Video: Yuav ua li cas cov kab mob tuaj yeem raug mob los ntawm cov ntsev ntau ntawm txoj kev?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Raws li kev soj ntsuam koj tau ua hauv kev ua haujlwm hauv chav kuaj no, piav qhia yuav ua li cas kab mob yuav yog raug mob los ntawm cov ntsev ntau ntau los ntawm txoj kev . Cov kab mob muaj peev xwm ua raug mob vim dej ntsev yuav ua rau poob dej los ntawm cov kab mob los yog cov nroj tsuag ntawm txoj kev; lub cev qhuav dej ua tau puas los yog tua cov hlwb.
Ib yam li ntawd, yuav ua li cas rau cov dej ntawm cov dos liab thaum lawv muab tso rau hauv ntsev tov?
Piav dab tsi tshwm sim rau cov dej ntsiab lus ntawm cov dos liab thaum lawv muab tso rau hauv a ntsev . Cov dej absorbed cov kua ( ntsev ), uas ua cov cell ntsws. Lawv ncuav lub Starch Indicator (Iodine) rau hauv " cell "thiab muab lub khob ntim nrog cov hmoov txhuv nplej siab thiab qabzib daws.
Ib yam li ntawd, koj yuav ua li cas thiaj paub tias cov hmoov txhuv nplej siab tau nthuav tawm thoob plaws hauv daim nyias nyias? o Mus kuaj seb iodine lub hmoov nplej muaj hla cov hluavtaws daim nyias nyias , koj yuav nrhiav kev hloov xim. Ib qho kev daws ntawm iodine yog tan thiab ib qho kev daws ntawm hmoov nplej yog mis nyuj dawb; thaum iodine thiab hmoov nplej nyob ua ke hauv tib txoj kev daws teeb meem, lawv hnov mob thiab cov tshuaj hloov ntshav, tsaus xiav lossis dub.
Ua raws li qhov no hauv kev txiav txim siab, vim li cas qee cov khoom tuaj yeem dhau los ntawm daim nyias nyias?
Cov daim nyias nyias yog selectively permeable vim tshuaj tsis txhob hla nws indiscriminately. Ib txhia molecules, xws li hydrocarbons thiab oxygen tuaj yeem hla mus daim nyias nyias . Ntau cov molecules loj (xws li qabzib thiab lwm yam suab thaj) ua tsis tau. Dej tau hla dhau nruab nrab ntawm lipids.
Cov piam thaj puas tawm ntawm lub cell?
Glucose yog 6-carbon qab zib uas ncaj qha metabolized los ntawm hlwb muab lub zog. A qabzib molecule loj dhau mus dhau a cell membrane ntawm yooj yim nthuav tawm . Hloov chaw, hlwb pab glucose diffusion los ntawm kev yooj yim nthuav tawm thiab ob hom kev thauj mus los.
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