Describe the major function of each organ used in the digestive process.

What will be an ideal response?


Answers will vary.

SecretionSites of ProductionFunctions
SalivaMouthDissolves taste-forming compounds; contains many compounds that aid swallowing, digestion, and protection of teeth
MucusMouth, stomach, small and large intestinesProtects GI tract cells, lubricates digesting food
Enzymes (amylases, lipases, proteases)Mouth, stomach, small intestine, pancreasBreak down carbohydrates, fats, and protein into forms small enough for absorption
Acid (HCl)StomachPromotes digestion of protein, destroys microorganisms, increases solubility of minerals
BileLiver (stored in gallbladder)Aids in fat digestion (emulsifies fat)
BicarbonatePancreas, small intestineNeutralizes stomach acid when it reaches small intestine
HormonesStomach, small intestine, pancreasRegulate food intake, digestion, and absorption

Nutritional Science

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