organelles hauv cov hlwb eukaryotic. Qhov kev xav no piav qhia txog cov txheej txheem uas mitochondria thiab chloroplasts nkag mus rau hauv cov hlwb eukaryotic. Ob lub organelles muaj lawv tus kheej DNA. Yog li, cov kws tshawb fawb ntseeg tias mitochondria tau tshwm sim hauv cov hlwb eukaryotic los ntawm autotrophic alphaproteobacteria ntawm endosymbiosis. Qhov no yog qhov tshwm sim ntawm kev sib raug zoo ntawm cov kab mob eukaryotic thiab cov kab mob autotrophic. Cov kab mob autotrophic no tau noj los ntawm cov txheej txheem eukaryotic ntawm phagocytosis. Thaum engulfed, tus tswv tsev cell tau muab ib qho chaw xis nyob, nyab xeeb kom muaj sia nyob. Thaum kawg, lawv txoj kev sib raug zoo tau ua rau lub hauv paus ntawm mitochondria hauv eukaryotic hlwb.
Raws li qhov kev xav no, chloroplasts muaj keeb kwm hauv cov nroj tsuag ntawm cyanobacteria los ntawm endosymbiosis. Ib tug cyanobacterium tau noj los ntawm ib tug primitive eukaryotic cell nrog mitochondria. Qhov no tau ua rau lub hauv paus chiv keeb ntawm chloroplasts nyob rau hauv lub photosynthetic eukaryotic hlwb. Li no, txoj kev tshawb xav endosymbiotic tshawb fawb piav qhia tias mitochondria thiab chloroplasts tau tshwm sim hauv cov hlwb eukaryotic los ntawm cov kab mob prokaryotic.
Daim duab 01: Endosymbiotic Theory
Endosymbiotic txoj kev xav tau txhawb nqa los ntawm ntau qhov tseeb, suav nrog qhov ntau thiab tsawg ntawm mitochondria thiab chloroplasts. Ob lub organelles yog tib yam loj li prokaryotic cell. Lawv muab faib los ntawm binary fission zoo ib yam li cov kab mob. Ntxiv mus, mitochondria thiab chloroplast muaj lawv tus kheej DNA uas yog ncig thiab muaj cov noob uas zoo ib yam li cov noob ntawm prokaryotes niaj hnub no. Tsis tas li ntawd, mitochondria thiab chloroplast muaj ribosomes tsim los ntawm 30S thiab 50S subunits zoo ib yam li cov hlwb prokaryotic. Cov lus tseeb no ua pov thawj tias cov organelles muaj feem cuam tshuam nrog prokaryotes. Yog li, raws li txoj kev xav endosymbiotic, cov organelles hauv eukaryotic hlwb yog ib zaug prokaryotic hlwb.
Dab tsi yog qhov zoo sib xws ntawm Autogenous Theory thiab Endosymbiotic Theory?
- Autogenous theory thiab endosymbiotic theory yog ob txoj kev xav uas piav qhia txog keeb kwm ntawm eukaryotic cells.
- Ob txoj kev xav ntseeg tias cov organelles hauv cov hlwb eukaryotic yog los ntawm cov hlwb prokaryotic.
Dab tsi yog qhov txawv ntawm Autogenous Theory thiab Endosymbiotic Theory?
Autogenous txoj kev xav hais tias eukaryotic hlwb evolved ncaj qha los ntawm ib tug poj koob yawm txwv prokaryotic los ntawm compartmentalization ntawm cov dej num coj los ntawm infoldings ntawm lub prokaryote plasma membrane thaum endosymbiotic txoj kev xav hais tias tej yam organelles ntawm eukaryotic hlwb evolved raws li ib tug tshwm sim ntawm prokaryotic plasma membranes. cov yawg koob. Yog li, qhov no yog qhov sib txawv tseem ceeb ntawm autogenous theory thiab endosymbiotic theory.
Ntxiv mus, txoj kev xav autogenous tau lees txais rau endoplasmic reticulum, Golgi, thiab cov ntaub so ntswg nuclear, thiab ntawm cov organelles uas nyob ib puag ncig los ntawm ib daim nyias nyias thaum txoj kev xav endosymbiotic tsuas yog txais rau mitochondria thiab chloroplasts.
Hauv qab infographic tabulates qhov sib txawv ntawm autogenous theory thiab endosymbiotic theory.
Summary – Autogenous Theory vs Endosymbiotic Theory
Autogenous theory thiab endosymbiotic theory yog ob txoj kev xav loj ntawm kev tsim cov hlwb eukaryotic. Lub autogenous txoj kev xav hais tias organelles xws li cov nucleus, Golgi apparatus, vacuoles, lysosomes thiab endoplasmic reticulum tshwm sim ncaj qha los ntawm ib tug prokaryote pog koob yawg koob los ntawm compartmentalization ntawm lub zog tshwm sim los ntawm invaginations ntawm lub prokaryotic plasma membrane. Txoj kev tshawb xav endosymbiotic ntawm qhov tod tes, hais tias qee yam eukaryotic organelles, tshwj xeeb tshaj yog mitochondria thiab chloroplasts, tau hloov zuj zus los ntawm cov kab mob prokaryotic vim muaj kev sib raug zoo ntawm lawv. Raws li qhov kev xav ntawd, cov organelles ib zaug prokaryotic hlwb nyob hauv cov hlwb eukaryotic. Yog li, qhov no qhia txog qhov sib txawv ntawm autogenous theory thiab endosymbiotic theory.
