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How do the COMPONENTS of a System INTERCONNECT ?

How do the COMPONENTS of a System INTERCONNECT ?. http://www.whfoods.com/genpage.php?tname=faq&dbid=16#digestion Animation of Digestion. System have BFS…. IC . I nterconnectedness C hanges. The “ BFS ”. B ehavior = Role (role of each part)

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How do the COMPONENTS of a System INTERCONNECT ?

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  1. How do the COMPONENTS of a SystemINTERCONNECT? http://www.whfoods.com/genpage.php?tname=faq&dbid=16#digestion Animation of Digestion

  2. System have BFS…. IC Interconnectedness Changes

  3. The “BFS” • Behavior = Role (role of each part) • Function = Purpose (purpose of the whole system) • Structure = Parts BF  Behavior vs. Function Behavior is specific Function is general

  4. System have BFS…. IC • Interconnection – there are links between parts • Changes – If a part fails to perform, it will affect the whole system

  5. System Digestive

  6. INGESTION

  7. FUNCTION/ PURPOSE OF SYSTEM

  8. Digestion • breakdown of food  into molecular components small enough to cross the plasma membrane

  9. saliva saliva saliva Mechanical Digestion Same volume of food Small total surface area Larger total surface area A larger surface area speeds up digestion

  10. Smaller pieces allow for more areas of contact for enzymes and digestive juices to act on speeding up digestion

  11. Digestion Definition • Digestion is the breaking down of food into smaller and simpler substances • Mechanical digestion and Chemicaldigestion do this in different ways ABSORBED ELIMINATED

  12. Chemical Digestion is the breaking down of large complicated molecules into simpler ones by the use of enzymes

  13. http://web.ukonline.co.uk/webwise/spinneret/other/anenz.htm Orange- food Red and yellow- products ENZYME

  14. (glucose)

  15. Absorption passage of molecules into body's interior &passage throughout the body

  16. ELIMINATION OF WASTE LARGE INTESTINES REABSORBS WATER & SALTS

  17. STRUCTURE OF SYSTEM

  18. TheDigestiveSystem Mouth / Teeth Esophagus Liver Stomach Small intestine Large intestine Rectum Anus Appendix

  19. OBSERVING DIGESTIVE ORGANS • External and internal structure of the stomach. • a. How would you describe the external appearance of the stomach? • b. What is the action (behavior)of the stomach? • c. How is the stomach designed to perform its function? • External and internal structure of the small and large intestines • a. Describe the appearance of the small and large intestines. • b. What are the main actions (behavior) of the small and large intestines? • c. How is the small intestine designed to perform its function? • 3. Determining the pH of gastric juice and bile • a. Describe the role of gastric juice and bile in digestion. • b. How is the pH of gastric juice and bile related to its role in digestion?

  20. Tongue Papillae Photograph by SPL/Photo Researchers, Inc. Cone-shaped tongue papillae, seen here in a colored scanning electron micrograph, contain nerve endings that receive and transmit touch sensations to the brain. As we begin chewing, the tongue shapes food in a ball-shaped bolus for swallowing. http://science.nationalgeographic.com/science/photos/digestive-system/?source=A-to-Z#/tongue-papillar_1251_600x450.jpg

  21. Inside the Human Mouth Photograph by Lennart Nilsson Inside the mouth, shown magnified here, teeth, tongue, and saliva work together to physically and chemically break down food. Humans produce up to 3 pints (1.4 liters) of saliva daily, and chemical enzymes in the saliva play a major role in disintegrating starchy foods. http://science.nationalgeographic.com/science/photos/digestive-system/?source=A-to-Z#/human-mouth_1002_600x450.jpg

  22. This colored scanning micrograph shows a cast of blood vessels from the external wall of the small intestine. Measuring about 22 feet (6.7 meters) in length, the small intestine performs most of the major digestion and absorption of nutrients. The walls of the small intestine are lined with millions of projections called villi, which absorb and transmit nutrients into the bloodstream. http://science.nationalgeographic.com/science/photos/digestive-system/?source=A-to-Z#/small-intestine-vessels_1211_600x450.jpg

  23. VILLI Image source: http://www.sciencephoto.com/media/310014/enlarge

  24. BEHAVIOR

  25. Image source: http://www.flickr.com/photos/liujoanne/2172007698/

  26. INTERCONNECTION Digestion Absorption Elimination of Waste

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