Digestive System Frog vs. Human

Mechanical Digestion Breaking down of food into smaller pieces Mouth –chewing Stomach - churning

Chemical digestion Breaking food down into small molecules In mouth saliva breaks down carbohydrates In stomach, acid breaks down protein In small intestine (duodenum), breakdown fats, proteins and carbohydrates

Food travels from mouth to anus Mouth – mechanical and chemical digestion of starch Esophagus – peristalsis moves food from mouth to stomach Stomach – mechanical and chemical digestion of protein Small intestine – chemical digestion of fat, protein and carbohydrates Small intestine – absorb nutrients through villi

In the duodenum Liver secretes bile from the gall bladder into the duodenum to chemically breakdown fat Pancreas secretes enzymes to complete the digestion of starch, fat and carbohydrates

Large Intestine Absorption of water Removal of undigested waste, fiber and dead cells

Frog digestive system

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