UNIT 5 PROTEIN. 🧬 AMINO ACIDS: Structure, Classification, Functions, and Clinical Significance 🔹 Definition Amino acids are organic compounds that serve as the building blocks of proteins. They contain two main functional groups: 🔹 Classification of Amino Acids 1. Based on Nutritional Requirement 2. Based on Polarity 🔹 Functions of Amino Acids 🔹 Clinical Relevance in Nursing 🔬 HORMONES: Types, Functions, Regulation, and Nursing Relevance 🔹 Definition Hormones are chemical