Describe the major function of each organ used in the digestive process.
What will be an ideal response?
Answers will vary.
| Secretion | Sites of Production | Functions |
| Saliva | Mouth | Dissolves taste-forming compounds; contains many compounds that aid swallowing, digestion, and protection of teeth |
| Mucus | Mouth, stomach, small and large intestines | Protects GI tract cells, lubricates digesting food |
| Enzymes (amylases, lipases, proteases) | Mouth, stomach, small intestine, pancreas | Break down carbohydrates, fats, and protein into forms small enough for absorption |
| Acid (HCl) | Stomach | Promotes digestion of protein, destroys microorganisms, increases solubility of minerals |
| Bile | Liver (stored in gallbladder) | Aids in fat digestion (emulsifies fat) |
| Bicarbonate | Pancreas, small intestine | Neutralizes stomach acid when it reaches small intestine |
| Hormones | Stomach, small intestine, pancreas | Regulate food intake, digestion, and absorption |
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