Stop memorizing the Krebs Cycle. Start understanding Energy Flow. Cellular Energetics is the engine of life, but students often get lost in the sea of enzymes and electron carriers. This Helix-Prep packet focuses on the "Transfer of Energy," teaching students to analyze how organisms capture, store, and use free energy. Designed for the rigor of the current AP Exam, this resource moves beyond rote memorization to high-level system analysis. What’s Inside:Stimulus-Based MCQs: High-level question