2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2023-12-17 02:46
Hauv mitochondria, cov hluav taws xob hluav taws xob siab tau muab rho tawm los ntawm cov khoom noj molecule (los ntawm cov tshuaj tiv thaiv redox) thaum nyob rau hauv chloroplast qhov chaw yog los ntawm cov photons ntes los ntawm lub teeb qhov chaw. Cov proton (H+) gradient cov ntaub ntawv los ntawm H+ ions accumulating nyob rau hauv lub thylakoid compartment (piv txwv li qhov chaw nyob rau hauv lub thylakoid.).
hydrogens mus qhov twg thaum chemiosmosis?
Hydrogen ions nyob rau hauv qhov chaw matrix tsuas tuaj yeem dhau dhau ntawm cov mitochondrial membrane innerlos ntawm cov membrane protein hu ua ATP synthase. Raws li protons txav los ntawm ATP synthase, ADP hloov mus rau ATP. Kev tsim cov ATP siv cov txheej txheem ntawm chemiosmosis hauv mitochondria yog hu ua oxidative phosphorylation.
Chemiosmosis tshwm sim nyob qhov twg hauv mitochondria?
Chemiosmosis ua haujlwm vim yog qhov hu ua electron thauj saw hlau (ETC) uas nyob hauv lub puab mitochondrial membrane. Lub ETC yog ib pab pawg ntawm cov proteins uas ua haujlwm ua ke thiab kis electrons rau ib leeg zoo li yog qos yaj ywm kub. ETC muaj peb cov proteins ua cov twj hydrogen ion.
H+ nyob qhov twg hauv cellular respiration?
Hauv cov hlwb prokaryotic, H+ ntws los ntawm sab nraud ntawm cytoplasmic membrane rau hauv cytoplasm, whereas hauv eukaryotic mitochondria, H+ ntws los ntawm intermembrane qhov chaw mus rau mitochondrial matrix.
Hydrogen ions tuaj qhov twg hauv cov saw hlau thauj hluav taws xob?
Tshwj xeeb, nws yog muab los ntawm txheej txheem uas pib nrog kev txav hluav taws xob los ntawm cov khoom siv hluav taws xob uas ua rau muaj kev cuam tshuam redox: cov saw hlau thauj electron. Qhov no ua rau cov hydrogen ions mus rau hauv qhov chaw matrix.
Gradients (ATP Synthases)
Pom zoo:
Nyob rau hauv angiosperms pollen yog tsim nyob rau hauv anthers ib feem ntawm?
Nyob rau hauv angiosperms, paj ntoos yog tsim los ntawm anthers ntawm the stamens hauv paj. Hauv gymnosperms, nws yog tsim nyob rau hauv microsporophylls ntawm microstrobili (txiv neej paj ntoos cones). Pollen muaj ib los yog ntau tshaj cov noob qoob loo thiab ib lub qe qe.
Thaum calcium ions nkag mus rau lub davhlau ya nyob twg synaptic?
Thaum calcium ions nkag mus rau hauv lub synaptic davhlau ya nyob twg, neurotransmitter molecules raug tshem tawm sai sai ntawm cov synaptic cleft synaptic cleft Lub synaptic cleft -tseem hu ua synaptic gap- yog qhov sib txawv ntawm cov hlwb ua ntej thiab postsynaptic uas yog txog 20 nm (0.
Yuav ua li cas txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau pom kev pom?
Txawm li cas los xij, corneal collagen cross-linking - cov txheej txheem qib siab tau pom zoo los ntawm US Food and Drug Administration (FDA) hauv xyoo 2016 - tuaj yeem txhim kho qhov pom kev hauv cov neeg mob txhua hnub nyoog. Corneal collagen cross-linking (CXL) tsis yog kho rau keratoconus, tab sis nws tuaj yeem pab tiv thaiv tus mob kom tsis txhob mob hnyav.
Puas muaj cov ntsiab lus siab ntawm hydrogen ions?
Ib qho kua qaub muaj cov ntsiab lus siab ntawm hydrogen ions (H + pib superscript, ntxiv rau, kawg superscript), ntau dua li cov dej ntshiab. Ib qho kev daws teeb meem muaj qhov qis H + pib superscript, ntxiv rau, qhov kawg superscript concentration, tsawg dua cov dej ntshiab.
Leej twg detering nyob rau hauv tag nrho cov nyob ntsiag to nyob rau sab hnub poob pem hauv ntej?
Detering yog tus neeg ua liaj ua teb los ntawm Txhua Tus Neeg Tsis Txaus Siabntawm Sab Hnub Poob los ntawm Erich Maria Remarque. Nws muaj siab mos siab muag, tshwj xeeb tshaj yog thaum nws los txog rau nees. Nws muaj kev kub ntxhov loj heev thaum nws hnov cov nees quaj thiab txawm sim tua lawv kom kawg lawv txoj kev txom nyem.
