Video: Yuav ua li cas hloov sucrose rau piam thaj thiab fructose?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Hauv tib neeg thiab lwm yam tsiaj, qab zib tau tawg mus rau hauv nws cov khoom siv monosaccharides, qabzib thiab fructose , los ntawm sucrase lossis isomaltase glycoside hydrolases, uas nyob hauv daim nyias nyias ntawm microvilli hauv ob sab phlu duodenum. Hauv cov kab mob thiab qee tus tsiaj, qab zib yog digested los ntawm enzyme invertase.
Ua qhov no hauv kev txiav txim siab, dab tsi cuam tshuam sucrose rau piam thaj thiab fructose?
Sucrase rhuav tshem sucrose (los yog "table qab zib ”) nyob rau hauv piam thaj thiab fructose , thiab lactase tawg lactose (los yog "mis qab zib ") Hauv qabzib thiab galactose.
Tsis tas li ntawd, qhov sib xyaw ntawm qabzib thiab fructose yog dab tsi? Sucrose: Cov rooj sib tham qab zib . Nws yog 50-50 Kev sib xyaw ntawm cov piam thaj thiab fructose . Sucrose sai sai zom hauv cov hnyuv mus rau hauv piam thaj thiab fructose , uas lub taub hau mus rau daim siab ntawm cov hlab ntsha portal uas lawv tau txais cov txheej txheem lom neeg sib txawv.
Ua kom pom qhov no, uas cov enzyme pab hloov sucrose rau hauv qabzib thiab fructose?
sucrase
Glucose thiab fructose ua dab tsi?
Fructose hmoov , los yog txiv hmab txiv ntoo qab zib, yog ib qho yooj yim ketonic monosaccharide pom nyob hauv ntau cov nroj tsuag, qhov uas nws feem ntau sib raug zoo qabzib rau daim ntawv sucrose ntawm disaccharide. Nws yog ib qho ntawm peb qhov kev noj haus monosaccharides, nrog rau qabzib thiab galactose, uas yog absorbed ncaj qha rau hauv cov ntshav thaum digestion.
Pom zoo:
Cov enzymes twg pab hloov pauv sucrose rau hauv piam thaj thiab fructose?
Cov enzyme hauv tib neeg uas hloov sucrose rau piam thaj thiab fructose tau hu ua sucrase, tab sis invertase tau siv vim tias nws pheej yig dua thiab yooj yim dua rau kev yuav
Koj yuav ua li cas txhawm rau kev sib raug zoo ntawm cov piam thaj thiab fructose?
Teb thiab piav qhia: Hydrolysis yog siv los rhuav tshem cov piam thaj thiab fructose hauv cov molecule sucrose. Hydrolysis suav nrog ntxiv dej rau kev sib txuas ntawm cov no
Cov piam thaj thiab fructose tsim sucrose li cas?
Monosaccharides xws li cov piam thaj tuaj yeem txuas ua ke hauv kev sib xyaw ua ke. Piv txwv li, sucrose (tej suab thaj) yog tsim los ntawm ib qho molecule ntawm qabzib thiab ib qho ntawm fructose, raws li qhia hauv qab no. Molecules muaj ob lub monosaccharides hu ua disaccharides. Ib daim ntawv cog lus glycosidic tshuav ntawm ob lub monosaccharides
Yuav ua li cas sucrose ua los ntawm piam thaj thiab fructose?
Disaccharides: Sucrose tau tsim thaum lub monomer ntawm cov piam thaj thiab monomer ntawm fructose tau koom nrog hauv cov tshuaj tiv thaiv lub cev qhuav dej los tsim cov glycosidic bond. Hauv cov txheej txheem, ib qho dej molecule ploj lawm. Hauv sucrose, kev sib txuas glycosidic yog tsim los ntawm carbon 1 hauv qabzib thiab carbon 2 hauv fructose
Yuav ua li cas rau sucrose thaum nws khi rau sucrose?
Sucrose khi rau qhov chaw ua haujlwm ntawm sucrase, thiab qhov no ua rau muaj kev ntxhov siab ntawm kev sib koom ntawm 2 suab thaj uas ua rau sucrose. Cov ntawv cog lus tawg, tso cov piam thaj thiab fructose