Video: Dab tsi yog qhov tseem ceeb ntawm cov atom?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Atoms yog tsim los ntawm protons , neutrons , thiab electrons . Cov classical subatomic particles muaj cov hauv paus los yog theem pib ntawm cov teeb meem. Txij li thaum lawv tseem yog cov khoom me me, lawv muaj qhov loj thiab loj. Cov ntsiab lus tseem ceeb yog pawg ua lepton thiab quarks.
Ntawm no, peb qhov tseem ceeb ntawm ib qho atom yog dab tsi?
Peb lub ntsiab subatomic hais uas tsim ib qho atom yog protons , neutrons , thiab electrons . Qhov chaw ntawm lub atom hu ua lub nucleus. Ua ntej, cia peb kawm me ntsis txog protons thiab neutrons , thiab tom qab ntawd peb yuav tham txog electrons me ntsis tom qab. Protons thiab neutrons ua lub nucleus ntawm ib lub atom.
Dhau li ntawm saum toj no, dab tsi yog 12 lub ntsiab lus tseem ceeb? 12 lub hauv paus ntsiab lus ntawm cov teeb meem yog rau quarks (up, charm, top, Down, strange, qab) 3 electrons (electron, muon, tau) and three neutrinos (e, muon, tau). Plaub ntawm cov ntsiab lus tseem ceeb no yuav tsim nyog los tsim lub ntiaj teb nyob ib puag ncig peb: nce thiab nqis quarks , electron thiab electron neutrino.
Ib sab saum toj no, muaj pes tsawg lub ntsiab lus tseem ceeb?
Lub sijhawm no peb tau suav rau txhua qhov cov khoom xav tau los ntawm tus qauv qauv: rau lub zog cov khoom ,,24 txo cov khoom thiab ib tug Higgs particle - tag nrho ntawm 31 cov khoom tseem ceeb.
Nws txhais li cas yog hais tias ib tug particle yog qhov tseem ceeb?
Hom ntawm Fundamental Particles Fundamental particles (tseem hu ua elementary hais ) yog lub tsev me tshaj plaws ntawm lub qab ntuj khwb. Tus yam ntxwv tseem ceeb ntawm cov khoom tseem ceeb yog tias lawv tsis muaj cov qauv tsim sab hauv. Hauv lwm lo lus, lawv yog tsis ua los ntawm lwm yam.
Pom zoo:
Vim li cas qhov tseem ceeb ntawm qhov tseem ceeb?
Thaum koj pom tus nqi kiag li hauv qhov teeb meem lossis qhov sib npaug, nws txhais tau hais tias txhua yam nyob hauv tus nqi tiag tiag yog qhov zoo. Cov txiaj ntsig tsis zoo feem ntau siv rau hauv cov teeb meem cuam tshuam nrog kev nyob deb thiab qee zaum siv nrog qhov tsis sib xws. Qhov ntawd yog qhov tseem ceeb uas yuav tsum nco ntsoov nws zoo li qhov deb ntawm xoom
Ob qhov tseem ceeb ntawm lub voj voog ntawm tes yog dab tsi thiab dab tsi tshwm sim rau lub cell hauv txhua theem?
Muaj ob theem tseem ceeb hauv lub voj voog ntawm tes. Thawj theem yog interphase thaum lub cell loj hlob thiab replicates nws DNA. Qhov thib ob yog theem mitotic (M-Phase) thaum lub sijhawm cell faib thiab hloov ib daim qauv ntawm nws cov DNA mus rau ob lub hlwb zoo tib yam
Dab tsi yog 2 qhov tseem ceeb ntawm lub voj voog ntawm tes thiab dab tsi tshwm sim rau lub cell hauv txhua theem?
Cov xwm txheej no tuaj yeem muab faib ua ob qhov tseem ceeb: interphase (hauv nruab nrab ntawm kev sib faib theem ua pawg G1 theem, S theem, G2 theem), thaum lub xov tooj ntawm tes tsim thiab ua nrog nws cov haujlwm metabolic; mitotic theem (M mitosis), thaum lub sij hawm lub cell yog replicating nws tus kheej
Dab tsi yog qhov txawv ntawm cov khoom tseem ceeb thiab cov kab hauv cov dej hiav txwv?
Ib cag ntawm 12 lub ntsiab lus uas yog cov ntsiab lus tseem ceeb lossis cov ntsiab lus me thiab qee cov ntsiab lus uas yog cov roj yaj, tag nrho lwm cov ntsiab lus yaj hauv dej hiav txwv muaj nyob rau hauv cov ntsiab lus tsawg dua 1 ppm thiab hu ua cov kab hauv qab. Ntau cov kab ke tseem ceeb rau lub neej
Dab tsi yog qhov tseem ceeb tshaj plaws uas yuav tsum muaj rau cov kua dej ntws hauv cov kav dej Dab tsi lwm yam cuam tshuam rau cov dej ntws?
Thaum ib qho kev quab yuam sab nraud yog exerted rau ntawm cov kua uas muaj, qhov tshwm sim siab yog kis sib npaug thoob plaws hauv cov kua. Yog li txhawm rau kom dej ntws, dej xav tau qhov sib txawv siab. Cov kav dej kuj tuaj yeem cuam tshuam los ntawm cov kua dej, cov yeeb nkab loj, qhov kub thiab txias (cov kav dej khov), cov kua dej ntom ntom