Unit 3: Cellular Energetics focuses on how cells capture, store, and use energy. This worksheet is designed to help you review key concepts from the College Board AP Biology Course and Exam Description (CED) and practice the types of questions you may encounter on the AP Exam, including conceptual understanding, data interpretation, and visual modeling. Topics include: enzymes, cellular respiration, photosynthesis, energy coupling, and the role of biological macromolecules in metabolism. Answ