A. Fireflies use enzymes to produce light by bioluminescence. B. Researchers transferred genes for bioluminescence into strains of Salmonella so that the course of infection could be tracked by visualization. I. Energy and the Underlying Organization of Life A. Defining Energy 1. Kinetic energy is the energy of motion.
Energy transfers release heat.
Energy can be obtained from the sun, inorganic, and organic substances. The One-Way Flow of Energy 1. When cells convert one form of energy to another, there is a change in the amount of potential energy. B. ATP, The Cell's Energy Currency 1. ADP can be recycled to ATP very rapidly.