Video: Kab mob flagella yog dab tsi?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Cov kab mob flagella yog cov qauv zoo nkauj uas muaj cov protein flagellin. Lub hauv paus ntawm flagellum (nuv) nyob ze ntawm lub xovtooj ntawm tes tau txuas rau lub cev hauv qab uas ntim rau hauv lub hnab ntawv. Cov flagellum tig nyob rau hauv clockwise los yog counterclockwise kev taw qhia, nyob rau hauv cov lus tsa suab zoo ib yam li ntawm lub kiv cua.
Tom qab ntawd, ib tus kuj tseem yuav nug tau tias, kab mob flagella ua haujlwm li cas?
Flagella yog ntev, nyias, nplawm zoo li nplov txuas nrog cov kab mob ntawm tes uas tso cai rau cov kab mob zog . Qee cov kab mob muaj ib tus flagellum nkaus xwb, hos lwm tus muaj ntau flagella nyob ib puag ncig ntawm tes.
Ib sab saum toj no, hom kab mob twg muaj flagella? Hom thiab Piv Txwv ntawm Flagella
- Monotrichous. - Ib leeg polar flagellum. - Piv txwv: Vibrio cholerae.
- Amphitrichous. - Tib flagellum ntawm ob sab. - Piv txwv: Alkaligens faecalis.
- Lophotrichous. - Tufts ntawm flagella ntawm ib lossis ob sab. - Piv txwv: Spirillum.
- Peritrichous. - Ntau tus falgella thoob plaws lub cev cov kab mob.
Tom qab ntawd, ib tus tseem tuaj yeem nug, kab mob flagella ua los ntawm dab tsi?
Qauv thiab muaj pes tsawg leeg kab mob flagellum yog ua nce ntawm cov protein flagellin. Nws cov duab yog 20-nanometer-tuab hollow raj. Nws yog helical thiab muaj qhov khoov ntse nyob sab nraud ntawm daim nyias nyias; qhov "nuv" no tso cai rau lub axis ntawm lub helix taw tes ncaj qha ntawm lub cell.
Muaj pes tsawg tus flagella ua cov kab mob?
Nws yog lub locomotive organelle ntawm motile kab mob xws li Selenomonas thiab Wolinella succinogenes. Cov flagellum yog tsim los ntawm peb ntu: lub cev hauv paus, nqes, thiab cov ntsiab lus (Daim duab 1.7 (A)). Txawv kab mob tau muaj nyob qhov twg los ntawm ib lossis ob flagella rau pua pua flagella (Daim duab 1.7 (B)).
Pom zoo:
Qhov sib txawv ntawm Bergey Phau Ntawv Teev Npe ntawm Kev Txiav Txim Siab Kab Mob thiab Bergey Phau Ntawv Qhia Txog Kab Mob Kab Mob Li Cas?
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