section 1. Biophysical chemistry, metabolism, second messengers, and ultrastructure
section 2. Membrane potential, transport physiology, pumps, and exchangers
section 3. Membrane excitability and ion channels
section 4. Ion channels as targets for toxins, drugs, and genetic diseases
section 5. Synaptic transmission and sensory transduction
section 6. Muscle and other contractile systems
section 7. Protozoa and bacteria
section 8. Specialized processes : photosynthesis and bioluminescence.