Qhov txawv ntawm Ntau Fission thiab Fragmentation

Cov txheej txheem:

Qhov txawv ntawm Ntau Fission thiab Fragmentation
Qhov txawv ntawm Ntau Fission thiab Fragmentation

Video: Qhov txawv ntawm Ntau Fission thiab Fragmentation

Video: Qhov txawv ntawm Ntau Fission thiab Fragmentation
Video: Niam tij thiab tij laug xa ntsuag mus nrauj zoo 3/15/2018 2024, Kaum ib hlis
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Qhov sib txawv tseem ceeb ntawm ntau qhov fission thiab fragmentation yog ntau qhov fission yog ib hom fission uas niam txiv nucleus faib ob peb zaug mitotically, tsim ntau lub hlwb tshiab, thaum fragmentation yog hom kev sib deev ntawm niam txiv. Cov kab mob no tsuas yog tawg mus rau hauv ob peb ntu uas muaj peev xwm loj hlob mus rau cov neeg tshiab.

Muaj ob hom kev yug me nyuam raws li kev yug me nyuam asexual thiab kev sib deev. Kev yug me nyuam tsis zoo tshwm sim los ntawm ib leej niam leej txiv. Nws tsis koom nrog txiv neej lossis poj niam gametes. Ntxiv mus, muaj ntau hom kev yug me nyuam asexual. Qee qhov no suav nrog fission (binary fission thiab ntau fission), fragmentation, regeneration, budding, spore tsim. Txawm li cas los xij, tsab xov xwm no feem ntau tsom rau qhov sib txawv ntawm ntau qhov sib txawv thiab kev sib cais.

Ntau Fission yog dab tsi?

Ntau qhov fission yog ib qho ntawm ob hom fission uas pom los ntawm cov kab mob xws li qee cov protozoans (Plasmodium), Amoeba thiab Monocystis. Nws yog ib txoj kev yug me nyuam asexual. Ntau qhov fission tshwm sim nyob rau hauv cov xwm txheej tsis zoo.

Qhov Tseem Ceeb Qhov txawv - Ntau Fission vs Fragmentation
Qhov Tseem Ceeb Qhov txawv - Ntau Fission vs Fragmentation

Daim duab 01: Plasmodium

Nyob rau hauv txoj kev tsim tawm no, lub nucleus ntawm lub cev faib ob peb zaug mitotically, tsim ntau lub nuclei. Tom qab ntawd, me me ntawm cytoplasm npog cov nuclei, tsim cov menyuam ntxhais. Thaum kawg, tus ntxhais cell tawm los ntawm niam txiv cell thaum lysing cell membrane. Thaum kawg, ntau qhov fission tsim ntau tus neeg los ntawm ib leeg niam txiv ntawm tes.

Fragmentation yog dab tsi?

Fragmentation yog ib daim ntawv ntawm kev yug me nyuam uas niam txiv lub cev tsuas yog tawg ua ob peb daim, thiab txhua daim loj hlob mus rau ib tus neeg tshiab lossis tus niam txiv clone. Ntxiv mus, hom kev yug me nyuam no muaj nyob rau hauv filamentous fungi, planaria, starfish thiab algae.

Qhov sib txawv ntawm Ntau Fission thiab Fragmentation
Qhov sib txawv ntawm Ntau Fission thiab Fragmentation

Daim duab 02: Spirogyra

Fragmentation yuav los yog tsis txhob txwm. Nws kuj tuaj yeem tshwm sim vim kev puas tsuaj ntuj.

Dab tsi yog qhov zoo sib xws ntawm Ntau Fission thiab Fragmentation?

  • Ntau qhov fission thiab fragmentation yog ob txoj kev yug me nyuam asexual uas tsim cov xeeb ntxwv zoo ib yam.
  • Ntxiv mus, ob qho tib si tshwm sim los ntawm ib leeg niam txiv.
  • Tsis tas li, ob qho tib si tshwm sim ntawm kev sib cais ntawm niam txiv kab mob.

Qhov txawv ntawm Ntau Fission thiab Fragmentation yog dab tsi?

Ntau qhov fission yog ib hom fission, uas yog ib txoj hauv kev zoo li yug me nyuam. Thaum lub sij hawm ntau fission, niam txiv cell nucleus faib los ntawm mitosis ntau zaus thiab tsim cov ntxhais nuclei, uas muaj peev xwm mus rau cytokinesis thiab ua cov hlwb tshiab. Ntawm qhov tod tes, fragmentation yog ib txoj kev yug me nyuam asexual uas tshwm sim hauv cov kab mob multicellular. Thaum lub sij hawm fragmentation, niam txiv kab mob tsuas yog tawg mus rau hauv ob peb fragment uas yuav loj hlob mus rau hauv cov neeg tshiab. Yog li ntawd, qhov no yog qhov sib txawv tseem ceeb ntawm ntau yam fission thiab fragmentation. Cov kab mob unicellular xws li Plasmodium, amoeba, qhia ntau yam fission thaum planaria, nroj tsuag, spirogyra, filamentous fungi qhia fragmentation.

Cov ntaub ntawv hauv qab no-daim duab qhia txog qhov sib txawv ntawm ntau qhov kev sib cais thiab kev tawg.

Qhov sib txawv ntawm Ntau Fission thiab Fragmentation hauv Tabular Form
Qhov sib txawv ntawm Ntau Fission thiab Fragmentation hauv Tabular Form

Summary – Ntau Fission vs Fragmentation

Ntau qhov fission thiab fragmentation yog ob txoj hauv kev ntawm kev yug me nyuam. Ntau fission yog cov txheej txheem ntawm kev faib cov niam txiv cell nucleus ntawm mitosis thiaj li tsim tau tus ntxhais nuclei thiab tom qab ntawd cov ntxhais cell. Nyob rau hauv sib piv, fragmentation yog tus txheej txheem ntawm tsuas yog rhuav cov niam txiv kab mob mus rau hauv ob peb fragments uas muaj peev xwm tsim mus rau hauv tag nrho cov kab mob tshiab. Ntau qhov fission tshwm sim feem ntau hauv cov kab mob unicellular xws li Plasmodium, amoeba, thiab lwm yam. thaum fragmentation tshwm sim nyob rau hauv multicellular kab mob xws li Spirogyra, planaria, starfish, thiab lwm yam. Yog li, qhov no yog qhov txawv ntawm ntau fission thiab fragmentation.

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