-Sun strikes chlorophyll:
1) Light splits H2O into H2 and
O2 molecule
2) Energizes electrons in ETC,
Electron Transport Chain
-O2 is released into atmosphere
-H2 go to stage II
-Extra phosphate is picked up
to form ATP (Adenosine
Triphosphate)
-NADP+ picks up H2 and 2
electrons from Stage I and
creates NADPH
-CO2 enters plant and the
Calvin Cycle
-H2 is “attached” on to CO2 to
form a carbohydrate called
glucose
-Glucose used to make ATP in
cellular respiration or stored as
starch