Video: Cov kab mob stinging hu ua dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Txhua tus Cnidarians muaj tentacles nrog stinging hlwb nyob rau hauv lawv cov lus qhia uas yog siv los ntes thiab subdue prey. Qhov tseeb, lub npe phylum "Cnidarian" txhais tau tias " txhav tus tsiaj." Lub stinging hlwb yog hu ua cnidocytes thiab muaj cov qauv hu ua ib tug nematocyst. Lub nematocyst yog ib tug coiled xov zoo li stinger.
Kuj paub yog, dab tsi yog stinging hlwb?
Cnidarians muaj kev tshwj xeeb hlwb lub npe hu ua cnidocytes ( stinging hlwb ”) muaj organelles hu ua nematocysts (stingers). Cov no hlwb muaj nyob ib ncig ntawm lub qhov ncauj thiab tentacles, thiab pab immobilize prey nrog toxins muaj nyob rau hauv lub hlwb . Nematocysts muaj cov xov coiled uas tuaj yeem dais barbs.
Tsis tas li ntawd, Cnidoblasts lossis stinging hlwb yog dab tsi? CNIDOBLASTS YOG TXOJ KEV CELLS Pom hauv CIDARIA. PUAS YOG IB TUG NEEG A TXOJ KEV CELL ORGANELLE HU NEMATOCYST. Cnidoblast yog a cell nyob rau hauv lub epidermis ntawm coelenterates nyob rau hauv uas ib tug nematocyst yog tsim. hauv ib leeg cnidoblast yog ib tug coiled xov, ib tug nematocyst, uas explodes tawm ntawm lub cell.
Yog li ntawd, cov kab mob stinging nyob qhov twg?
Nyob ntawm lawv cov tentacles, jellyfish stinging hlwb hu ua cnidocytes.
Dab tsi yog qhov stinging hlwb ntawm Hydra?
Stinging Cells . Cov hydra cov kab mob stinging paub zoo dua li cnidocytes, uas npog sab nraud ntawm lawv cov tentacles. Cov hydra ua siv cov barbed, lom hlwb mus ntes thiab stun prey xws li dej fleas thiab plankton.
Pom zoo:
Cov kab mob puas kis cov kab mob eukaryotic?
Ib lub cell uas muaj kab mob ua rau cov kab mob kis tau ntau dua thiab cov khoom siv caj ces es tsis yog nws cov khoom qub. Qee cov kab mob yuav nyob twj ywm hauv cov tswv tsev rau lub sijhawm ntev, ua rau tsis muaj kev hloov pauv hauv lawv cov tswv tsev (ib theem hu ua lysogenic theem). Cov kab mob ua rau muaj ntau yam kab mob hauv eukaryotes
Cov tshuaj tua kab mob twg thaiv cov kab mob protein ntau?
Tetracyclins yog ib hom tshuaj tua kab mob uas suav nrog cov thawj tetracycline nrog rau doxycycline thiab minocycline. Cov tshuaj tua kab mob no khi rau A qhov chaw ntawm 30s ribosome, tiv thaiv tRNA los ntawm kev nqa cov amino acids tshiab. Yog tias tRNA tsis tuaj yeem txuas mus rau ribosome, ces tsis muaj cov proteins tshiab tuaj yeem ua tau
Cov kab mob twg muaj cov kab mob eukaryotic?
Cov kab mob thiab Archaea tsuas yog prokaryotes. Cov kab mob uas muaj eukaryotic hlwb hu ua eukaryotes. Tsiaj txhu, nroj tsuag, fungi, thiab protists yog eukaryotes. Tag nrho cov kab mob multicellular yog eukaryotes
Cov kab mob thiab cov kab mob ua haujlwm zoo li cas?
Ob leeg cov kab mob thiab cov kab mob muaj cov phab ntsa ntawm tes (txawm hais tias sib txawv hauv cov qauv thiab muaj pes tsawg leeg) Feem ntau cov kab mob thiab cov kab mob tau txais lub zog los ntawm kev ua pa aerobic (ua pa hauv cov kab mob me ntsis txawv dua li hauv Eukaryotes tab sis cov pa oxygen ib txwm xav tau rau oxidise suab thaj, hauv dej kawg. thiab carbon dioxide yog tsim)
Dab tsi yog cov kab mob piav qhia cov kab mob ntawm tes hauv kev nthuav dav?
Cov kab mob yog cov prokaryotes, tsis muaj cov nuclei zoo thiab cov kab mob sib txuas ua ke, thiab nrog cov chromosomes tsim los ntawm ib lub voj voog DNA kaw. Lawv tuaj nyob rau hauv ntau yam duab thiab ntau thiab tsawg, los ntawm feeb spheres, cylinders thiab kauv threads, rau flagellated rods, thiab filamentous chains