Qhov sib txawv tseem ceeb ntawm cov kav hlau txais xov complex thiab cov tshuaj tiv thaiv qhov chaw yog lub kav hlau txais xov complex yog ib qho array ntawm cov proteins thiab chlorophyll b molecules uas hloov lub teeb lub zog mus rau qhov chaw cov tshuaj tiv thaiv ntawm lub photosystem, thaum lub chaw tshuaj tiv thaiv yog complex ntawm ntau cov proteins, pigments, thiab co-factors uas ua rau thawj lub zog hloov pauv cov tshuaj tiv thaiv ntawm cov txheej txheem photosynthesis.
Photosynthesis yog txheej txheem uas cov nroj tsuag siv hnub ci, dej, thiab carbon dioxide los tsim cov pa oxygen thiab lub zog hauv daim ntawv ntawm cov piam thaj. Lub kav hlau txais xov complex thiab cov tshuaj tiv thaiv chaw yog ob txoj kev pab cov photosynthesis cov tshuaj tiv thaiv hauv cov nroj tsuag thiab cyanobacteria. Lub chaw tshuaj tiv thaiv yog lub hauv paus complex ntawm lub photosystem, thiab lub kav hlau txais xov complex yog tam sim no nyob ib ncig ntawm nws. Yog li ntawd, lub kav hlau txais xov complex thiab cov tshuaj tiv thaiv chaw yog ob lub ntsiab ntawm lub photosystem uas tswj photosynthesis.
Antenna Complex yog dab tsi?
Lub kav hlau txais xov complex yog ib qho ntawm cov protein thiab chlorophyll b molecules nyob rau hauv thylakoid membrane ntawm cov nroj tsuag, algae, thiab cyanobacteria, uas hloov lub teeb lub zog mus rau qhov chaw cov tshuaj tiv thaiv ntawm lub photosystem. Tsis tas li ntawd, lub kav hlau txais xov complex feem ntau muaj chlorophyll b, xanthophylls, thiab carotene. Carotenoids muaj lwm txoj haujlwm tseem ceeb. Raws li lawv yog cov antioxidants, lawv tiv thaiv cov duab-oxidative puas tsuaj ntawm chlorophyll molecules. Txhua tus kav hlau txais xov complex feem ntau muaj li ntawm 250 thiab 400 xim molecules. Lub zog cov pigments absorbed yog shuttleed los ntawm resonance zog hloov mus rau ib tug chlorophyll protein complex hu ua cov tshuaj tiv thaiv chaw ntawm txhua photosystem. Tom qab ntawd, lub chaw tshuaj tiv thaiv pib ua cov txheej txheem biochemical.
Daim duab 01: Kav hlau txais xov Complex
Muaj ob lub kav hlau txais xov (LH1 thiab LH2). Kav hlau txais xov complex kuv tau mus tas li rau photosystem kuv ntawm cov nroj tsuag tshwj xeeb subunit PSaG. Lub kav hlau txais xov complex II feem ntau khi rau photosystem II. Txawm li cas los xij, nws tuaj yeem undock thiab khi photosystem II es tsis txhob nyob ntawm lub teeb.
Reaction Center yog dab tsi?
Lub chaw tshuaj tiv thaiv yog qhov nyuaj ntawm ntau cov proteins, pigments, thiab co-factors uas ua rau thawj lub zog hloov pauv cov tshuaj tiv thaiv ntawm photosynthesis. Lub molecular excitation uas tshwm sim ncaj qha los ntawm lub hnub ci los yog pauv lub zog excitation los ntawm lub kav hlau txais xov complex ua rau muaj kev hloov pauv hluav taws xob raws txoj hauv kev ntawm cov protein-coupled co-factors nyob rau hauv cov tshuaj tiv thaiv chaw. Cov co-factors no feem ntau yog lub teeb-absorbing molecules xws li chlorophyll, pheophytin, thiab quinines. Cov tshuaj tiv thaiv biochemical muaj nyob hauv qhov chaw tshuaj tiv thaiv.
Daim duab 02: Reaction Center
Ua ntej, lub zog ntawm photons yog siv los ntawm cov xim los ua kom nws cov electron. Thib ob, lub zog pub dawb yog siv tom qab siv (ntawm cov saw hlau ntawm cov khoom siv hluav taws xob nyob ze) kom hloov cov hydrogen atoms los ntawm dej lossis H 2S rau CO 2txhawm rau tsim cov piam thaj. Thaum kawg, cov kauj ruam hloov hluav taws xob no ua rau kev hloov pauv ntawm lub zog ntawm photons los khaws cov tshuaj muaj zog hauv qabzib.
Dab tsi zoo sib xws ntawm Antenna Complex thiab Reaction Center?
- Lub kav hlau txais xov thiab qhov chaw tshuaj tiv thaiv yog ob qhov tseem ceeb ntawm lub tshuab photosystem.
- Ob lub complexes muaj nyob rau hauv lub thylakoid membrane.
- Ob txoj kev tuaj yeem txheeb xyuas tau hauv cov nroj tsuag, algae, thiab cyanobacteria.
- Lub kav hlau txais xov txoj haujlwm yog khi rau qhov chaw tshuaj tiv thaiv los ntawm ib qho subunit.
- Ob txoj kev tseem ceeb heev hauv kev tswj cov photosynthesis.
Qhov txawv ntawm Antenna Complex thiab Reaction Center yog dab tsi?
Kav hlau txais xov complex yog ib qho ntawm cov proteins thiab chlorophyll b molecules uas hloov lub teeb lub zog mus rau qhov chaw tshuaj tiv thaiv ntawm lub photosystem, thaum lub chaw tshuaj tiv thaiv yog ib qho nyuaj ntawm ntau cov proteins, pigments, thiab co-factors uas ua rau thawj lub zog. Kev hloov pauv cov tshuaj tiv thaiv ntawm photosynthesis. Yog li, qhov no yog qhov sib txawv tseem ceeb ntawm cov kav hlau txais xov complex thiab cov tshuaj tiv thaiv chaw. Tsis tas li ntawd, lub kav hlau txais xov complex muaj chlorophyll b molecules thaum lub chaw tshuaj tiv thaiv muaj chlorophyll ib molecules.
Cov hauv qab no qhia txog qhov sib txawv ntawm tus kav hlau txais xov thiab qhov chaw tshuaj tiv thaiv hauv daim ntawv teev npe rau kev sib piv ntawm ib sab.
Summary – Antenna Complex vs Reaction Center
Lub kav hlau txais xov complex thiab cov tshuaj tiv thaiv qhov chaw yog ob qhov tseem ceeb ntawm lub photosystem uas tswj cov txheej txheem photosynthesis. Antenna complex yog ib qho ntawm cov protein thiab chlorophyll b molecules. Nws hloov lub teeb lub zog mus rau qhov chaw tshuaj tiv thaiv. Lub chaw tshuaj tiv thaiv yog ib qho nyuaj ntawm ntau cov proteins, pigments, thiab co-factors. Nws ua rau thawj lub zog hloov pauv cov tshuaj tiv thaiv ntawm photosynthesis. Yog li, qhov no yog cov ntsiab lus ntawm qhov sib txawv ntawm cov kav hlau txais xov thiab qhov chaw tshuaj tiv thaiv.
