Bacteria vs poov xab
Cov kab mob microorganisms yog ib pawg neeg muaj ntau hom kab mob. Cov kab mob muaj xws li kab mob, cyanobacteria, protozoa, qee cov algae, fungi thiab kab mob.
Bacteria
Cov kab mob tau pom thawj zaug hauv xyoo 1674. Lub npe tau los ntawm Greek lo lus "tus pas me". Cov kab mob yog unicellular thiab feem ntau yog ob peb micrometers ntev. Lawv muaj ntau hom duab. Lawv tuaj yeem tshwm sim raws li txuas rau ntawm qhov chaw. Lawv tsim biofilms muaj ntau hom. Lawv thickness tuaj yeem yog ob peb micrometers mus rau ob peb centimeters. Muaj ntau yam duab xws li cocoid, bacilli, kauv, comma thiab filamentous. Tsis muaj daim nyias nyias khi organelles. Lawv tsis muaj nucleus, mitochondria, chloroplasts, golgi lub cev thiab ER. DNA muaj nyob rau hauv cytoplasm, nyob rau hauv ib cheeb tsam hu ua nucleoid. DNA yog coiled heev. 70+ hom ribosomes tam sim no. Cell phab ntsa muaj peptidoglycans. Cov kab mob Gram zoo muaj cov phab ntsa tuab tuab nrog ntau txheej ntawm peptidoglycan. Gram negative bacteria cell phab ntsa muaj ob peb txheej nyob ib puag ncig ntawm lipid txheej.
Ib tug me me DNA molecule kuj tseem muaj. Nws yog hu ua plasmid. Lub plasmid yog ncig thiab muaj cov khoom siv chromosomal ntxiv. Nws undergoes tus kheej replication. Lawv nqa cov ntaub ntawv ntawm caj ces. Txawm li cas los xij, plasmid tsis yog qhov tseem ceeb rau kev ciaj sia ntawm lub cell. Flagella yog cov qauv tsim muaj protein ntau siv hauv kev txav mus los. Fimbriae yog cov nplua nuj filaments ntawm cov protein koom nrog hauv kev txuas. Slime txheej yog ib txheej disorganized ntawm ntxiv cellular polymers. Capsule yog cov qauv polysaccharide nruj. Nws tseem hu ua glycocalyx. Lub capsule muab kev tiv thaiv. Nws muaj polypeptides. Yog li nws tiv thaiv phagocytosis. Capsule koom nrog hauv kev lees paub, ua raws thiab tsim cov biofilms. Capsule yog txuam nrog cov pathogenesis. Qee qhov tsim cov endospores uas yog cov qauv uas muaj zog heev.
Yeast
Paj yog kab mob. Cov fungi yog eukaryotes. Feem ntau ntawm cov uas yog multicellular nrog lub cev vegetative tsim ib mycelium, tab sis poov xab yog unicellular. Fungi yog ib txwm heterotrophic, thiab lawv yog cov loj decomposers nyob ntawm cov organic teeb meem tuag. Decomposers yog saprophytes. Lawv secrete ntxiv cellular enzymes zom cov organic teeb meem thiab nqus cov khoom yooj yim tsim.
Kev faib tawm ntawm cov fungi yog raws li 2 lub ntsiab yam ntxwv. Cov no yog cov yam ntxwv morphological ntawm vegetative mycelia thiab cov yam ntxwv thiab cov kabmob thiab cov spores tsim tawm hauv kev sib deev thiab kev sib deev. Fungi tau muab faib ua 3 pawg loj Zygomycetes, Ascomycetes thiab Basidiomycetes. Poov xab yog ib tug unicellular Ascomycetes fungus. Nws yog ib tug saprophytic fungus loj hlob nyob rau hauv qab zib media. Nws yog puag ncig los yog spherical los yog oval nyob rau hauv cov duab. Nws muaj ib tug nucleus. Nyob rau hauv nruab nrab ntawm lub cell yog ib tug zoo cim vacuole nrog granular tshuaj ncua nyob rau hauv nws. Ib txwm eukaryotic organelles tsuas yog chloroplasts pom nyob rau hauv lub hlwb. Lipid thiab volutene granules kuj tseem muaj. Nyob ib ncig ntawm lub cell yog ib lub cell phab ntsa. Tsis muaj chitin nyob rau hauv lub cell phab ntsa. Hom hom ntawm asexual reproduction yog budding. Thaum muaj kev sib deev kev sib deev ascusspores hauv asci raug tsim, tab sis tsis muaj ascocarps tsim.
Dab tsi yog qhov txawv ntawm Kab Mob thiab Kab Mob?
Cov kab mob yog prokaryotes thiab cov poov xab yog cov fungi uas yog eukaryotes. 2 hom kab mob sib txawv.
• Hauv cov kab mob tsis muaj cov nucleus thiab hauv cov poov xab muaj cov nucleus.
• Hauv cov kab mob tsuas muaj ib lub voj DNA xwb. Hauv cov poov xab, muaj ob peb kab DNA.
• Hauv cov kab mob nucleolus tsis tuaj thiab hauv cov poov xab nucleolus muaj nyob rau hauv lub nucleus.
• Nyob rau hauv cov kab mob 70s ribosomes muaj. Hauv cov poov xab 80s ribosomes tam sim no.
