Step one: the light energy excites the electron in photosystem two. The light energy also causes a water molecule to split, releasing an electron into the electron transport system, a hydrogen ion also called a proton into a thylakoid space, and oxygen as a waste product. Step 2: The excited electron moves from photosystem 2 to an electron-acceptor molecule in the thylakoid membrane. Step 3: The electron-acceptor transfers the electrons along a series of electron-carriers to photsystem 1. Step 4: Photosystem 1 transfers the electrons to a protein called ferrodoxin . The electrons lost by the photosystem 1 are replaced by electrons shuttled from photo system 2. Step 5: Ferrodoxin transfers the electrons to the electron carrier NADP+ forming energy storage molecules NADPH
First step: six carbon dioxide molecules combine with 5 carbon compounds to form twelve 3-carbon molecules called 3-phosphoglycerate. Second step: The chemical energy stored in ATP and NADPH is tranfered to the 3-PGA molecules to form high energy molecules. Third Step: Two G3P molecules leaves the cycle to be used for product of the glucose. Final step: Rubisco converts the G3P molecules into 5 carbon molecules, these molecules combine with new carbon dioxide molecules.