-All most likely occur on steep slopes
-They all depend on gravity
-They all occur after heavy rain
The light energy splits water and extracts electrons in photosystem. Electrons are re-energized in PSI are those high energy electrons reduce NADP+ to NADPH. Light energy is converted into chemical energy in a multiprotein complex called a photosystem. The movements of ions across a selectively permeable membrane down their electrochemical gradient.
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I am not sure-
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