Video: Dab tsi yog cov cim qhia txog kev hloov pauv tshuaj thaum lub mis qaub?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Teb thiab piav qhia:
Cov qaub ntawm mis nyuj yog a tshuaj tiv thaiv . Mis uas yog spoiled qaub , nrog ib tug foul saj thiab tsw. Nws tuaj yeem ua lumpy thiab curdled.
Tib neeg kuj nug, thaum mis nyuj yog tshuaj hloov?
Kua mis nyuj tsis yog ib yam dab tsi uas koj tuaj yeem thim rov qab, thiab cov txheej txheem ntawm nws qaub tsim cov molecules tshiab. Qee qhov piv txwv ntawm tshuaj hloov pauv yuav yog tej yam uas muaj kev kub hnyiab, tsim cov pa tshiab lossis npuas, lossis hloov nyob rau hauv cov xim, zoo li cov tsim ntawm xeb.
Dab tsi yog tsim thaum mis nyuj qaub? Mis muaj cov suab thaj hu ua lactose. Nws kuj muaj cov kab mob tsis muaj mob hu ua lactobacillus, uas siv lactose rau lub zog thiab tsim cov lactic acid ua cov khoom lag luam. Nws yog lactic acid uas ua rau mis nyuj saj qaub.
Ntawm no, hom khoom dab tsi tau pom thaum cov kua mis qaub?
Thaum twg mis nyuj tig qaub , qhov no yog ib qho kev hloov ntawm lub cev vim hais tias ib qho kev hloov ntawm tsw tsis qhia txog kev hloov tshuaj. 20. Thaum citric acid thiab ci dej qab zib sib tov, carbon dioxide yog tsim thiab kub txo. Qhov no yuav tsum yog kev hloov tshuaj.
Yog vim li cas thiaj li soaring ntawm mis nyuj yog ib qho kev hloov tshuaj?
Souring mis nyuj ua rau curdling, a cov tshuaj tiv thaiv lub cev . Tseem, tshuaj nws kev hloov vim nce acidity. Cov proteins ua denatured nyob rau hauv cov txheej txheem thiab acid qib nce hloov tus tshuaj muaj pes tsawg leeg.
Pom zoo:
Dab tsi yog qhov txawv ntawm ib puag ncig kev hloov pauv thiab kev hloov pauv qub txeeg qub teg?
Qhov sib txawv ntawm cov yam ntxwv ntawm cov tib neeg ntawm tib hom yog hu ua variation. Qhov no yog inherited variation. Qee qhov kev hloov pauv yog qhov tshwm sim ntawm qhov sib txawv ntawm ib puag ncig, lossis ib tus neeg ua dab tsi. Qhov no yog hu ua environmental variation
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
Yog vim li cas sodium poov tshuaj twj tso kua mis suav hais tias yog ib qho kev thauj mus los uas cov kev taw qhia yog cov sodium thiab poov tshuaj tau pumped?
Sodium-Potassium Pump. Kev thauj mus los yog lub zog xav tau cov txheej txheem ntawm kev siv cov molecules thiab ions hla daim nyias nyias 'nce toj' - tiv thaiv kev sib tw gradient. Txhawm rau txav cov molecules tawm tsam lawv cov concentration gradient, yuav tsum muaj cov khoom siv protein