Video: Qhov kub ntawm qhov twg catalase enzyme ua haujlwm ntawm nws qhov zoo tshaj plaws?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Yog lawm, catalase ua haujlwm zoo tshaj plaws ntawm qhov nruab nrab pH thiab kub ntawm 40 ° C, ob qho tib si yog ze rau cov ntaub so ntswg ntawm tus tsiaj.
Ib yam li ntawd, tib neeg nug, qhov kub ntawm qhov enzyme ua haujlwm zoo tshaj?
Muaj qhov kub thiab txias ntawm qhov enzyme lub catalytic kev ua haujlwm ntawm nws qhov loj tshaj (saib daim duab). Qhov ntsuas kub zoo no feem ntau nyob ib puag ncig tib neeg lub cev kub ( 37.5 oC ) rau cov enzymes hauv tib neeg cov hlwb.
Tsis tas li ntawd, qhov kub thiab txias cuam tshuam li cas ntawm cov enzyme catalase ua haujlwm? Cov teebmeem ntawm Kub Raws li cov kub nce mus rau qhov zoo tshaj plaws point, hydrogen bonds loosen, ua kom yooj yim rau catalase ua rau hydrogen peroxide molecules. Yog tias kub nce tshaj qhov optimum point, lub enzyme denatures, thiab nws cov qauv yog cuam tshuam.
Tsis tas li ntawd, qhov ntsuas kub zoo li cas rau catalase enzyme?
Nws yog tetramer ntawm plaub polypeptides chains uas muaj plaub pawg porphyrin heme uas tso cai rau enzyme kom hnov mob nrog hydrogen peroxide. Cov zoo PH ntawm tib neeg catalase yog kwv yees li 7 thiab zoo kub yog ntawm 37 degree.
Dab tsi ua rau cov npuas tsim thaum koj ntxiv cov catalase?
Catalase yog ib qho enzyme nyob rau hauv daim siab uas zom cov teeb meem hydrogen peroxide rau hauv oxygen thiab dej. Thaum cov tshuaj tiv thaiv no tshwm sim, cov pa oxygen npuas khiav thiab tsim ua npuas ncauj. Ua kom tiav txhua qhov chaw uas lub siab nyoos kov thaum lub sijhawm ua haujlwm no.
Pom zoo:
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