where does electron transport occur?
Electron Transport in Photosynthesis. The above illustration draws from ideas in both Moore, et al. and Karp to outline the steps in the electron transport process that occurs in the thylakoid membranes of chloroplasts during photosynthesis. Both Photosystems I and II are utilized to split water to get electrons. Electron transport helps establish a proton gradient that powers ATP production and also stores energy in the reduced coenzyme NADPH. This energy is used to power the Calvin Cycle to produce sugar and other carbohydrates.