Video: Vim li cas p680 tseem ceeb rau photosynthesis?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov pigments no hloov lub zog ntawm lawv cov electrons zoo siab rau qhov tshwj xeeb Photosystem II chlorophyll molecule, p680 ua , uas absorbs lub teeb zoo tshaj plaws nyob rau hauv cheeb tsam liab ntawm 680 nanometers. Cov electrons los ntawm dej ntws mus rau Photosystem II, hloov cov electrons poob los ntawm p680 ua.
Tom qab ntawd, ib tug kuj yuav nug, dab tsi yog lub luag hauj lwm ntawm p680 nyob rau hauv photosynthesis?
p680 ua . 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. 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.
Vim li cas p680 yog qhov muaj zog oxidizing tus neeg sawv cev? Lub molecule yog oxidized sai sai hloov nws cov electron mus rau thawj txais. Nco tseg: P680+ yog lub muaj zog tshaj lom oxidizing tus neeg sawv cev vim nws faib dej rau hauv Hydrogen thiab Oxygen li no los ntawm oxidizing dej p680 ua txais ob lub electrons.
Ib sab ntawm no, vim li cas p680 tsim nyog?
Nws yog xav tau kom ntes tau lub zog txaus los ua cov tshuaj biosynthetic ntawm cov tshuaj tiv thaiv tsaus nti. Nws qhov chaw tshuaj tiv thaiv yog ib qho molecule hu ua p680 ua uas absorbs lub teeb siab tshaj plaws ntawm 680 nm.
P680 sawv cev rau dab tsi?
p680 ua , lossis Photosystem II thawj tus pub dawb, (qhov twg P sawv rau pigment) yog hais txog ib qho ntawm ob qho tshwj xeeb chlorophyll dimers (tseem hu ua khub tshwj xeeb), PD1 los yog PD2.
Pom zoo:
Dab tsi yog photosynthesis thiab vim li cas nws tseem ceeb?
Photosynthesis yog ib qho tseem ceeb rau cov kab mob uas muaj sia nyob vim tias nws yog qhov thib ib ntawm cov pa oxygen hauv qhov chaw. Cov nroj tsuag ntsuab thiab ntoo siv photosynthesis los ua zaub mov los ntawm tshav ntuj, carbon dioxide thiab dej hauv qhov chaw: Nws yog lawv lub hauv paus ntawm lub zog
Vim li cas qhov tseem ceeb ntawm qhov tseem ceeb?
Thaum koj pom tus nqi kiag li hauv qhov teeb meem lossis qhov sib npaug, nws txhais tau hais tias txhua yam nyob hauv tus nqi tiag tiag yog qhov zoo. Cov txiaj ntsig tsis zoo feem ntau siv rau hauv cov teeb meem cuam tshuam nrog kev nyob deb thiab qee zaum siv nrog qhov tsis sib xws. Qhov ntawd yog qhov tseem ceeb uas yuav tsum nco ntsoov nws zoo li qhov deb ntawm xoom
Vim li cas cov nuj nqis tseem ceeb tseem ceeb thaum qhia txog kev ntsuas?
Cov duab tseem ceeb yog qhov tseem ceeb los qhia qhov tseeb ntawm koj cov lus teb. Qhov no yog qhov tseem ceeb hauv kev tshawb fawb thiab engineering vim tias tsis muaj cov cuab yeej ntsuas tuaj yeem ua qhov ntsuas nrog 100% precision. Siv cov nuj nqis tseem ceeb tso cai rau tus kws tshawb fawb paub tias cov lus teb meej npaum li cas, lossis qhov tsis paub meej npaum li cas
Dab tsi yog ob qho laj thawj vim li cas photosynthesis tseem ceeb?
Photosynthesis yog cov nroj tsuag noj hauv dej, carbon dioxide, thiab lub teeb los ua suab thaj thiab oxygen. Qhov no tseem ceeb heev vim tias txhua yam muaj sia nyob xav tau oxygen kom muaj sia nyob. Txhua tus neeg tsim khoom tsim cov pa oxygen thiab qab zib rau cov neeg siv khoom thib ob thiab tom qab ntawd cov tsiaj txhu noj cov tsiaj uas noj cov nroj tsuag
Yuav ua li cas yog vim li cas tus qauv ntawm ib qho enzyme tseem ceeb heev rau nws txoj haujlwm hauv cov khoom muaj sia?
Enzymes ua kom cov tshuaj tiv thaiv uas tshwm sim hauv cov hlwb. Qhov kev ua haujlwm no cuam tshuam ncaj qha rau lawv cov qauv, nrog rau txhua qhov enzyme tau tshwj xeeb zoo li tus ua kom muaj zog rau ib qho tshuaj tiv thaiv. Kev poob ntawm cov qauv ua rau poob haujlwm. - Kub, pH, thiab kev tswj cov molecules tuaj yeem cuam tshuam rau kev ua haujlwm ntawm cov enzymes