Qhov Tseem Ceeb - Enzyme vs Coenzyme
Cov tshuaj tiv thaiv tshuaj hloov ib lossis ntau lub substrates rau hauv cov khoom. Cov tshuaj tiv thaiv no yog catalyzed los ntawm cov protein tshwj xeeb hu ua enzymes. Enzymes ua raws li lub zog rau feem ntau cov tshuaj tiv thaiv yam tsis tau noj. Enzymes yog tsim los ntawm cov amino acids thiab muaj cov cim amino acid sequences muaj li ntawm 20 txawv amino acids. Enzymes tau txais kev txhawb nqa los ntawm me me uas tsis yog-protein organic molecules hu ua cofactors. Coenzymes yog ib hom cofactors uas pab enzymes ua catalysis. Qhov sib txawv tseem ceeb ntawm enzyme thiab coenzyme yog cov enzymes yog cov protein uas catalyzes biochemical cov tshuaj tiv thaiv thaum coenzyme yog cov tsis muaj protein ntau cov organic molecule uas pab enzymes kom qhib thiab catalyze cov tshuaj tiv thaiv. Enzymes yog macromolecules thaum coenzymes yog me me molecules.
Enzyme yog dab tsi?
Enzymes yog cov khoom siv roj ntsha ntawm cov hlwb nyob. Lawv yog cov proteins uas muaj ntau pua rau lab tus amino acids txuas ua ke zoo li pearls ntawm ib txoj hlua. Txhua lub enzyme muaj qhov tshwj xeeb amino acid ib ntus, thiab nws txiav txim siab los ntawm cov noob tshwj xeeb. Enzymes nrawm yuav luag tag nrho cov tshuaj biochemical hauv cov kab mob nyob. Enzymes tsuas cuam tshuam tus nqi ntawm cov tshuaj tiv thaiv, thiab lawv lub xub ntiag yog qhov tseem ceeb los pib cov tshuaj hloov pauv vim tias lub zog ua kom cov tshuaj tiv thaiv qis dua los ntawm cov enzymes. Enzymes hloov tus nqi ntawm cov tshuaj tiv thaiv yam tsis tau noj lossis tsis hloov cov qauv tshuaj. Tib lub enzyme tuaj yeem ua rau kev hloov pauv ntawm ntau thiab ntau cov substrates rau hauv cov khoom los ntawm kev qhia lub peev xwm los catalyze tib cov tshuaj tiv thaiv ntau dua.
Enzymes yog qhov tshwj xeeb heev. Ib qho enzyme khi nrog ib qho tshwj xeeb substrate thiab catalyzes cov tshuaj tiv thaiv tshwj xeeb. Qhov tshwj xeeb ntawm cov enzyme yog tshwm sim los ntawm cov duab ntawm cov enzymes. Txhua lub enzyme muaj qhov chaw ua haujlwm nrog cov duab tshwj xeeb thiab pab pawg ua haujlwm rau kev khi tshwj xeeb. Tsuas yog cov substrate tshwj xeeb yuav phim cov duab ntawm qhov chaw nquag thiab khi nrog nws. Qhov tshwj xeeb ntawm cov enzyme substrate binding tuaj yeem piav qhia los ntawm ob lub tswv yim hu ua xauv thiab qhov tseem ceeb hypothesis thiab induced haum hypothesis. Xauv thiab qhov tseem ceeb hypothesis qhia qhov sib tw ntawm enzyme thiab substrate yog qhov tshwj xeeb zoo ib yam li lub xauv thiab tus yuam sij. Induced fit hypothesis qhia tias cov duab ntawm qhov chaw nquag tuaj yeem hloov pauv kom haum rau cov duab ntawm cov substrate tshwj xeeb zoo ib yam li hnab looj tes haum rau ib txhais tes.
Cov tshuaj tiv thaiv Enzymatic cuam tshuam los ntawm ntau yam xws li pH, qhov kub thiab txias, thiab lwm yam. Txhua lub enzyme muaj qhov ntsuas kub zoo tshaj plaws thiab pH tus nqi kom ua haujlwm tau zoo. Enzymes kuj cuam tshuam nrog cov uas tsis yog-protein cofactors xws li prosthetic pawg, coenzymes, activators, thiab lwm yam. Enzymes tuaj yeem raug rhuav tshem ntawm qhov kub thiab txias los ntawm acidity lossis alkalinity vim lawv yog cov proteins.
