Qhov sib txawv tseem ceeb ntawm cell phaj thiab cleavage furrow yog tias cell phaj yog ib phaj pom nyob rau hauv cov nroj tsuag xwb, thaum cleavage furrow yog ib qho indentation pom tsuas yog nyob rau hauv cov tsiaj hlwb thiab ib co algae hlwb.
Cell division yog txheej txheem los ntawm cov niam txiv cell faib ua ob los yog ntau tshaj cov ntxhais. Eukaryotes muaj ob lub cell faib ua mitosis thiab meiosis. Tab sis prokaryotes muaj kev faib tawm ntawm tes hu ua binary fission. Cytokinesis yog ib feem tseem ceeb ntawm cov txheej txheem ntawm cell division uas lub cytoplasm ntawm ib tug cell faib ua ob tug ntxhais hlwb. Cell phaj thiab cleavage furrow yog ob yam uas pab cytokinesis hauv eukaryotic hlwb.
Cell Phaj yog dab tsi?
Ib lub phaj ntawm tes yog cov qauv pom tsuas yog hauv cov nroj tsuag hauv av xwb. Nyob rau hauv lub tsim ntawm lub cell phaj, lub Golgi thiab endosomal derived vesicles-nqa cov khoom ntawm lub cell phab ntsa thiab cell membrane mus txog lub dav hlau ntawm cell division nyob rau hauv cytokinesis. Tom qab fusion ntawm cov vesicles nyob rau hauv lub dav hlau no ua rau lub cell phaj. Tom qab tsim ntawm thawj labile cell phaj nyob rau hauv nruab nrab ntawm lub cell, nws consolidates mus rau hauv ib tug tubular network thiab nws thiaj li ib tug fenestrated daim ntawv nyob rau hauv lub kawg ntawm cov txheej txheem. Cov phaj cell no loj hlob sab nraud los ntawm qhov nruab nrab ntawm lub cell mus rau niam txiv plasma membrane. Tom qab ntawd nws fuses nrog niam txiv plasma membrane thiab ua kom tiav cov cell faib hauv cov nroj tsuag.
Daim duab 01: Cell Phaj
Kev tsim thiab kev loj hlob ntawm cov phaj cell yog nyob ntawm cov phragmoplast. Phragmoplast yog cov nroj tsuag ntawm cov qauv tshwj xeeb tsim tawm hauv cytokinesis lig. Yog li ntawd, phragmoplast yuav tsum tau rau lub hom phiaj kom zoo ntawm Golgi thiab endosomal derived vesicles mus rau lub cell phaj. Tsis tas li ntawd, thaum lub cell loj hlob nyob rau hauv nruab nrab ntawm lub cell, lub phragmoplast disassembles nyob rau hauv lub cheeb tsam no. Cov ntsiab lus tshiab kuj tau ntxiv rau sab nraud ntawm phragmoplast. Qhov no ua rau kom tsis tu ncua ntawm phragmoplast. Tsis tas li ntawd, qhov no kuj tseem pab txuas ntxiv qhov rov ua dua ntawm Golgi muab tau los ntawm vesicles mus rau qhov loj hlob ntawm cov phaj cell. Thaum kawg, thaum lub cell phaj fuses nrog cov plasma membrane, phragmoplast ploj.
Cleavage Furrow yog dab tsi?
Cleavage furrow yog ib qho indentation pom nyob rau hauv cov tsiaj hlwb los yog ib co algae hlwb. Nws yog ib qho indentation ntawm qhov chaw ntawm lub cell uas pib qhov kev loj hlob ntawm cleavage. Vim li no, tsiaj txhu thiab qee lub hlwb algal raug cytokinesis. Cov proteins uas muaj lub luag haujlwm rau cov leeg nqaij, xws li actin thiab myosin, pib txheej txheem ntawm kev tsim cov cleavage furrow. Cov proteins no tsim lub nplhaib actomyosin. Feem ntau, lub nplhaib no tsim nyob rau hauv thaj tsam equatorial ntawm cov cell membrane uas ua rau cov plasma membrane los tsim cov cleavage furrow.
Daim duab 02: Cleavage Furrow
Thaum lub sijhawm tshem tawm ntawm cov tsiaj cell, lub nplhaib actomyosin nruj ncig lub cytoplasm ntawm lub xovtooj kom txog thaum lub cytoplasm yog pinched rau hauv ob tug ntxhais hlwb. Cov txheej txheem no pab qhov kawg ntawm kev sib cais ntawm cov cell mus rau hauv ob lub hlwb zoo tib yam. Tsis tas li ntawd, tus choj tsim los ntawm cleavage furrow thiab mitotic spindle fibers tau tawg thiab rov ua dua los tsim ob lub hlwb zoo tib yam hauv lub sijhawm cytokinesis. Lub resealing yog ua los ntawm kev siv cov calcium-dependent exocytosis mechanism ntawm Golgi vesicles.
Dab tsi zoo sib xws ntawm Cell Phaj thiab Cleavage Furrow?
- Cell phaj thiab cleavage furrow yog cov khoom ntawm tes tshwm sim thaum lub sij hawm cytokinesis.
- Ob leeg pom muaj nyob hauv eukaryotic hlwb.
- Cov qauv no pab tsim ob lub hlwb zoo ib yam los ntawm niam txiv cell.
- Lawv yog ob qho tseem ceeb ntawm cov hlwb uas ua rau muaj sia nyob ntawm cov hlwb.
- Ob lub qauv ploj tom qab cytokinesis.
Qhov txawv ntawm Cell Phaj thiab Cleavage Furrow yog dab tsi?
Cell phaj yog cov qauv pom tsuas yog nyob rau hauv cov nroj tsuag hlwb, thaum cleavage furrow yog ib tug qauv pom nyob rau hauv cov tsiaj hlwb los yog ib co algae hlwb. Yog li, qhov no yog qhov sib txawv tseem ceeb ntawm cell phaj thiab cleavage furrow. Tsis tas li ntawd, cell phaj tsim nyob rau hauv nruab nrab ntawm cov nroj tsuag cell, whereas cleavage furrow tsim nyob rau hauv lub plasma membrane ntawm cov tsiaj los yog algae hlwb. Li no, qhov no yog lwm qhov sib txawv ntawm cell phaj thiab cleavage furrow.
Cov infographic hauv qab no suav nrog ntau qhov sib txawv ntawm cov phaj xov tooj ntawm tes thiab cleavage furrow hauv daim ntawv tabular rau ib sab ntawm kev sib piv.
Summary – Cell Phaj vs Cleavage Furrow
Cell phaj thiab cleavage furrow yog cov khoom ntawm tes uas tshwm sim thaum lub sij hawm cytokinesis ntawm cell division. Cell phaj yog cov qauv tsim los ntawm kev sib xyaw ntawm Golgi thiab endosomal derived vesicles. Nws tsuas pom muaj nyob hauv cov nroj tsuag hauv av xwb. Cleavage furrow yog indentation ua los ntawm constricting lub plasma membrane los ntawm lub nplhaib actomyosin. Nws tsuas pom muaj nyob hauv cov tsiaj los yog algae hlwb xwb. Yog li, qhov no yog cov ntsiab lus ntawm qhov sib txawv ntawm cell phaj thiab cleavage furrow.
