Qhov sib txawv tseem ceeb ntawm catalase thiab peroxidase yog catalase catalyzes decomposition ntawm hydrogen peroxide rau hauv dej thiab oxygen, whereas peroxidase catalyzes decomposition ntawm peroxides.
Catalase thiab peroxidase yog cov enzymes ntau. Ib qho enzyme yog ib qho khoom siv lom neeg uas yog ib qho tseem ceeb hauv catalyzing tshuaj tiv thaiv los ntawm kev txo qhov ua kom lub zog thaiv ntawm cov tshuaj tiv thaiv. Yog li, ib qho enzyme tuaj yeem txhim kho tus nqi ntawm cov tshuaj tiv thaiv tshwj xeeb.
Catalase yog dab tsi?
Catalase yog ib qho enzyme uas muaj nyob hauv cov kab mob thiab tseem ceeb hauv kev decomposing hydrogen peroxide los ua dej thiab oxygen. Peb tuaj yeem pom cov enzyme no ze li ntawm txhua tus tsiaj nyob uas raug oxygen. E.g. Cov kab mob, cov nroj tsuag, tsiaj txhu, thiab lwm yam. Yog li ntawd, cov enzyme no tseem ceeb heev hauv kev tiv thaiv peb lub cev los ntawm kev puas tsuaj oxidative los ntawm reactive hydrogen hom uas tsim los ntawm hydrogen peroxide.
Thaum xav txog cov qauv tshuaj ntawm catalase, nws yog tetramer. Qhov ntawd txhais tau tias, qhov enzyme molecule no muaj plaub polypeptide chains. Txhua polypeptide saw yog txog 500 amino acids ntev. Muaj ib qho kev sau ntawm plaub pawg heme uas yog ib qho tseem ceeb hauv kev decomposition ntawm hydrogen peroxide. Rau cov enzyme no, qhov zoo tshaj pH theem hauv tib neeg lub cev yog pH 7. Txawm li cas los xij, tus nqi ntawm cov tshuaj tiv thaiv tsis hloov ntau yog tias pH nyob nruab nrab ntawm 6.8 thiab 7.5. Tsis tas li ntawd, qhov ntsuas kub zoo sib txawv raws li hom tsiaj.
Daim duab 01: Cov qauv ntawm Hydrogen Peroxide
Cov kab mob feem ntau siv catalase enzymes hauv txhua lub cev uas lawv muaj. Feem ntau, lub siab muaj cov ntsiab lus siab ntawm catalase, tshwj xeeb tshaj yog nyob rau hauv cov tsiaj. Feem ntau, nws tshwm sim hauv peroxisomes thiab cytosol ntawm erythrocytes. Tsis tas li ntawd, cov enzyme no tau muab rho tawm thiab siv hauv kev lag luam khoom noj rau kev tshem tawm hydrogen peroxide los ntawm cov mis nyuj ua ntej tsim cheese. Ntxiv rau qhov ntawd, nws muaj txiaj ntsig zoo hauv cov ntaub qhwv zaub mov los tiv thaiv cov zaub mov los ntawm oxidizing.
YPeroxidase yog dab tsi?
Peroxidase yog ib qho enzyme uas tseem ceeb hauv kev decomposing peroxide. Nws tseem hu ua peroxide reductase. Ntxiv nrog rau qhov decomposition ntawm peroxides, muaj lwm cov txheej txheem lom neeg uas siv cov enzyme no rau kev ua haujlwm zoo. Piv txwv li, peroxides yog ib qho tseem ceeb hauv kev kho cov dej khib nyiab hauv kev lag luam, hloov cov tshuaj lom mus rau hauv cov khoom tsis zoo, thiab polymerize anilines thiab phenols. Lawv qee zaum siv los ua cov cim histological, ib yam nkaus.
Daim duab 02: Glutathione Peroxidase
Rau feem ntau cov tshuaj tiv thaiv uas cuam tshuam nrog peroxidase enzyme, qhov zoo tshaj plaws substrate yog hydrogen peroxide. Txawm li cas los xij, cov enzyme no ua haujlwm ntau dua li lwm cov substrates xws li cov organic hydroperoxides, piv txwv li. kua peroxides.
Qhov txawv ntawm Catalase thiab Peroxidase yog dab tsi?
Catalase thiab peroxidase yog cov enzymes. Qhov sib txawv tseem ceeb ntawm catalase thiab peroxidase yog catalase catalyzes decomposition ntawm hydrogen peroxide rau hauv dej thiab oxygen, whereas peroxidase catalyzes decomposition ntawm peroxides. Yog li ntawd, catalase yog ib hom peroxidase enzyme. Ntxiv mus, qhov zoo tshaj plaws substrate rau peroxidase yog hydrogen peroxide, uas yog lub substrate rau catalase enzyme.
Cov lus qhia hauv qab no qhia txog qhov sib txawv ntawm catalase thiab peroxidase hauv daim ntawv tabular.
Summary – Catalase vs Peroxidase
Ib qho enzyme yog cov khoom siv roj ntsha uas tuaj yeem txhim kho tus nqi ntawm cov tshuaj tiv thaiv tshuaj los ntawm kev txo cov kev ua kom lub zog thaiv. Catalase thiab peroxidase yog cov enzymes. Qhov sib txawv tseem ceeb ntawm catalase thiab peroxidase yog catalase catalyzes decomposition ntawm hydrogen peroxide rau hauv dej thiab oxygen, whereas peroxidase catalyzes decomposition ntawm peroxides.
