Vim li cas p680 tseem ceeb rau photosynthesis?
Vim li cas p680 tseem ceeb rau photosynthesis?

Video: Vim li cas p680 tseem ceeb rau photosynthesis?

Video: Vim li cas p680 tseem ceeb rau photosynthesis?
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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.

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