Video: Puas yog bacillus muaj endospores?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Endospores pab kom cov kab mob pw tsaug zog rau lub sijhawm ntev, txawm ntau pua xyoo. Feem ntau hom kab mob tsis tuaj yeem hloov mus rau qhov endospores daim ntawv. Piv txwv ntawm cov kab mob genera uas tuaj yeem tsim endospores suav nrog Bacillus cereus, Bacillus anthracis, Bacillus Thuringiensis, Clostridium botulinum, thiab Clostridium tetani.
Ntawm no, puas yog Bacillus subtilis Endospore?
Bacillus subtilis yog kab mob Gram-positive, qwj-zoo li tus thiab catalase-zoo. Raws li nrog rau lwm cov tswv cuab ntawm genus Bacillus , nws tuaj yeem tsim ib qho endospores , kom ciaj sia ib puag ncig huab cua kub thiab desiccation.
Tsis tas li ntawd, tuberculosis puas yog Endospore? Lub genus Mycobacterium, uas yog tus tswv cuab ntawm pawg G + C siab ntawm cov kab mob Gram-zoo, suav nrog cov kab mob tseem ceeb, xws li M. tuberculosis thiab M. bovis bacillus Calmette-Guérin tsim ib hom spore hu ua endospores , uas tau pom tsuas yog nyob rau hauv qis G + C pawg ntawm Gram-zoo kab mob.
Raws li txoj cai, vim li cas Bacillus sp tsim Endospore?
9.4 ib. Physiological adaptation nyob rau hauv lub endospores ntau lawm yog ib tug tseem ceeb heev ciaj sia taus yam ntxwv ntawm ib co Gram-zoo rods xws li hom ntawm Bacillus thiab Clostridium. Endospore kev tsim yog feem ntau tshwm sim los ntawm qhov tsis muaj cov as-ham; nws yog ib tug stripped-down, dormant daim ntawv uas cov kab mob tuaj yeem txo nws tus kheej.
Cov kab mob endospores yog dab tsi?
Ib endospores yog ib qho dormant, tawv, tsis muaj kev sib deev qauv tsim los ntawm ib tug me me ntawm kab mob los ntawm tsev neeg Firmicute. Lub luag haujlwm tseem ceeb ntawm feem ntau endospores yog los xyuas kom muaj sia nyob ntawm a kab mob los ntawm lub sij hawm ntawm ib puag ncig kev nyuaj siab.
Pom zoo:
Puas yog nws muaj tseeb tias nyob rau hauv kev thauj mus los ntawm kev txav ntawm cov khoom hla ib daim nyias nyias yuav tsum muaj zog?
Hauv kev thauj mus los passive, kev txav ntawm cov khoom hla ib daim nyias nyias yuav tsum muaj zog. _ Muaj tseeb_ 5. Endocytosis yog ib txoj kev uas ib lub cell membrane nyob ib puag ncig thiab siv cov khoom los ntawm ib puag ncig. Ib daim nyias nyias uas tso cai rau qee cov ntaub ntawv dhau los qhia txog kev xaiv permeability
Puas yog HClO muaj zog lossis tsis muaj zog?
HClO yog ib qho kua qaub raws li nws muaj cov proton uas nws tso tawm tab sis nws yog ib qho tsis muaj zog acid vim nws tsis yog ib qho acidamoung cov npe ntawm cov kua qaub muaj zog
Puas yog ib qho tsis muaj polar molecule puas muaj hydrogen bonding?
Yog hais tias lub molecule tsis yog polar, ces tsis muaj kev sib cuam tshuam dipole-dipole los yog hydrogen bonding tuaj yeem tshwm sim thiab tsuas yog ua tau intermolecular quab yuam yog lub zog van der Waals tsis muaj zog
Muaj pes tsawg guanine bases puas yog 50 lub hauv paus khub ob txoj hlua DNA 100 bases tag nrho muaj yog tias nws muaj 25 adenine bases?
Yog li, muaj tag nrho ntawm 25 + 25 = 50 adenine thiab thymine hauv tag nrho. Qhov ntawd tawm 100− 50 = 50 seem hauv paus. Nco ntsoov tias cytosine thiab guanine daim ntawv cog lus nrog ib leeg, thiab yog li lawv sib npaug ntawm cov nyiaj. Tam sim no peb tuaj yeem faib los ntawm 2 kom tau txais tus lej ntawm guanine lossis cytosine hauv paus
Puas yog Bacillus cereus muaj tshuaj ntsiav?
Cereus G9241 muaj plasmid uas yog 99.6% zoo ib yam rau pXO1 plasmid los ntawm B. anthracis, tab sis tsis muaj pXO2 plasmid uas yuav tsum tau rau tag nrho virulence. Nws kuj muaj qhov thib ob plasmid uas encodes rau lub capsule biosynthesis operon [7]