Cov txheej txheem:
Video: Dab tsi yog peb qhov kev soj ntsuam uas yuav qhia tau tias muaj tshuaj lom neeg tshwm sim?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Hauv qab no tuaj yeem qhia tias a tshuaj hloov tau tshwm sim , txawm hais tias qhov pov thawj no tsis yog qhov tseeb: Hloov cov ntxhiab tsw. Hloov cov xim (piv txwv li, nyiaj rau reddish-xim av thaum hlau xeb). Hloov hauv qhov kub lossis lub zog, xws li kev tsim khoom (exothermic) lossis poob (endothermic) ntawm tshav kub.
Ua raws li qhov no hauv kev xav, dab tsi yog 3 lub cim qhia tias muaj kev hloov tshuaj lom neeg?
Yog; cov khoom tshiab tsim, raws li pov thawj los ntawm cov xim hloov thiab npuas. Qee cov cim qhia txog kev hloov tshuaj lom neeg yog kev hloov hauv xim thiab tsim cov npuas. Tsib yam xwm txheej ntawm kev hloov tshuaj lom neeg: xim chage, tsim ntawm precipitate, tsim ntawm ib tug gas, tsw hloov, kub hloov.
Tsis tas li ntawd, ob txoj hauv kev uas koj paub tias muaj tshuaj lom neeg muaj tshwm sim? Paub txog tshuaj lom neeg
- Kev hloov xim tshwm sim thaum lub sijhawm cov tshuaj tiv thaiv.
- Cov roj yog tsim thaum lub sij hawm cov tshuaj tiv thaiv.
- Ib yam khoom uas hu ua precipitate yog tsim nyob rau hauv cov tshuaj tiv thaiv.
- Ib qho kev hloov ntawm lub zog tshwm sim los ntawm cov tshuaj tiv thaiv.
Tom qab ntawd, lo lus nug yog, kev soj ntsuam dab tsi tuaj yeem ua tau uas qhia tau tias muaj tshuaj lom neeg tshwm sim?
Xya yam uas qhia tias muaj kev hloov tshuaj lom neeg tshwm sim
- Gas npuas tshwm. Gas npuas tshwm tom qab muaj tshuaj lom neeg cov tshuaj tiv thaiv tau tshwm sim thiab cov sib tov ua saturated nrog roj.
- Tsim ib tug Precipitate.
- Xim hloov.
- Kub Hloov.
- Kev tsim lub teeb.
- Hloov ntim.
- Hloov hauv tsw lossis saj.
Dab tsi yog 6 cov cim qhia ntawm cov tshuaj tiv thaiv tshuaj?
Cov cim thiab cov pov thawj
- tsw.
- Lub zog hloov.
- Gas npuas.
- Precipitate tsim.
- Xim hloov.
Pom zoo:
Dab tsi yog tsib yam pov thawj uas koj tuaj yeem siv los txiav txim seb puas muaj tshuaj lom neeg tshwm sim?
Qee cov cim qhia txog kev hloov tshuaj lom neeg yog kev hloov xim thiab tsim cov npuas. Lub tsib yam kev hloov ntawm tshuaj lom neeg: xim chage, tsim ntawm precipitate, tsim cov roj, tsw hloov, kub hloov
Tam sim ntawd yuav siv dab tsi yog tias koj cov khaub ncaws raug hluav taws lossis yog tias muaj tshuaj lom loj tshwm sim ntawm koj cov khaub ncaws?
Tam sim ntawd yuav siv dab tsi yog tias koj cov khaub ncaws raug hluav taws lossis yog tias muaj tshuaj lom ntau tshwm sim ntawm koj cov khaub ncaws? Koj mus ncaj qha rau da dej kev nyab xeeb thiab sawb ntawm tag nrho koj cov khaub ncaws
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
Yuav ua li cas yog qhov tshwm sim uas ib tug poj niam dig muag xim uas yuav ib tug txiv neej uas tsis pom kev zoo yuav muaj xim dig muag me nyuam?
Yog tias tus poj niam uas muaj lub zeem muag zoo li no (heterozygous rau qhov muag tsis pom xim) yuav ib tug txiv neej ib txwm muaj (XY), cov xeeb ceem hauv qab no tuaj yeem xav tau hauv F2 tiam: ntawm cov ntxhais, 50% yog ib txwm muaj thiab 50% yog cov neeg nqa khoom rau cov kab mob; ntawm cov tub, 50% yog xim dig muag thiab 50% yog qhov pom kev zoo
Cov kev soj ntsuam soj ntsuam dab tsi qhia tias muaj kev hloov tshuaj lom neeg tshwm sim?
Kev soj ntsuam uas qhia tias muaj kev hloov pauv tshuaj muaj xws li kev hloov xim, hloov pauv kub, lub teeb muab tawm, tsim ua npuas, tsim cov nag lossis daus, thiab lwm yam