Video: Cov kab mob puas yog ib hom kab mob ntawm tes?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Teb thiab piav qhia: Virus yog tsis suav tias nyob hlwb thiab yog li ntawd tsis yog ib leeg - celled los yog multi- celled . Lawv tsuas yog suav hais tias yog cov plhaub protein
Ib yam li ntawd, tib neeg nug, puas yog kab mob unicellular lossis multicellular kab mob?
Kab mob tsis raug cais raws li cov hlwb thiab yog li ntawd tsis yog unicellular tsis yog multicellular kab mob . Cov neeg feem coob tseem tsis tau faib kab mob raws li "nyob" raws li lawv tsis muaj cov kab mob metabolic thiab nyob ntawm tus tswv tsev cov hlwb uas lawv kis mus rau kev tsim tawm.
Qhov thib ob, lub cev ib leeg hu ua dab tsi? Ib tug unicellular kab mob , kuj lub npe hu ua a ib leeg - cev xeeb tub , yog ib kab mob uas muaj a ib leeg , tsis zoo li multicellular kab mob uas muaj ntau lub hlwb. Ntau eukaryotes yog multicellular, tab sis cov pab pawg muaj xws li cov protozoa, unicellular algae, thiab unicellular fungi.
Kuj paub yog, cov kab mob puas muaj kab mob nyob?
Lawv zoo ib yam li obligate intracellular parasites raws li lawv tsis muaj txoj hauv kev rau kev yug tus kheej tawm sab nraud ntawm lub cell, tab sis tsis zoo li cov kab mob cab, kab mob feem ntau tsis suav tias yog qhov tseeb nyob kab mob.
Lub hom phiaj tseem ceeb ntawm ib lub cev ntawm ib leeg yog dab tsi?
Tag nrho ib leeg - celled kab mob muaj txhua yam uas lawv xav tau kom muaj sia nyob hauv lawv ib leeg cell . Cov hlwb no muaj peev xwm tau txais lub zog los ntawm cov molecules complex, txav mus, thiab paub txog lawv ib puag ncig. Lub peev xwm los ua cov haujlwm no thiab lwm yam haujlwm yog ib feem ntawm lawv lub koom haum.
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
Nws puas yuav ua rau pom qhov sib npaug ntawm kab sib npaug mus rau ib kab thiab los ntawm ib qho taw tes ntawm kab?
Qhov sib npaug ntawm ib kab uas yog parallel lossis perpendicular rau ib kab? Cov lus teb tau: Cov nqes hav ntawm cov kab sib npaug sib npaug. Hloov txoj kab nqes paub thiab cov kev sib koom ua ke ntawm ib qho taw tes ntawm lwm txoj kab rau hauv daim ntawv point-slope kom pom qhov sib npaug ntawm kab sib npaug
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
Cov kab mob dab tsi muaj cov phab ntsa ntawm tes nrog cov protein ntau carbohydrate?
Lub cell phab ntsa ntawm cov kab mob gram-zoo yog peptidoglycan macromolecule nrog cov khoom siv txuas ntxiv xws li teichoic acids, teichuronic acids, polyphosphates, lossis carbohydrates (302, 694)
Ib puag ncig ntawm ib lub xov tooj ntawm tes thiab cov kab mob cuam tshuam li cas ntawm cov noob caj noob ces?
Splicing ntawm mRNA nce tus naj npawb ntawm cov protein sib txawv uas lub cev muaj peev xwm tsim tau. Gene qhia yog tswj los ntawm cov proteins uas khi rau cov hauv paus hauv paus hauv DNA. Ib puag ncig ntawm ib lub xovtooj ntawm tes thiab ntawm lub cev muaj feem cuam tshuam rau cov noob caj noob ces