Explore a comprehensive 22-minute video review of the digestive system, focusing on the processes of digestion, absorption, and excretion. Delve into the breakdown of carbohydrates, fats (lipids), and proteins, and learn about the absorption of amino acids, free fatty acids, and monosaccharides such as glucose, fructose, and galactose. Examine the excretion process, also known as defecation or elimination. Gain valuable insights into gastroenterology and the digestive system (GI) within the field of biology.