Gavin Morgan 11/9/2015 Chapter 8 2-Point Notes Photosynthesis combines CO2 and H2O, producing glucose and O2: 1. Photosynthesis takes place in three stages: capturing energy from sunlight; using the energy to make ATP and to reduce the compound NADP+, an electron carrier, to NADPH; and using the ATP and NADPH to power the synthesis of organic molecules from CO2 in the air. 2. In plants, photosynthesis takes place in chloroplasts: 1. The internal membrane of chloroplasts, called the thylakoid membrane, is a continuous phospholipid bilayer organized into flattened sacs that are found stacked on one another in columns called grana.