Chapter 9 in deals with Energy. In the lecture, I go over what energy is, and how it is produced and stored in the form of ATP. I then deal with Photosynthesis (in plants), Cellular Respiration and fermentation. You can view the presentation slides below. If you click to the right of the slide, it will move forward. If you click to the left of the slide, it will move backward. You can even view the presentation in full screen. Have fun.