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What are the most important things to know about the digestive system?
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The most important thing to know about the digestive system is that it is responsible for breaking down food into smaller molecules that can be absorbed by the body. This process involves a complex series of chemical reactions, which occur in the mouth, stomach and small intestine. These reactions include the breakdown of carbohydrates, proteins and fats into simple sugars, amino acids and fatty acids, respectively. Additionally, enzymes produced by the pancreas and liver help to facilitate digestion. Finally, bile produced by the liver helps to break down fat into smaller particles that can be more easily absorbed.