Video: Yuav ua li cas lactase zom cov lactose biology?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Thaum lub enzyme lactase khi rau disaccharide cov lactose , nws cov chaw ua haujlwm raug tshem tawm cov lactose Nyob rau hauv nws ob qho tib si suab thaj: qabzib thiab galactose. Glucose thiab galactose yog tom qab ntawd pub dawb kom nqus tau los ntawm cov hnyuv epithelial hauv plab thiab thauj mus rau hauv cov hlab ntshav.
Hauv qhov no, yuav ua li cas lactase zom cov lactose?
Feem ntau thaum ib tug neeg noj tej yam uas muaj cov lactose , ib qho enzyme nyob rau hauv txoj hnyuv me hu ua lactase tawg nws nqis rau hauv cov piam thaj yooj yim hu ua qabzib thiab galactose. Cov suab thaj yooj yim no ces yooj yim nqus mus rau hauv cov hlab ntsha thiab hloov mus rau hauv lub zog - roj rau peb lub cev.
Ib sab saum toj, lub luag haujlwm ntawm lactase yog dab tsi? Qhov enzyme no pab zom cov lactose, suab thaj pom hauv mis thiab lwm yam khoom siv mis. Lactase yog tsim los ntawm cov hlwb uas kab phab ntsa ntawm cov hnyuv. Lactase ua haujlwm ntawm tus txhuam hniav txhawm rau zom cov lactose rau hauv cov suab thaj me dua hu ua qabzib thiab galactose rau kev nqus.
Hais txog qhov no, dab tsi yog cov tshuaj tiv thaiv ntawm lactose thiab lactase?
Cov enzyme koj yuav kawm hauv qhov kev sim no yog lactase, thiab cov tshuaj tiv thaiv nws catalyzes yog hydrolysis ntawm disaccharide lactose rau hauv monosaccharides galactose thiab qabzib . Tib neeg xav tau cov enzyme no rau zom cov lactose pom hauv mis thiab lwm yam khoom siv mis nyuj.
Lactase puas tuaj yeem rhuav tshem sucrose?
Lwm yam disaccharides, xws li qab zib thiab lactose tawg los ntawm sucrase thiab lactase , feem. Sucrase rhuav tshem sucrose (lossis "rooj qab zib") rau hauv qabzib thiab fructose, thiab lactase tawg lactose (los yog "mis qab zib") rau hauv qabzib thiab galactose.
Pom zoo:
Cov tshuaj twg pab nrog cov lus nug zom zom cov protein?
Kua txiv ua hauv plab ua los ntawm pepsin thiab hydrochloric acid. ib feem ntawm cov kua txiv hauv plab uas pab tsim ib puag ncig uas pepsin xav tau txhawm rau zom cov protein hauv plab
Dab tsi yog cov kua ib nrab sib xyaw ntawm cov zaub mov zom zom hauv lub plab hu ua?
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Cov enzymes zom zom cov casein li cas?
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Puas yog cov zom zaub mov zom cov piam thaj?
Txoj hnyuv me, txiav txiav, thiab daim siab Los ntawm qhov ntawd, phab ntsa ntawm txoj hnyuv me pib ua lactase, sucrase, thiab maltase. Cov enzymes no zom cov suab thaj ntau ntxiv mus rau hauv monosaccharides lossis ib yam suab thaj. Thaum lawv tau nqus, lawv tau ua tiav ntau dua los ntawm daim siab thiab khaws cia ua glycogen
Yuav ua li cas tshwm sim rau lactose hauv cov tib neeg tsis muaj lactose?
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