Video: P680 thiab p700 yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Ob lub photosystems muaj ntau cov pigments uas pab khaws lub teeb lub zog, nrog rau ib khub tshwj xeeb ntawm chlorophyll molecules pom nyob rau hauv lub hauv paus (qhov chaw tshwm sim) ntawm lub photosystem. Qhov tshwj xeeb khub ntawm photosystem kuv hu ua p700 ua , thaum tus khub tshwj xeeb ntawm photosystem II hu ua p680 ua.
Ntawm no, qhov txawv ntawm p680 thiab p700 yog dab tsi?
Nws yog nyob rau sab hauv ntawm lub thylakoid membrane. p700 ua yog lub chaw yees duab. p680 ua yog lub chaw yees duab. Photosystem I lossis PS 1 muaj chlorophyll A-670, chlorophyll A-680, chlorophyll A-695, chlorophyll A-700, chlorophyll B, thiab carotenoids.
Ib yam li ntawd, p680 sawv cev rau dab tsi? p680 ua , lossis Photosystem II thawj tus pub dawb, (qhov twg P sawv rau pigment) hais txog ib qho ntawm ob qho tshwj xeeb chlorophyll dimers (tseem hu ua khub tshwj xeeb), PD1 los yog PD2.
Tsis tas li ntawd, lub luag haujlwm ntawm p680 yog dab tsi?
Lub chaw tshuaj tiv thaiv chlorophyll (los yog tus thawj electron pub) ntawm photosystem II uas yog feem ntau reactive thiab zoo tshaj plaws nyob rau hauv absorbing lub teeb ntawm wavelength ntawm 680 nm. Ntxiv. p680 ua yog ib pawg ntawm cov pigments uas yog excitonically ua ke los yog ua raws li cov pigments yog ib qho molecule thaum lawv nqus ib photon.
Lub luag haujlwm ntawm p700 hauv photosynthesis yog dab tsi?
p700 ua , los yog photosystem kuv tus neeg pub dawb, (qhov twg P sawv cev rau cov xim) yog cov tshuaj tiv thaiv-center chlorophyll ib lub molecule nyob rau hauv koom nrog photosystem I. Nws nqus spectrum peaks ntawm 700 nm. Thaum photosystem kuv absorbs lub teeb, ib qho hluav taws xob zoo siab rau qib siab zog hauv lub zog p700 ua tshuaj chlorophyll.
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