Video: Dab tsi yog keratin hauv biology?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Keratin , fibrous structural protein ntawm cov plaub hau, rau tes, horn, hoofs, ntaub plaub, plaub, thiab ntawm lub epithelial hlwb nyob rau hauv lub txheej txheej ntawm daim tawv nqaij. Keratin ua haujlwm tseem ceeb hauv cov txheej txheem thiab kev tiv thaiv, tshwj xeeb tshaj yog nyob rau hauv lub epithelium.
Ib yam li ib tug yuav nug, keratin yog dab tsi thiab nws txoj haujlwm yog dab tsi?
Keratin yog ib qho tseem ceeb protein nyob rau hauv lub epidermis. Keratin muaj ob lub ntsiab kev ua haujlwm : txhawm rau sib koom tes sib koom tes thiab tsim txheej tiv thaiv sab nrauv ntawm daim tawv nqaij. Hauv cov kab mob epithelial, keratin Cov proteins hauv lub cell txuas rau cov proteins hu ua desmosomes ntawm qhov chaw.
Kuj Paub, keratin yog dab tsi hauv tib neeg lub cev? Keratins yog ib pawg ntawm cov tawv nqaij, fibrous proteins uas tsim cov qauv txheej txheem ntawm epithelial hlwb, uas yog cov hlwb uas kab ntawm qhov chaw thiab kab noj hniav. ntawm lub cev . Epithelial hlwb tsim cov ntaub so ntswg xws li cov plaub hau, tawv nqaij, thiab rau tes. Cov hlwb no tseem ua kab hauv nruab nrog cev thiab yog ib feem tseem ceeb ntawm ntau cov qog.
Kuj nug, dab tsi yog ua los ntawm keratin?
Nws yog cov khoom siv tseem ceeb ua rau cov plaub hau, rau tes, plaub, horns, claws, hooves, calluses, thiab txheej txheej ntawm daim tawv nqaij ntawm vertebrates. Keratin tseem tiv thaiv cov hlwb epithelial los ntawm kev puas tsuaj lossis kev ntxhov siab.
Qhov twg keratin pom nyob rau hauv lub cev?
Ib hom protein pom ntawm cov hlwb epithelial, uas kab sab hauv thiab sab nrauv ntawm lub lub cev . Keratins pab tsim cov ntaub so ntswg ntawm cov plaub hau, rau tes, thiab txheej txheej ntawm daim tawv nqaij. Lawv kuj yog pom nyob rau hauv cov ntaub so ntswg ntawm lub nruab nrog cev, qog, thiab lwm yam lub cev.
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