Protein Protein are polymers of small building blocks called amino acids Classification of Protein 1. Simple Protein 2. Compound or Conjugated Protein 3. Derived Protein Steroids 1. Cholesterol 2. Ergosterol 3. Phospholipids Classification of Lipids 1. Simple Lipids 2. Compound Lipids 3. Drived or Associated Lipids Importance of Lipids Chapter No 14 Macromolecules chemistry Part 2