MaEnzmesi: Zvinokonzera Kushanduka Kwehupenyu
MaEnzayimu mamorekuru emapuroteni akaomarara anoshanda semacatalysts mumaitiro akasiyana-siyana emakemikari anoitika mukati mezvinhu zvipenyu. Semacatalysts, maEnzayimu anokurumidza kumhanya kwemaitiro asingashandiswi mukuita uku, zvichigonesa zvipenyu kuita maitiro akasiyana-siyana anodiwa kuti zvirarame zviri nani. Muchinyorwa chino, tichaongorora hunhu, mabasa, uye kukosha kwemaEnzayimu muzvikamu zvakasiyana-siyana zvehupenyu hwezvinhu zvipenyu, pamwe nekushandiswa kwawo muindasitiri nekutsvagisa.
Maumbirwo uye Hunhu hweMaEnzymes
MaEnzayimu mapuroteni anoumbwa nemaketani marefu emaamino acids akapetwa kuita chimiro chetatu-dimensional. Chimiro ichi chinobvumira maenzayimu kuti ave nenzvimbo inoshanda, nzvimbo yakasarudzika inosangana nechikamu chepasi - molekyuru iyo enzyme ichashandura. Nzvimbo iyi inoshanda ine chimiro chakakodzera uye hunhu hwemakemikari hwekubatanidza chikamu chepasi, sekunge chipanera chinokwana bhoti rakati.
Hunhu hwakakosha hwema enzyme hunosanganisira kunyatsotsanangurwa kwezvimwe zvinhu, kushanda nesimba mukuwedzera kwehuwandu hwekuita, uye kugona kushanda mumamiriro ezvinhu akajairwa, akadai sekupisa kwemuviri uye pH isina kusimba. Hunhu uhwu hwakasiyana hunoita kuti ma enzymes akwezve zvakanyanya pakutsvagisa uye pakushandisa mashandisirwo azvo.
Basa uye Maitiro Ekuita KweEnzyme
Basa guru rema enzymes mumasero nderekuderedza simba rekuita kuti makemikari ashande, simba shoma rinodiwa kuti reaction iitike. Nekuderedza simba rekuita kuti enzymes ishande, ma enzymes anobvumira kuti mafambiro aitike nekukurumidza uye nesimba shoma pane kana asipo. Ma enzymes anoshanda kuburikidza nechinhu chinozivikanwa se "lock-and-key model" kana "induced fit," iyo inotsanangura kuti ma enzymes nema substrates anoshanda sei.
Mumuenzaniso wekiyi nekiyi, nzvimbo inoshanda yeenzyme ine chimiro chakasiyana chinongokwana substrate chaiyo, sezvinoita kiyi inongokwana lock chaiyo. Mumuenzaniso wekiyi inokwana, kana substrate yakabatana nenzvimbo inoshanda, chimiro cheenzyme chinochinja zvishoma kuti chikwane substrate zviri nani. Kuchinja uku kwechimiro kunogona kubatsira kuisa substrate nenzira inoita kuti reaction ive nyore.
Basa reMaEnzymes muMetabolism
Metabolism imhando yemakemikari anoshandiswa mumuviri anodiwa kuti urarame. Ma enzyme anoita basa guru mu metabolism, mune anabolic reactions, ayo anovaka mamorekuru makuru, akaomarara kubva kumadiki, uye mu catabolic reactions, ayo anoputsa mamorekuru makuru kuita madiki kuti agadzire simba.
Semuenzaniso, enzyme inonzi amylase iri mumate inobatsira kuputsa makabhohaidhiretsi kuita shuga dziri nyore, zvichitanga kugaya. Mumasero, maenzyme akadai sehexokinase anorerutsa danho rekutanga munzira yeglycolysis, uko glucose inoshandurwa kuita glucose-6-phosphate, danho rakakosha mukugadzirwa kwesimba remasero.
Kudzora Basa reEnzyme
Kushanda kwema enzyme mumasero hakusi kwekugara kwenguva refu uye kunogona kudzorwa nenzira dzakasiyana-siyana kuti ive nechokwadi chekuti metabolism inosangana nezvinodiwa nesero. Kudzora uku kunogona kuitika kuburikidza ne enzyme inhibitors, mamorekuru anoderedza kana kumisa kushanda kwema enzyme. Zvinodzivisa zvinogona kukwikwidzana, zvichikwikwidzana ne substrate kuti zvibatanidzwe panzvimbo inoshanda, kana kuti zvisingakwikwidzane, zvichibatana nezvimwe zvikamu zve enzyme kuti ichinje chimiro chayo kana mashandiro ayo.
Pamusoro pezvo, ma enzyme anogonawo kuvhurwa kana kudzima nekuchinja kwemakemikari akadai se phosphorylation kana de-phosphorylation, pamwe nekushandisa allosteric regulation, uko mamorekuru anotonga anobatana kune dzimwe nzvimbo dzisiri nzvimbo inoshanda kuti achinje mashandiro ema enzyme.
MaEnzymes muMashandisirwo Emaindasitiri
Maenzyme haangokoshi chete mumamiriro ezvinhu ehupenyu asiwo ane mashandisirwo akawanda muindasitiri netekinoroji. Muindasitiri yechikafu, maenzyme anoshandiswa kukurumidzisa kuviriswa, kugadzirisa chizi, uye kuvandudza magadzirirwo uye mhando yezvigadzirwa zvebhekari. Semuenzaniso, maenzyme eprotease anoshandiswa kunyorovesa nyama uye kugadzira mapuroteni hydrolysates.
Mu biotechnology, ma enzymes anoita basa guru mu recombinant DNA techniques, uko restriction enzymes dzinoshandiswa kucheka DNA panzvimbo dzakatarwa, uye ligases kuti dzibatanidze zvidimbu zveDNA pamwe chete. Ma enzymes anoshandiswawo mukugadzirwa kwe biofuel, uko ma enzymes akadai se cellulase anopwanya cellulose kubva mumiti kuita shuga inogona kuviriswa kuita ethanol.
Tsvagiridzo uye Remangwana reMaEnzymes
Ma enzymes achiri kungori chinhu chinonakidza chekutsvagisa kwesainzi nekuda kwekushandiswa kwawo munzvimbo dzakasiyana-siyana. Kugadzirwa kwema enzymes akagadzirwa kuburikidza nehunyanzvi hwakadai sekushanduka-shanduka kwakagadzira nzira yekugadzira ma enzymes ane hunhu hwakavandudzwa uye kugadzikana kwekushandiswa kwacho.
Uyezve, tsvakiridzo pamusoro pema enzymes muhutano hwevanhu iri kuwedzera. Semuenzaniso, kunzwisisa ma enzymes anobatanidzwa muzvirwere zve metabolic kana kenza kunovhura mikana yekugadzira mishonga inobva kuma enzymes inogona kunanga nzira dzakati dze biochemical mumuviri.
Mhedziso
Maenzyme zvinhu zvakakosha muhupenyu, zvinodzora zvinenge zvese zvinoitika mumuviri. Basa rawo sezvinhu zvinokonzeresa zvipenyu rinoabvumira kukurumidzisa zvinoitika mumuviri nekushanda nesimba uye zvakananga. Kunzwisisa kwakadzama kwemaenzyme hakungopi ruzivo nezvemaitiro ekutanga ehupenyu chete asiwo kunovhura mashandisirwo anokosha emaindasitiri nehutano. Mune ramangwana, tsvakiridzo yemaenzyme inovimbisa kuwanikwa kutsva kunogona kushandura mashandisiro atinoita biochemistry kuvandudza mhando yehupenyu hwevanhu.
