Photosynthesis Conversion of light E to chemical E (food) Conversion of light E to chemical E (food)...
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Transcript of Photosynthesis Conversion of light E to chemical E (food) Conversion of light E to chemical E (food)...
Photosynthesis Conversion of light E to chemical E (food)
6 H2O + Light + 6 CO2 C6H12O6 + 6 O2
Light ReactionsH2O + Light E Unstable Chem E (ATP + NADPH)
Dark ReactionsCO2 + Unstable Chem E (ATP + NADPH) Stable Chem E (sugars)
From AirFrom Soil Food Waste
Chloroplast Structure
Light Reactions
ETC
Stroma
Thylakoid Space
Chlorophyll absorbs light to energize electrons Electrons run through an ETC The released E builds proton gradient
Chlorophyll splits H2O’s to replace lost e-
O2 is released
Light Reactions
Stroma
Thylakoid Space
ETC
Light Reactions
Stroma
Thylakoid Space ATP Synthase
ETC
PrimaryProducts
of Light Rxns
NADP picks up e- and H+
Light Reactions
Stroma
Thylakoid Space
ETC
Dark Reactions(Reactants)
From air
From Light ReactionsFrom Light Reactions
Bonus!
All organicmolecules
Dark Reactions(Products)
From Light Reactions
Back to Light Reactions
Photosynthesis Review6 H2O + 6 CO2 + Light C6H12O6 + 6 O2
1) For each molecule above, is it used or produced? In the light or dark rxns?
2) What is (are) the primary products of the light reactions? What do they provide to the dark reactions?
3) What other purpose might the final carbohydrate produced in photosynthesis serve aside from acting as a food source?