Cell mosebetsi e bohareng li-cell

Lisele tsa lintho tse phelang tsohle tse phelang li na le mohaho o tšoanang. Kaofela ha bona ba entsoe ka lero la mali lera enfelopo potoloha (glycocalyx liphoofolong kapa leboteng seleng ea:-fungus - tsa chitin ka dimela - selulose), cytoplasm (ka tse teng organelles, mong le e mong eo o etsa mesebetsi ea eona, setsi seleng, mohlala kopanelang papaling ea ho ka karohano) le khubu, e sireletsa DNA (ntle le bakeng sa prokaryotes).

organelles seleng ea

Tsena li akarelletsa ribosomes, lysosomes, mitochondria, sethusathuto Golgi, endoplasmic reticulum le setsi sa seleng. Ka dimela lisele tse e boetse e na le organelles itseng tse ikhethang oa ho bona - e vacuole. Ba ipokellela dintho batleheng plastids (chromoplasts, leucoplasts, chloroplasts, ka bobeli le hlaha thulaganyou e photosynthetic). Mesebetsi ya bohareng seleng, mitochondria, ribosomes le likarolo tse ling ke tsa bohlokoa haholo. Mitochondria bapala karolo ea liteishene matla molokong o mong ka e ikhethang, ho na le ke tshebetso eo ho eona intracellular respiration. Ribosomes ba na le boikarabelo bakeng sa tlhahiso ea liprotheine ke synthesizing ba ho tswa ho-amino acid motho ka ho ba teng ha mRNA, e tlalehiloeng tlhahisoleseding e mabapi le dintho ho hlokahala seleng. mesebetsi Lysosomal ke ka bokaholimo ba matsoele tsa metsoako lik'hemik'hale sebelisa enzyme, tse leng ka hare ho organelle ena. Golgi sethusathuto bokella le e lule e dintho tse itseng. Endoplasmic reticulum e boetse ke ka setotsoana metabolism.

Lisele Center - sebopeho le mosebetsi

organelle ena o bitsoa centrosome. Mesebetsi ya bohareng seleng e ke ho le thata ho feteletsa - ntle organelle ena e ne e tla ke ke ha khoneha ho karohano seleng. Ho na le likarolo tse peli. Ka bohareng seleng ea ena e tšoanang le ribosome e, sebōpeho sa eo e boetse e akarelletsa dihalofo tse pedi. Karolo centrosome bitsoa centrioles, e mong le e ba bona ba shebahala joaloka silindara sekoti thehoa ya microtubules. Di lokisetsa perpendicular mong ho e mong. Mesebetsi ya bohareng seleng ea ka sebōpeho centrioles leakage radiation nakong mitosis kapa meiosis.

Ka arola seleng ea ka?

Ho na le litsela tse peli tse ka sehloohong - meiosis le mitosis. mesebetsi setsi seleng ea li bonahatsoa ka dithulaganyo ka bobeli. Le ka Maemong a pele le la bobeli, karohano ho etsahala ka mekhahlelo e 'maloa. Abelwang karolo ya mekhahlelo e latelang: prophase, metaphase, anaphase, telophase. Meiosis hangata ho akarelletsa ho tse peli tse latellanang karohano seleng, nako eo pakeng tsa bona o bitsoa interphase. Ka lebaka leo, tshebetso ya ho lisele tse le chromosomes diploid phase (habeli) Ho thehoa le multiple haploid (le 'ngoe). palo ea chromosomes nakong mitosis ha fokotswa - lisele tse morali hape rua ka diploid phase. Ho na le boetse ho na le mokhoa bakeng sa ho arola e amitosis. Tabeng ena, ea mantlha, 'me joale e ntan'o ba cytoplasm kakaretso feela arola ka ba babeli. mofuta ona hase joaloka batho ba tloaelehileng joaloka pele tse peli, ho hlaha ka bogolosegolo har'a bonolo. setsi sa Cell ka tshebetso ena ha se amehang ho eona.

Ho kopanela petsoha ha setsi sa li-cell

ho bolela Prophase lokisetsa tshebetso ya ho mitosis kapa meiosis, ho lera ea nyutlelie heletsa bolelele ba eona. Nakong metaphase setsi seleng ea e hakolla ka centrioles tse peli tse arohaneng. Ba, le eena, ba qhalakanyetsa ho lipalo bo fapaneng ea sele. Mothating ona, ho chromosomes Teng fihlela hammoho equator. Joale ba threaded leakage radiation khomaretse centrioles e le hore chromatids e fapaneng ya e mong le chromosome li ne li khomaretse centrioles bo fapaneng. Ho pholletsa le e mong le e chromosome metaphase e petsoha ka chromatids arohaneng hore centrioles liletsa tse likhoele le lipalo bo fapaneng hohela. Nakong ea telophase khetla ea nyutlelie e thehoa, e cytoplasm arola 'me qetellong ha thehoa le ka liseleng tsa morali.