Where does the energy come from to make NADPH in the light reactions?
A. From the energy released by ATP molecules
B. From the energy stored in light
c. From the energy stored by the Calvin cycle
D. From the potential energy of ADP molecules
SUBMIT
Figure 19.2. The Light Reactions of Photosynthesis. Light is absorbed and the energy is used to drive electrons from water to generate NADPH and to drive protons across a membrane. These protons return through ATP synthase to make ATP.
