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B20 C6 Your Own Digestion Map Objective: to colorfully and accurately map the layers of the digestive process. Color code your information – make a legend. 1) Structures: the organs of the digestive tract and the accessory organs - accurate shapes and sizes (use pg. 218 for size comparisons) mouth teeth salivary glands tongue epiglottis esophagus esophageal sphincter stomach pyloric sphincter duodenum jejenum ileum large intestine rectum anus liver gall bladder pancreas 2) Increases in Surface Area: Internal structure of stomach, small intestine rugae ridges villi microvilli 3) Sites of Mechanical Digestion chewing and mixing of food peristalsis churning segmenting 4) Sites of Chemical Digestion: Secretions labeled with arrows from site of production to site of action. Color code enzymes for the macromolecules they digest (starch, sugars, proteins, lipids, nucleic acids) trypsin bicarbonate bile peptidases nucleases nucleosidases 5) Label pH of mouth, stomach, small intestine, large intestine saliva mucus salivary amylase HCl pepsin gastric juices carbohydrases pancreatic lipase pancreatic amylase chymotrypsin 6) Digestion: This works best if you color code this proteins to amino acids lipids to glycerol and fatty acids polysaccharides to monosaccharides amino acids 7) Sites of Absorption glycerol and fatty acids monosaccharides water and salts Bacteria: explain their function: do this individually Colon bacteria – explain their function Science in the News: Research bacterial flora in small intestine and large intestine and report 3 WOW findings and medical implications. Don’t forget to include Who What When Where Why, and what media site you got the info from.