Unit 1 discusses the foundational concepts of the study of Anatomy & Physiology.
Chapter 1: An Introduction to Anatomy & Physiology
Chapter 2: The Chemical Level of Organization
Chapter 3: The Cellular Level of Organization
Chapter 4: The Tissue Level of Organization
6 min video on identifying biomolecules
How do Enzymes work?
Short 6 min video on enzymes & activation energy.