Video: Vim li cas cov genes raug xa mus ua ib qho kev hloov pauv?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Genes hu ua raws li cov keeb kwm koj yog vim lawv nqa caj ces cov ntaub ntawv qhia cov niam txiv rau cov menyuam yaus / tawm qhov chaw tawm. Cov kab mob tshwm sim : Genes yog muaj nyob rau hauv chromosomes ntawm DNA. Cov noob nqa cov cim los ntawm niam txiv mus rau cov xeeb ntxwv uas yog lub luag haujlwm rau kev hloov pauv ntawm keeb kwm tus cwj pwm.
Ib yam li ntawd, tib neeg nug, vim li cas cov noob hu ua noob caj noob ces?
Cov noob nqa caj ces cov ntaub ntawv qhia niam txiv rau menyuam yaus. Lawv yog cov tawg ntawm DNA. Cov noob yog cov cab kuj caj ces raws li lawv nqa lub caj ces cov ntaub ntawv tiam tom qab tiam tsis muaj kev hloov pauv ntau hauv nws. Yog vim li ntawd lawv thiaj yog hu ua keeb kwm units.
Qhov thib ob, koj puas tau txais ntau dua los ntawm niam lossis txiv? Cov noob caj noob ces, koj yeej nqa ntau ntawm koj niam gene tshaj koj txiv . Tias yog vim li cas me me organelles nyob hauv koj lub hlwb, mitochondria, uas koj tsuas tau txais los ntawm koj niam.
Xav txog qhov no, qhov txawv ntawm caj ces thiab caj ces yog dab tsi?
Nkag siab txog kev hloov pauv Txhua tus mob qog noj ntshav yog " caj ces ,” txhais tau tias lawv muaj a caj ces hauv paus. Cov noob yog hauv DNA ntawm txhua lub cell hauv lub cev, thiab lawv tswj cov cell loj hlob, faib, thiab tuag li cas. Qee qhov kev hloov pauv no yog " keeb kwm ,” txhais tau hais tias lawv tau dhau los ntawm koj niam lossis txiv thiab txhim kho hauv plab.
Dab tsi yog keeb kwm ntawm keeb kwm?
Keeb kwm , tseem hu ua qub txeeg qub teg los yog kev lom neeg qub txeeg qub teg, yog qhov kev ua txhaum ntawm niam txiv mus rau lawv cov xeeb ntxwv; los ntawm kev yug me nyuam los ntawm kev sib deev los yog kev sib deev, cov xeeb ntxwv los yog cov kab mob kis tau cov ntaub ntawv caj ces ntawm lawv niam lawv txiv.
Pom zoo:
Vim li cas cov hnub qub dhau los ntawm kev hloov pauv hloov pauv?
Stellar evolution yog tus txheej txheem uas lub hnub qub hloov pauv nyob rau lub sijhawm. Cov hnub qub uas muaj tsawg kawg yog ib nrab ntawm lub hnub tuaj yeem pib tsim lub zog los ntawm kev sib xyaw ntawm helium ntawm lawv cov tub ntxhais, thaum lub hnub qub ntau dua tuaj yeem sib xyaw cov ntsiab lus hnyav dua raws li cov khoom sib xyaw ua ke
Vim li cas tom qab kev hloov pauv kev hloov pauv tseem ceeb?
Kev hloov pauv tom qab kev txhais lus (PTMs) xws li glycosylation thiab phosphorylation ua lub luag haujlwm tseem ceeb ntawm kev ua haujlwm ntawm hemostatic proteins thiab tseem ceeb heev hauv kev teeb tsa kab mob. Xws li theem nrab hloov pauv rau cov proteins hemostatic muaj ntau yam cuam tshuam rau lawv lub peev xwm los cuam tshuam nrog lwm cov proteins
Dab tsi tsim cov roj siab thiab nws hloov pauv li cas nrog kev hloov pauv hauv kinetic zog?
Gas siab yog tshwm sim los ntawm kev sib tsoo ntawm cov khoom siv roj nrog rau sab hauv ntawm lub thawv thaum lawv sib tsoo nrog thiab tawm dag zog rau ntawm phab ntsa ntim. Tom qab ntawd cov roj yog cua sov. Raws li qhov kub ntawm cov roj nce, cov khoom tau nce lub zog kinetic thiab lawv cov nrawm nrawm
Cov kev hloov ntawm lub cev txawv ntawm cov tshuaj hloov pauv li cas muab ib qho piv txwv ntawm txhua tus?
Kev hloov tshuaj lom neeg tshwm sim los ntawm cov tshuaj tiv thaiv tshuaj, thaum lub cev hloov pauv yog thaum cov teeb meem hloov pauv tab sis tsis yog tshuaj lom neeg. Piv txwv ntawm kev hloov tshuaj lom neeg yog hlawv, ua noj, xeb, thiab rotting. Piv txwv ntawm kev hloov lub cev yog boiling, melting, khov, thiab shredding
Thaum ib qho kev sib cais ua rau muaj kev hloov pauv hloov pauv ntawm lub ntiaj teb nce ntxiv?
Txij li thaum lub kaw lus raug cais tawm, tsis muaj cua sov tuaj yeem khiav tawm (tus txheej txheem yog li adiabatic), yog li thaum lub zog ntws tawm hauv lub cev, qhov entropy ntawm qhov system nce, piv txwv li Δ Ssys> 0. Yog li ntawd, lub entropy ntawm lub system yuav tsum tau nce rau ib tug spontaneous txheej txheem nyob rau hauv no cais system