2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Proteins yog tsim los ntawm cov amino acids. Tag nrho cov amino acids muaj cov qauv zoo sib xws, tab sis txawv ntawm lawv cov saw hlau. Cov saw hlau no muaj cov khoom sib txawv, qee qhov yog hydrophobic (tsis yog dej soluble) thaum lwm tus yog hydrophylic (dej soluble). … Txoj kev no ua kom ruaj khov, dej soluble protein yog tsim.
Vim li cas cov protein tsis soluble hauv dej?
Kev piav qhia: Fibrous proteins tsis yaj hauv dej vim qhov sib txawv ntawm polarity. Raws li kev cai lij choj tshuaj, "zoo li dissolves nyiam". Txij li thaum dej yog polar, thiab saum npoo ntawm fibrous proteins yog them nyob rau hauv non-polar amino acids, nws tsis yaj mus rau hauv aqueous tov.
Yuav ua li cas protein yog soluble hauv dej piv txwv?
Hloov pauv, globular proteins yog soluble hauv dej. Piv txwv li, albuminsyog cov dej-soluble proteins uas muab cov piv txwv paub txog qhov tshwm sim thaum cov protein poob nws cov qauv theem nrab thiab qib theem, txheej txheem hu ua denaturation.
YPuas yog cov proteins soluble hauv dej ntshiab?
Tshwj xeeb, tsis ntev los no peb tau pom tias tag nrho cov proteins uas tsis tau soluble hauv peb chav kuaj, uas muaj ntau yam sib txawv, tuaj yeem solubilized hauv dej ntshiab.
Puas yog cov proteins hydrophobic lossis hydrophilic?
Proteins, ua los ntawm cov amino acids, yog siv rau ntau lub hom phiaj sib txawv hauv cell. Lub cell yog ib qho aqueous (dej-filled) ib puag ncig. Qee cov amino acids muaj polar (hydrophilic) sab chains thaumLwm tus muaj tsis-polar (hydrophobic) sab chains.
Pom zoo:
Puas yog cov dej khov ntev ntev dua li cov dej khov nab kuab?
Lwm qhov sib txawv loj ntawm glacials thiab interglacials yog cov kev hloov hauv dej hiav txwv. Thaum lub sij hawm glacial, cov dej hiav txwv poob qhov nruab nrab ntawm 100m raws li cov dej evaporated thiab khaws cia rau hauv cov glaciers loj hlob thiab cov ntawv dej khov.
Puas yog cov dej tshiab thiab cov dej khib nyiab sib tshooj?
Thaum lub cov dej tshiab thiab cov dej khib nyiab sib cais tag nrho thiab tsis txhob sib tshooj, cov kav dej yog qhov uas ob lub tshuab cuam tshuam. Yuav tsum tau dej tshiab thiab dej khib nyiab sib tshooj? Teb Tsis yog, nws tuaj yeem ua rau muaj kuab paug.
Puas yog cov dej khib nyiab rov ua dua rau hauv cov dej haus?
Cov txheej txheem ntawm kev siv cov dej khib nyiab kho rau cov dej haus yog hu ua cov dej rov siv dua. Kev siv dej rov qab siv tau yog lwm txoj hauv kev los nthuav dav thaj av cov peev txheej dej. Puas dej khib nyiab dhau los ua dej haus?
Puas yog cov kua dej nres lub hwj chim tswj cov kua dej?
Cov kua nplaum thiab lub hwj chim tswj cov kua dej yogob lub kua siv hauv lub tshuab hydraulic hauv cov tsheb niaj hnub, tab sis qhov zoo sib xws tsis mus deb tshaj qhov ntawd. Nres thiab lub hwj chim tswj cov kua dej tau tsim thiab ua kom zoo nyob rau ntau xyoo los ua haujlwm sib txawv hauv cov tsheb, thiab lawv tsis hloov pauv.
Puas yog cov roj cholesterol ua kom cov kua dej ua kua dej?
Thaum qhov kub thiab txias, cov roj cholesterol ua rau cov kua dej ua kom cov kua dej ntau dualos ntawm kev tiv thaiv cov lipids los ntawm kev ntim khoom sib ze. Thaum qhov kub thiab txias, cov roj (cholesterol) yuav txo qis hauv daim nyias nyias.
