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Digestion Review Matching: Match the term to the definition. ___1. grinds food mechanically into small pieces A. esophagus ____2. produces bile B. teeth ____3. stores waste for release later C. liver ____4. muscular tube that serves as a passageway for food to the stomach D. stomach ____5. churns food mechanically and mixes with gastric juices E. rectum Matching: Match the term to the definition. ____6. absorbs water from waste material A. anus ____7. solid waste leaves the body here B. gall bladder ____8. absorption of the nutrients occurs here C. pancreas ____9. stores bile D. small intestines ____10. produces many enzymes to break down food in small intestines E. large intestines Multiple Choice: Answer with the correct choice. 11. What substance in the mouth contains an enzyme that begins chemical digestion? A. fiber B. mucus C. pepsin D. saliva 12. What process involves muscle contractions that move food through the esophagus? A. absorption B. peristalsis C. mechanical digestion D. elimination 13. In what part of the body are most nutrients absorbed? A. mouth B. stomach C. small intestine D. large intestine 14. In what part of the body does most chemical digestion take place? A. large intestine B. liver C. pancreas D. small intestine 15. Which of the following is NOT a function of the digestive system? A. changing sugars into starches B. eliminating undigested wastes from the body C. breaking down food into molecules that the body can use D. absorbing food molecules into the blood 16. Which of the following enable(s) the small intestine to absorb large amounts of nutrients? A. villi B. pancreas C. liver D. gallbladder Completion: 17. Name some of the accessory organs that food does not pass through a.______________________________ b. _____________________________ c.______________________________ 18. Most mechanical digestion occurs here _________________________. 19. A protein that speeds up chemical reactions in the body is an ______________. 20. The process of _____________________ involves the movement of nutrients through the wall of your digestive system into your blood. 21. _________________is a thick, slippery substance that lines the esophagus. 22. The process of breaking down food into small nutrient molecules is called _____________. Identify structures A-H A.__________________________ B.__________________________ C.__________________________ D.__________________________ E.__________________________ F. __________________________ G.__________________________ H.__________________________ A H G F E D B C