Daim duab 01: Induced haum qauv ntawm kev ua enzyme.
Coenzyme yog dab tsi?
Tshuaj tiv thaiv yog pab los ntawm cov tsis muaj protein ntau hu ua cofactors. Cofactors pab enzymes rau catalyze tshuaj tiv thaiv. Muaj ntau hom cofactors thiab coenzymes yog ib hom ntawm lawv. Coenzyme yog ib qho organic molecule uas ua ke nrog cov enzyme substrate complex thiab pab cov txheej txheem catalysis ntawm cov tshuaj tiv thaiv. Lawv kuj hu ua pab molecules. Lawv yog tsim los ntawm cov vitamins los yog muab los ntawm cov vitamins. Yog li ntawd, cov zaub mov yuav tsum muaj cov vitamins uas muab cov coenzymes tseem ceeb rau cov tshuaj biochemical.
Coenzymes tuaj yeem khi nrog qhov chaw nquag ntawm cov enzyme. Lawv khi xoob nrog cov enzyme thiab pab cov tshuaj tiv thaiv tshuaj los ntawm kev muab cov pab pawg ua haujlwm uas xav tau rau cov tshuaj tiv thaiv lossis los ntawm kev hloov cov qauv ntawm cov enzymes. Yog li ntawd, kev khi ntawm lub substrate ua tau yooj yim, thiab cov tshuaj tiv thaiv tsav ntawm cov khoom. Qee cov coenzymes ua raws li cov txheej txheem thib ob thiab dhau los ua cov tshuaj hloov pauv thaum kawg ntawm cov tshuaj tiv thaiv, tsis zoo li enzymes.
Coenzymes tsis tuaj yeem ua rau cov tshuaj tiv thaiv tshuaj tsis muaj enzyme. Lawv pab enzymes ua kom nquag plias thiab ua tiav lawv txoj haujlwm. Thaum cov coenzyme khi nrog apoenzyme, cov enzyme dhau los ua ib qho enzyme hu ua holoenzyme thiab pib cov tshuaj tiv thaiv.
Piv txwv ntawm coenzymes yog Adenosine triphosphate (ATP), Nicotinamide adenine dinucleotide (NAD), Flavin adenine dinucleotide (FAD), Coenzyme A, vitamins B1, B2, thiab B6, thiab lwm yam.
Daim duab 02: Cofactor khi nrog apoenzyme
Qhov txawv ntawm Enzyme thiab Coenzyme yog dab tsi?
YEnzyme vs Coenzyme |
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| Enzymes yog cov tshuaj lom neeg lom neeg uas ua rau muaj tshuaj lom neeg. | Coenzymes yog cov organic molecules uas pab cov enzymes los ua kom cov tshuaj tiv thaiv tshuaj. |
| hom Molecular | |
| Txhua cov enzymes yog cov proteins. | Coenzymes tsis yog cov protein. |
| Kev hloov pauv vim kev tshwm sim | |
| Enzymes tsis hloov pauv vim muaj tshuaj lom neeg. | Coenzymes hloov pauv hloov pauv raws li qhov tshwm sim ntawm cov tshuaj tiv thaiv. |
| Specificity | |
| YEnzymes tshwj xeeb. | Coenzymes tsis yog tshwj xeeb. |
| Enzymes yog cov molecules loj dua. | Coenzymes yog cov molecules me. |
| Examples | |
| Amylase, proteinase, thiab kinase yog cov piv txwv ntawm enzymes. | NAD, ATP, coenzyme A, thiab FAD yog cov piv txwv ntawm coenzymes. |
Summary – Enzyme vs Coenzyme
Enzymes catalyze tshuaj tiv thaiv. Coenzymes pab enzymes catalyze cov tshuaj tiv thaiv los ntawm activating enzymes thiab muab cov pab pawg neeg ua haujlwm. Enzymes yog cov proteins uas muaj cov amino acids. Coenzymes tsis yog proteins. Lawv feem ntau yog muab los ntawm cov vitamins. Qhov no yog qhov sib txawv ntawm cov enzymes thiab coenzymes.
