Unit I A: Digestion and Absorption- Alimentary Canal and Digestive Glands; Role of Digestive Enzymes and Gastrointestinal Hormones; Peristalsis, Digestion, Absorption and Assimilation of Proteins, Carbohydrates and Fats, Egestion, Calorific Value of Proteins, Carbohydrates and Fats; Nutritional Disorders: Protein Energy Malnutrition (PEM), Indigestion, Constipation, Vomiting, Jaundice, Diarrhea, Kwashiorkor