○ Know location and purpose ○ Know what goes in and out of light rxns and each step ○ What is chlorophyll and what does it do? ○ How do electrons and energy flows through the components of the light reactions? ○ Photosystem II ○ ETC ○ Photosystem I ○ ATP Synthase ○ How are gradients important to the light reactions? How are they made? ○ Where do H+ ions come from in the lumen and where do they go? Why are they important? ○ What gets oxidized and what gets reduced along the way? How do you know? ○ What do the light reactions pass onto the Calvin cycle? What do they get from the Calvin Cycle and why? Why is this important? ○ Active vs. passive transport – how to tell the difference and definition ■ Where do you see each of these processes in the light reactions?