Video: Puas yog Bacillus cereus muaj tshuaj ntsiav?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
cereus g9241 ua muaj plasmid uas yog 99.6% zoo ib yam rau pXO1 plasmid los ntawm B . anthracis, tab sis ua tsis yog muaj lub pXO2 plasmid uas yuav tsum tau rau tag nrho virulence. Nws kuj muaj ib tug thib ob plasmid uas encodes rau a tshuaj ntsiav Biosynthesis operon [7].
Khaws qhov no hauv kev xav, puas yog Bacillus cereus encapsulated?
Peb tau txheeb xyuas peb encapsulated Bacillus cereus Cov kab mob, cais tawm los ntawm cov neeg mob uas muaj mob ntsws hnyav, nyob rau hauv ib phau ntawm B . cereus isolates txuam nrog tib neeg mob. Bacillus cereus yog gram-positive, spore-forming, opportunistic pathogen (5, 13).
Kuj Paub, Bacillus cereus siv rau dab tsi? Bacillus cereus Cov kab mob Gram-positive motile, yog ib qho kab mob kis tau zoo uas feem ntau ua rau cov zaub mov lom tshwm sim los ntawm cov kab mob raws plab thiab emetic, nrog rau ntau yam kab mob hauv zos thiab mob ntev, xws li: septicemia, meningitis, periodontitis, endocarditis thiab qhov txhab. kab mob
Hauv qhov no, Bacillus subtilis puas muaj tshuaj ntsiav?
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 endospore, kom muaj sia nyob ib puag ncig huab cua kub thiab desiccation.
Bacillus cereus pom nyob rau hauv dab tsi?
Bacillus cereus feem ntau yog kab mob pom hauv av. Nws ua rau cov zaub mov lom thaum tib neeg noj cov zaub mov tsis huv xws li nqaij, ntses, kua zaub, lossis zaub uas tsis tau khaws cia kom zoo. Lawv sib faib sai thiab tsim cov co toxins uas ua rau raws plab thiab ntuav.
Pom zoo:
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 muaj cov poov tshuaj ntau dua li neon muaj lossis tsis yog?
Potassium muaj pes tsawg tus electrons ntau dua Neon
Yog vim li cas sodium poov tshuaj twj tso kua mis suav hais tias yog ib qho kev thauj mus los uas cov kev taw qhia yog cov sodium thiab poov tshuaj tau pumped?
Sodium-Potassium Pump. Kev thauj mus los yog lub zog xav tau cov txheej txheem ntawm kev siv cov molecules thiab ions hla daim nyias nyias 'nce toj' - tiv thaiv kev sib tw gradient. Txhawm rau txav cov molecules tawm tsam lawv cov concentration gradient, yuav tsum muaj cov khoom siv protein
Puas yog tag nrho cov kab mob muaj cov tshuaj ntsiav?
Cov kab mob capsule yog cov qauv loj heev ntawm ntau cov kab mob. Cov tshuaj ntsiav - uas tuaj yeem pom nyob rau hauv ob qho tib si gram tsis zoo thiab gram-zoo kab mob - txawv ntawm qhov thib ob lipid daim nyias nyias - cov kab mob sab nrauv, uas muaj lipopolysaccharides thiab lipoproteins thiab pom tsuas yog hauv cov kab mob gram-tsis zoo
Dab tsi yog tshuaj lom neeg cov tshuaj tiv thaiv thiab cov tshuaj tiv thaiv lub cev?
Qhov sib txawv ntawm cov tshuaj tiv thaiv lub cev thiab cov tshuaj tiv thaiv tshuaj yog muaj pes tsawg leeg. Hauv cov tshuaj tiv thaiv tshuaj, muaj kev hloov pauv ntawm cov tshuaj hauv nqe lus nug; nyob rau hauv ib qho kev hloov ntawm lub cev muaj qhov sib txawv ntawm qhov tsos, tsis hnov tsw, los yog cov duab yooj yim ntawm cov qauv ntawm cov teeb meem yam tsis muaj kev hloov pauv hauv cov ntsiab lus