Cov txheej txheem:
Video: Koj puas tuaj yeem ua kom cov khoom ntawm tej yam tsis txav mus los?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov cov khoom ua tsis tau txav ib ncig ntawm tag nrho . Cov cov khoom txawm li cas los xij, tseem nyob hauv tsab ntawv tsa suab . Cov khoom nyob rau hauv cov khoom yog ib txwm vibrating ( tsiv rov qab thiab tawm) hauv qhov chaw. Kev vibrational tsab ntawv tsa suab ntawm cov khoom nyob rau hauv cov khoom yog kinetic zog.
Xav txog qhov no, yuav ua li cas thaum cov khoom tsis txav mus los?
Tsis yog xoom yog qhov kub thiab txias ntawm qhov cov khoom ntawm cov teeb meem (molecules thiab atoms) yog ntawm lawv cov ntsiab lus qis zog. Qee tus neeg xav tias qhov tsis muaj tseeb cov khoom poob tag nrho lub zog thiab nres tsiv . Yog li ntawd, a particle ua tsis tau kiag li nres vim ces nws txoj hauj lwm thiab lub zog yuav paub.
Ib yam li ntawd, yuav ua li cas rau cov khoom thaum cov khoom hloov lub xeev? Qhov sib ze, kev npaj thiab kev txav ntawm lub cov khoom hauv a tshuaj hloov thaum nws hloov lub xeev . Thaum a yam khoom yog rhuab, nws sab hauv zog nce: lub zog ntawm nws cov khoom nce. daim ntawv cog lus nruab nrab cov khoom tawg thaum a yam khoom melts los yog evaporates, los yog sublimes los tsim ib tug gas los ntawm ib tug khoom.
Kuj paub yog, puas yog ib txwm txav?
Cov hais tias tag nrho cov cov khoom uas make up matter yog tas li hauv tsab ntawv tsa suab . Yog li ntawd, tag nrho cov khoom nyob rau hauv qhov teeb meem muaj kinetic zog. Lub kinetic txoj kev xav ntawm cov teeb meem pab piav qhia txog lub xeev sib txawv ntawm cov teeb meem-khoom, kua, thiab roj. Cov khoom tsis txhob ib txwm txav mus nyob rau tib lub ceev.
Koj tuaj yeem ua pov thawj li cas tias cov khoom ntawm cov teeb meem txuas mus ntxiv?
Cov piv txwv uas qhia tau hais tias cov khoom ntawm cov khoom txuas mus ntxiv yog raws li hauv qab no:
- Cov ntxhiab tsw ntawm cov khoom noj uas ua rau hauv chav ua noj ncav cuag peb txawm tias nyob deb heev.
- Cov tswm ciab ntawm cov tswm ciab tawg thoob plaws ib ncig.
- Cov ntxhiab tsw ntawm cov tshuaj tsw qab kis tau vim yog qhov sib txawv ntawm cov naj hoom vapors rau hauv huab cua.
Pom zoo:
Puas yog nws muaj tseeb tias nyob rau hauv kev thauj mus los ntawm kev txav ntawm cov khoom hla ib daim nyias nyias yuav tsum muaj zog?
Hauv kev thauj mus los passive, kev txav ntawm cov khoom hla ib daim nyias nyias yuav tsum muaj zog. _ Muaj tseeb_ 5. Endocytosis yog ib txoj kev uas ib lub cell membrane nyob ib puag ncig thiab siv cov khoom los ntawm ib puag ncig. Ib daim nyias nyias uas tso cai rau qee cov ntaub ntawv dhau los qhia txog kev xaiv permeability
Dab tsi yog lub zog uas tuaj yeem tshwm sim ntawm qhov chaw ua si los ua kom cov khoom pib txav mus los?
Kev sib txhuam. Thaum lub ntiajteb txawj nqus yog ib qho tseem ceeb ntawm physics rau qhov chaw ua si swb, kev sib txhuam yog qhov tseem ceeb sib npaug. Kev sib txhuam ua haujlwm tiv thaiv lub ntiajteb txawj nqus kom qeeb tus neeg qhovntsej thiaj tsis mob ntawm tus swb. Kev sib txhuam yog ib qho quab yuam uas tshwm sim thaum twg ob yam khoom rub tawm rau ib leeg, xws li swb thiab ib tus neeg lub nraub qaum
Cov protein puas tuaj yeem txav mus rau hauv cov cell membrane?
Thaum lub lipid bilayer muab cov qauv rau cov cell membrane, membrane proteins tso cai rau ntau yam kev sib cuam tshuam ntawm cov hlwb. Raws li peb tau tham nyob rau hauv nqe lus dhau los, daim nyias nyias cov proteins dawb txav mus rau hauv lub lipid bilayer vim nws cov dej ntws
Txoj cai thermodynamic twg hais tias koj Tsis tuaj yeem hloov 100 feem pua ntawm cov cua sov rau hauv cov khoom siv hluav taws xob ntawm cov lus teb xaiv?
Txoj Cai thib ob
Cov tshuaj dab tsi tuaj yeem txav mus rau hauv lossis tawm ntawm cov hlwb los ntawm kev nthuav tawm?
Dej, carbon dioxide, thiab oxygen yog ib qho ntawm ob peb yam yooj yim molecules uas muaj peev xwm hla lub cell membrane los ntawm diffusion (los yog ib hom diffusion hu ua osmosis). Diffusion yog ib txoj hauv kev ntawm kev txav ntawm cov khoom nyob rau hauv cov hlwb, nrog rau txoj kev rau cov me me molecules tseem ceeb hla lub cell membrane