Video: Cov dej puas txav los ntawm qhov siab mus rau qis qis?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Osmosis: Hauv osmosis, dej ib txwm txav los ntawm thaj chaw siab dua dej concentration rau ib ntawm qis concentration . Nyob rau hauv daim duab qhia, lub solute tsis tuaj yeem dhau los ntawm kev xaiv permeable membrane, tab sis cov dej ua tau. Dej muaj ib concentration gradient hauv qhov system no.
Yog li ntawd, yog vim li cas dej thiaj li txav los ntawm qhov siab mus rau qis concentration?
Lub diffusion ntawm tej kua, roj molecules los ntawm qis concentration rau siab concentration ntawm cov kuab tshuaj uas yog yooj yim los ntawm lub xub ntiag ntawm lub semi-permeable membrane yog hu ua 'Osmosis'. Dej molecules txav los ntawm qis osmotic siab mus rau qhov siab dua osmotic siab cheeb tsam.
Tsis tas li ntawd, puas muaj kev thauj mus los ntawm qhov siab mus rau qis concentration? Kev thauj mus los . Thaum kev thauj mus los , tshuaj txav tawm tsam cov concentration gradient, los ntawm ib cheeb tsam ntawm qis concentration mus rau ib cheeb tsam ntawm siab concentration . Cov txheej txheem no yog nquag ” vim hais tias nws yuav tsum tau siv lub zog (feem ntau nyob rau hauv daim ntawv ntawm ATP). Nws yog qhov opposite ntawm passive thauj.
Hais txog qhov no, dab tsi txav los ntawm siab mus rau qis concentration?
Diffusion yog ib qho spontaneous txav ntawm hais los ntawm ib cheeb tsam ntawm siab concentration mus rau ib cheeb tsam ntawm qis concentration . Osmosis yog ib qho kev txav txav ntawm cov dej nyob thoob plaws lub semipermeable membrane los ntawm ib cheeb tsam ntawm qis daws concentration mus rau ib tug ntau concentrated tov, nce a concentration gradient.
Dab tsi yog qhov txav ntawm cov khoom los ntawm qhov siab mus rau qis concentration kom txog thaum lawv sib tov sib npaug?
Nco ntsoov: Cov khoom txuas ntxiv mus los ntawm a siab rau a tsawg concentration mus txog rau thaum tag nrho cov cov khoom yog sib npaug thiab randomly faib. Osmosis tsuas yog ib hom tshwj xeeb ntawm diffusion. Nws tshwm sim thaum dej molecules dhau los ntawm ib nrab permeable membrane.
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 qhov kev hloov pauv ntawm cov khoom uas txav ntawm qhov chaw mus rau qhov chaw ntawm - 12 m?
Kev piav qhia: Qhov kev txav ntawm ib qho khoom txav ntawm qhov chaw mus rau qhov chaw ntawm − 12 m yog 12 meters. Qhov kev ncua deb ntawm lub hauv paus chiv keeb mus rau qhov siab tshaj plaws txoj hauj lwm yog hu ua displacement ntawm ib yam khoom. Qhov siab tshaj plaws kev hloov pauv ntawm cov khoom nyob rau hauv ib nthwv dej yog hu ua crest thiab qhov tsawg kawg nkaus hloov pauv yog hu ua trough
Dab tsi nthwv dej zoo li cov cuab yeej ntawm lub teeb ua rau nws hloov kev taw qhia thaum nws txav ntawm ib nrab mus rau lwm qhov?
Refraction
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
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