1. More than you ever wanted to know about Photosynthesis (part 1) Light Dependent Reactions: Photosystem II and Photosystem I

2. Energy Carrying Molecules ADP is converted into ATP by adding a phosphate group NADP+ is converted into NAPDH by adding two high energy electrons and a hydrogen ion (H+) Low Energy MoleculeComponent added to energize molecule High Energy Molecule ADPPhosphateATP NADP+2 electrons and hydrogen ion (H+) NADPH

3. Structure of Chloroplasts Grana

4. Photosystem I Pigments in photosystem I use light to energize electrons. Energized electrons are used to convert NADP+ to NADPH which is used to make glucose

5. Photosystem II Pigments in photosystem II use light to energize an electron and sent it into an electron transport chain. Electrons sent to the ETC are replaced by splitting water into two H+ ions, two electrons and one oxygen atom.

6. Electron Transport Chain High energy electrons move from photosystem II to photosystem I through an electron transport chain (series of enzymes) The energy from the electrons is used to pump H+ ions inside the thylakoid membrane.

7. ATP Synthase The concentration gradient created by the buildup of H+ ions inside the thylakoid is used to form ATP from ADP as H+ ions pass through an enzyme called ATP synthase.

8. Light Dependent Reactions