Qhov Tseem Ceeb Qhov txawv - Obligate vs Facultative Anaerobe
Molecular Oxygen tsis muaj nyob rau thaum pib ntawm lub ntiaj teb keeb kwm. Ib zaug, cyanobacteria pib photosynthesize, molecular oxygen tau tso rau hauv qhov chaw. Tom qab ntawd cov kab mob pib teb sib txawv rau qhov chaw muaj oxygen. Microorganisms qhia muaj ntau haiv neeg vim lawv muaj nyob txhua qhov chaw. Lawv hnov txawv txawv rau cov molecular oxygen. Raws li kev xav tau oxygen, cov kab mob tau muab faib ua ntau pawg xws li obligate aerobes, obligate anaerobes, facultative anaerobes, microaerophiles thiab aerotolerants. Obligate anaerobe yog ib yam kabmob uas raug tua los ntawm cov pa oxygen. Facultative anaerobe yog ib yam kab mob uas muaj peev xwm ua neej nyob ob qho tib si oxygen tam sim no thiab tsis muaj ib puag ncig. Qhov sib txawv tseem ceeb ntawm lub luag haujlwm thiab kev ua haujlwm anaerobe yog qhov kev txiav txim siab anaerobe tsis tuaj yeem muaj sia nyob ntawm lub xub ntiag ntawm oxygen thaum facultative anaerobe tuaj yeem muaj sia nyob hauv lub xub ntiag ntawm oxygen.
Dab tsi yog Obligate Anaerobe?
Lo lus 'Kev Ua Haujlwm' yog hais txog qhov nruj lossis yuav tsum. Obligate anaerobe yog ib yam kab mob uas xav tau ib puag ncig tsis muaj oxygen. Nyob rau hauv lub xub ntiag ntawm oxygen, obligate anaerobes raug tua vim yog lom los ntawm oxygen. Lawv tsis muaj cov enzymes xws li superoxide dismutase thiab catalase uas tsim nyog los hloov cov superoxide tuag vim muaj oxygen. Yog tias muaj cov pa oxygen, tag nrho cov haujlwm ntawm lub luag haujlwm anaerobes nres. Cov kab mob no tsis xav tau oxygen rau kev ua pa. Es tsis txhob, lawv qhia anaerobic ua pa los yog fermentation rau zus tau tej cov zog. Obligate anaerobes siv ntau hom molecules xws li sulfate, nitrate, hlau, manganese, mercury, lossis carbon monoxide ua cov khoom siv hluav taws xob rau kev ua pa. Piv txwv ntawm obligate anaerobic kab mob yog Actinomyces, Bacteroides, Clostridium spp, Fusobacterium spp, Porphyromonas spp, Prevotella spp, Propionibacterium spp, thiab Veillonella spp.
Daim duab 01: Obligate Anaerobe
Cov kab mob no tsuas muaj nyob hauv thaj chaw anaerobic xws li cov av sib sib zog nqus ntawm cov av, cov dej tseem ceeb, hauv qab dej hiav txwv tob, cov hnyuv ntawm cov tsiaj, cov dej kub thiab lwm yam. Obligate anaerobes yog qhov nyuaj rau kev kawm nyob rau hauv chav kuaj mob.. Lawv xav tau cov cuab yeej tshwj xeeb los kawm. Lub thawv anaerobic yog ib qho ntawm cov khoom siv feem ntau siv rau cov kev tshawb fawb anaerobe. Cov cuab yeej no tshem tawm cov pa oxygen los ntawm ib puag ncig sab hauv thiab ua rau nws nrog carbon dioxide.
Facultative Anaerobe yog dab tsi?
Facultative anaerobe yog ib yam kab mob uas tuaj yeem ua kom lub zog los ntawm kev ua pa aerobic thaum muaj cov pa oxygen thiab hloov mus rau kev ua pa anaerobic lossis fermentation los tsim lub zog thaum tsis muaj oxygen. Facultative anaerobes tsis tas yuav tsum tau oxygen rau kev ua pa.
Daim duab 02: Facultative Anaerobic E. coli
Qee cov kab mob uas muaj cov kab mob facultative anaerobes yog Staphylococcus spp, Streptococcus spp, Escherichia coli, Salmonella, Listeria, Corynebacterium thiab Shewanella oneidensis. Qee cov fungi xws li poov xab thiab lwm yam kuj yog facultative anaerobes.
Dab tsi zoo sib xws ntawm Obligate thiab Facultative Anaerobe?
- Ob pawg yog txhais raws li kev xav tau oxygen.
- Ob pawg tuaj yeem muaj sia nyob hauv qhov chaw tsis muaj oxygen.
- Muaj cov kab mob ua haujlwm thiab cov kab mob facultative anaerobic.
Qhov txawv ntawm Obligate thiab Facultative Anaerobe yog dab tsi?
Obligate vs Facultative Anaerobe |
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| Obligate anaerobe yog ib yam kab mob uas nyob hauv ib puag ncig anaerobic thaum tsis muaj oxygen. | Facultative anaerobe yog ib yam kabmob uas muaj peev xwm loj hlob thiab nyob hauv ib puag ncig aerobic thiab anaerobic. |
| Muaj Oxygen | |
| Obligate anaerobe raug tua nyob rau hauv lub xub ntiag ntawm oxygen. | Facultative anaerobe tsis tua nyob rau hauv lub xub ntiag ntawm oxygen. |
| Obligate anaerobe qhia anaerobic ua pa lossis fermentation. | Facultative anaerobe qhia tau hais tias aerobic ua pa, ua pa anaerobic thiab fermentation. |
| Nyob rau hauv kab lis kev cai | |
| Obligate anaerobe sib sau ua ke hauv qab ntawm kab lis kev cai raj. | Facultative anaerobe sib sau ua ke feem ntau nyob rau sab saum toj ntawm kab lis kev cai raj thiab tseem kis thoob plaws hauv kab lis kev cai nruab nrab. |
| Examples | |
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Qee yam piv txwv ntawm obligate anaerobes yog Actinomyces, Bacteroides, Clostridium, YFusobacterium, Peptostreptococcus, Porphyromonas, Pre v otella, Propionibacterium, thiab Veillonella. |
Qee yam piv txwv rau facultative anaerobes yog Staphylococcus spp, Streptococcus spp, Escherichia coli, Salmonella, Listeria, Corynebacterium thiab Shewanella oneidensis. |
Summary – Obligate vs Facultative Anaerobe
Obligate anaerobe thiab facultative anaerobe yog ob hom kab mob categorized raws li cov pa oxygen xav tau rau kev loj hlob. Obligate anaerobe nyob hauv qhov tsis muaj oxygen. Molecular oxygen yog tshuaj lom rau lub luag haujlwm anaerobes txij li tag nrho lawv cov haujlwm metabolic tau tso tseg thaum muaj oxygen. Lawv qhia anaerobic ua pa rau lub zog tsim. Facultative anaerobe yog ib yam kab mob uas muaj peev xwm nyob thiab loj hlob nyob rau hauv lub xub ntiag los yog tsis muaj molecular oxygen. Thaum cov pa oxygen tam sim no, facultative anaerobes qhia aerobic ua pa thaum lawv tuaj yeem hloov mus rau hauv fermentation lossis anaerobic ua pa thaum tsis muaj oxygen. Qhov no yog qhov txawv ntawm obligate thiab facultative anaerobe.
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Koj tuaj yeem rub tawm PDF version ntawm kab lus no thiab siv nws rau offline hom phiaj raws li daim ntawv ceeb toom. Thov rub tawm PDF version ntawm no: Qhov txawv ntawm Obligate thiab Facultative Anaerobe
