Photosynthesis - Light Reaction
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6 Terms
Two Halves of Photosynthesis
Light Reaction
in thylakoids
uses photosynthetic pigments
splits H2O and produces O2 → creates ATP and NADPH
Calvin Cycle
in stroma
uses ATP and NADPH from light reaction
Carbon Fixation of CO2, produces sugars
Photosynthesis is a series of RedOx reactions
Reduction: gaining electrons
Oxidation: losing electrons
OIL RIG
Light Reaction Diagram
Photosystems
Integral protein complexes located within the phospholipid bilayer
In chloroplast: the thylakoid membrane
In cyanobacteria: the cell membrane
Contain chlorophylls and accesory pigments
Photoactivation (in photosystems)
Occurs in PSI
Photons of light excite electrons, which are emitted from the reaction center and transferred to NADP+ reductase enzyme in the stroma (what converts NADP to NADPH)
Photophosphorylation
H+ turns ATP synthase to create the energy that is needed to make ATP out of ADP → Ultimitely driven by light
Water → PSII → 1st ETC → PSI → NADPH
Note 
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