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Samenvatting PPH-10806 Structuur en Functie van Planten Fysiologie
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uitgebreide samenvatting van PPH-10806 Structuur en Functie van Planten het fysiologie gedeelte. Behaalde resultaat: 8.0
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By: Chris98 • 6 year ago
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Structuur en Functie van PlantenFysiologie
Fotosynthese
Fotosynthese energiehuishouding van plant
Oude theorie fotosynthesereactie
CO2 + H2O + licht (CH2O) + O2
O2 splitst af van CO2
Oude theorie klopt niet bij fotosynthesereactie wordt water gesplitst
CO2 + 2H2O + licht (CH2O) + H2O + O2
Fotosynthese
Splitsing van water zorgt voor vrijkomen van zuurstof
Gebruikte CO2 wordt vastgelegd reductie, kost energie
6 x fotosynthesereactie = 1 glucose
Licht opvangen m.b.v. pigmenten in chloroplasten
Chlorofyl-A
Chlorofyl-B
Caroteen
Chlorofyl absorbeert blauw en rood, weerkaatst groen
Caroteen absorbeert blauw en groen, weerkaatst oranje
Licht absorberen elektron naar hoger energielevel excited state
Terugkeren elektron naar lager energielevel ground state
Fluorescentie
o Energie in vorm van warmte wordt vrijgegeven in foton
Resonance energy transfer
o Energie getransporteerd naar ander pigment
Elektronenacceptor
o Elektron wordt getransporteerd naar dichtbijgelegen molecuul
Fluorescentielicht ALTIJD ROOD ONGEACHT KLEUR GEABSORBEERDE LICHT
Maat voor hoeveelheid energie die niet nuttig gebruikt kan worden
o Meten stress en gezondheid van plant
Meer fluorescentie meer stress
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