2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Tam sim no, enzymes TSIS ua rau cov tshuaj tiv thaiv tsis yog tus kheej. Txawm li cas los xij, enzymes ua kom nrawm nrawm ntawm cov tshuaj tiv thaiv tus kheej. Yeej, lawv ua kom cov tshuaj tiv thaiv sai dua. Enzymes ua qhov no los ntawm kev txo qis kev ua kom lub zog ntawm cov tshuaj tiv thaiv.
Puas cov tshuaj tiv thaiv tus kheej xav tau enzymes?
Nws yog ib qho tseem ceeb kom nco ntsoov tias enzymes tsis hloov txawm tias qhov tshuaj tiv thaiv yogexergonic (spontaneous) lossis endergonic. Qhov no yog vim lawv tsis hloov lub zog dawb ntawm cov reactants lossis cov khoom. Lawv tsuas yog txo qhov ua kom lub zog xav tau rau cov tshuaj tiv thaiv mus tom ntej (Daim duab 1).
Puas cov enzymes tso cai rau cov tshuaj tsis tshwm sim tshwm sim?
Enzymes (thiab lwm yam catalysts) tsuas yog tuaj yeem ua rau txoj hauv kev mus rau qhov sib npaug ntawm qhov ntsuas kub. Lawv tsis hloov cov net thermodynamics. Yog li ntawd, lawv tsis tuaj yeem ua qhov cuam tshuam rov qab los ntawm qhov sib npaug ntawm cov thermodynamic. Enzymes tsis catalyze spontaneous reactions.
Yuav ua li cas thiaj tsis tshwm sim tshwm sim?
Kev tsis txaus siab yog cov tshuaj tiv thaiv uas tsis pom zoo tsim cov khoom ntawm cov txheej txheem muab. Txhawm rau kom cov tshuaj tiv thaiv tsis ua raws li kev xav, nws yuav tsum yog endothermic, nrog rau kev txo qis hauv entropy, lossis ob qho tib si. … Hmoov zoo, qhov tshuaj tiv thaiv no tsis ua raws li qhov kub thiab txias.
Yuav ua li cas yog qhov kev tawm tsam tsis yog tshwm sim?
Tsuas yog vim qhov tshwm sim tsis tshwm sim tsis txhais tau tias tsis uatshwm sim txhua. Xwb, nws txhais tau hais tias cov reactants yuav tau txais kev pom zoo tshaj cov khoom ntawm qhov sib npaug, txawm tias qee cov khoom yuav muaj tseeb.
Pom zoo:
Yuav ua li cas metabolic tshwm sim yam tsis muaj enzymes?
Enzymes yog cov txiaj ntsig zoo kawg thiab cov khoom siv roj ntsha tshwj xeeb. Qhov tseeb, tib neeg lub cev yuav tsis muaj nyob yam tsis muaj enzymesvim tias cov tshuaj lom neeg xav tau los tswj lub cev tsuas yog tsis tshwm sim sai txaus. Yuav ua li cas cov tshuaj metabolic tshwm sim yam tsis muaj enzymes?
Nyob rau hauv kev ua kom lub cev tsis muaj zog uas tsis muaj qhov xav tau?
Nyob hauv cov txheej txheem kev kawm hu ua classical conditioning, unconditioned stimulus (UCS) is one uas unconditionally, lawm, thiab cia li ua rau teb. Hauv lwm lo lus, cov lus teb tshwm sim yam tsis muaj kev kawm ua ntej. Qhov kev xav tau thiab tsis muaj kev cia siab yog dab tsi?
Puas tau tshwm sim lossis tshwm sim?
Qhov kev qhia "tshwm sim" tsis tuaj yeem siv qhov khoom ncaj qha, thiab yog li ntawd nws tsis muaj daim ntawv passive, yog li tsis muaj "yog/was/be tshwm sim" tense. Puas tau tshwm sim los yog tshwm sim? Ob daim ntawv yog grammatically raug (tsis sib xws rau kev hais lus ntawm qee cov lus Askiv purists).
Thaum qhov no yog qhov tshwm sim uas tshwm sim?
Lub hauv paus ntsiab lus ntawm kev mob Nrog qhov tshwm sim (uppada) ntawm qhov no, qhov tshwm sim. Thaum tsis muaj qhov no, qhov ntawd tsis tuaj. Nrog lub cessation (nirodha) ntawm no, uas ceases. - Samyutta Nikaya 12.61. Thaum qhov no yog qhov tshwm sim uas tshwm sim qhov tshwm sim uas tshwm sim thaum qhov no tsis yog qhov tsis yog qhov kev txiav txim siab tsis piav qhia?
Yuav ua li cas txiav txim siab seb qhov kev tshwm sim yog tshwm sim los yog tsis ua raws li txoj cai?
Kev sib xyaw ua lej ntawm kev hloov pauv enthalpy thiab hloov pauv hloov pauv tso cai rau kev hloov pauv ntawm lub zog dawb los suav. A tawm tsam nrog tus nqi tsis zoo rau ΔG tso tawm lub zog dawb thiab yog li nws tus kheej. Cov tshuaj tiv thaiv nrog qhov zoo ΔG yog tsis ua raws li kev xav thiab yuav tsis nyiam cov khoom.
