Qhov sib txawv tseem ceeb ntawm lactic acid thiab cawv fermentation nyob ntawm cov khoom kawg ntawm txhua txoj kev. Lactic acid fermentation tsim lactic acid ua cov khoom kawg thaum cov cawv fermentation ua cawv thiab carbon dioxide ua cov khoom kawg.
Ua pa yog ib qho tseem ceeb ntawm lub cev ua haujlwm ntawm txhua yam kab mob uas lawv tau txais lub zog rau txhua yam kev ua haujlwm metabolic ntawm lawv lub cev. Qhov tseem ceeb ntawm kev ua pa yog kev sib pauv ntawm cov pa roj ntawm lub cev thiab ib puag ncig. Nws pom tseeb hauv kev ua pa lossis ua pa sab nraud. Hauv kev muaj tiag, qhov kev pauv pauv tseem ceeb tshwm sim hauv cov hlwb ntawm cov kab mob aerobic, thiab nws yog cov txheej txheem hu ua cellular respiration. Txawm li cas los xij, qee yam kab mob tsis xav tau oxygen rau kev ua pa. Lawv yog cov kab mob anaerobic xws li qee yam kab mob (Clostridium hom) thiab kab mob cab (Ascaris), thiab lwm yam. Yog li ntawd, lawv nqa tawm anaerobic ua pa kom tsim tau lub zog. Muaj ob hom kev ua pa anaerobic uas yog lactic acid fermentation thiab cawv fermentation. Piv nrog rau kev ua pa aerobic, ob qho tib si cov txheej txheem anaerobic tsim cov ATP tsawg ntawm ib cov piam thaj molecule. Yog li ntawd, lawv yog cov txheej txheem tsawg dua.
Lactic Acid Fermentation yog dab tsi?
Lactic acid fermentation yog ib qho ntawm ob hom fermentation ua los ntawm cov kab mob anaerobic xws li cov kab mob lactic acid thiab cov leeg nqaij ntawm cov tsiaj. Nws tshwm sim thaum tsis muaj oxygen. Thaum lub sij hawm lactic acid fermentation, cov tsim pyruvate los ntawm glycolysis hloov mus rau lactic acid molecules. Yog li, pyruvate tsis dhau Kreb lub voj voog lossis oxidative phosphorylation. Hloov chaw, nws yogurt rau hauv lactic acid thiab ua kom muaj zog tsawg.
Daim duab 01: Lactic Acid Fermentation
Lub enzyme lactic dehydrogenase catalyzes hloov pauv ntawm pyruvic acid rau hauv lactic acid. Tsis tas li ntawd, thaum lub sij hawm hloov dua siab tshiab no, tus txo tus neeg sawv cev NADH hloov mus rau hauv NAD+ Qhov nce ntawm lactic acid fermentation yog 2 ATPs ib cov piam thaj molecule. Yog li ntawd, kev siv hluav taws xob yog kwv yees li 41%.
Alcoholic Fermentation yog dab tsi?
Alcoholic fermentation yog hom thib ob ntawm fermentation uas tshwm sim nyob rau hauv cov xwm txheej anaerobic. Nws yog cov txheej txheem ua pa anaerobic uas tsim lub zog hauv daim ntawv ntawm ATP hauv cov nroj tsuag thiab qee cov kab mob xws li cov poov xab, thiab lwm yam. Tsis tas li ntawd, cov txheej txheem no yuav tshwm sim hauv ob kauj ruam. Thaum pib, pyruvate hloov mus rau hauv ob qho carbon acetaldehyde los ntawm kev tshem tawm cov carboxyl pawg ua cov pa roj carbon dioxide molecule. Tom qab ntawd, acetaldehyde hloov mus rau hauv ethanol los ntawm kev noj electrons los ntawm NADH.
Daim duab 02: Caw Caw Caw
Ntawm no, NADH hloov mus rau NAD+ Li no, cawv fermentation ua rau ethanol thiab CO2 ua khoom kawg. Cov enzymes xws li aspyruvic acid decarboxylase thiab cawv dehydrogenase catalyze cov tshuaj tiv thaiv. Ntxiv mus, cov txheej txheem no tsim 2 ATP molecules rau cov piam thaj molecule. Yog li ntawd, lub zog efficiency yog li ntawm 29%.
Dab tsi zoo sib xws ntawm Lactic Acid thiab Alcoholic Fermentation?
- Lactic acid fermentation thiab cawv fermentation yog cov txheej txheem ua pa anaerobic.
- Kuj, ob txoj hauv kev tsim muaj zog.
- Ob leeg tshwm sim nyob rau hauv cov xwm txheej anaerobic thiab tsim me ntsis ntawm ATP (2ATP molecules los ntawm ib qho qabzib molecule).
- Tsis tas li ntawd, glycolysis yog cov txheej txheem ntau hauv ob txoj kev.
- Ntxiv mus, NAD + yog tus neeg sawv cev txo qis thiab ob qho tib si rov tsim tus neeg txo qis no.
- Dhau li ntawm, nyob rau hauv ob txoj kev no, cov khoom kawg yog cov organic tebchaw loj, uas lawv tus kheej yog cov khw muag khoom ntawm lub zog.
Qhov txawv ntawm Lactic Acid thiab Alcoholic Fermentation yog dab tsi?
Lactic acid fermentation thiab cawv fermentation yog ob hom txheej txheem fermentation uas tshwm sim nyob rau hauv cov xwm txheej anaerobic. Ob txheej txheem tsim lub zog, tab sis tsawg zog. Txawm li cas los xij, qhov sib txawv tseem ceeb ntawm lactic acid thiab cawv fermentation yog tias lactic acid fermentation ua rau lactate los ntawm qabzib. Txawm li cas los xij, cawv fermentation ua rau ethanol thiab carbon dioxide los ntawm qabzib.
Tsis tas li ntawd, lactic acid fermentation tshwm sim hauv cov leeg nqaij thiab cov kab mob thaum muaj cawv fermentation tshwm sim hauv cov nroj tsuag thiab qee cov kab mob xws li cov poov xab. Yog li, qhov no yog lwm qhov sib txawv ntawm lactic acid thiab cawv fermentation. Lactic acid fermentation yog ib qho tseem ceeb nyob rau hauv yogurt thiab cheese ntau lawm thaum cawv fermentation yog ib qho tseem ceeb hauv mov ci, caw, npias thiab vinegar ntau lawm.
Hauv qab infographic ntawm qhov sib txawv ntawm lactic acid thiab cawv fermentation qhia tag nrho cov kev sib txawv no kom meej.
Summary – Lactic Acid vs Alcoholic Fermentation
Fermentation yog ob hom; lactic acid fermentation thiab cawv fermentation. Ob txheej txheem tsim lub zog thiab tshwm sim nyob rau hauv cov xwm txheej anaerobic thaum tsis muaj oxygen. Tsis tas li ntawd, ob hom fermentation yog kev lag luam tseem ceeb. Txawm li cas los xij, hauv kev nthuav dav qhov sib txawv, qhov sib txawv tseem ceeb ntawm lactic acid thiab cawv fermentation yog tias lactic acid fermentation ua rau lactate los ntawm qabzib thaum cawv fermentation ua rau ethanol thiab carbon dioxide los ntawm qabzib. Tsis tas li ntawd, lactic acid fermentation tshwm sim nyob rau hauv cov leeg hlwb ntawm cov tsiaj thiab qee cov kab mob, thaum muaj cawv fermentation tshwm sim hauv cov ntaub so ntswg thiab qee cov kab mob.
