1. Good Morning Do Now: ▫Pick up notes, turn in digestive sheet from yesterday ▫What is the organ in the digestive system that we DO NOT use? ▫How are mechanical and chemical digestion different? Where does each occur?

2. http://www.brainpop.com/health/bodysystems/ digestivesystem/

3. The Digestive System Starring: Your stomach 

4. The Digestive System 1. Function: To break food down (mechanically and chemically) into pieces small enough for absorption, distribution, and use.

5. 2. nutrition - process by which organisms obtain and utilize their food

6. Types of Nutrition autotrophs- self feeders-make their own food (called ____________) ▫“auto” = self! ▫plants and algae heterotrophs- other feeders- depend upon other organisms for their food ▫“hetero” = other ▫animals and fungi

7. 3. Process of Digestion A.1. I n gestion -- taking in of food B.2. Digestion - mechanical and chemical breakdown of food so that it can be absorbed and used by the body cells C.3. Egestion – the elimination of SOLID wastes

8. Conversation Partners What is the difference between mechanical (physical) digestion and chemical digestion ?

9. Ways to Digest A. Mechanical digestion breaks the food into smaller parts of the same thing providing more surface area for chemical digestion. B. Chemical digestion changes the food into other smaller compounds.

10. 5. Water, vitamins, and minerals are small molecules that can be absorbed without chemical digestion 6. Large molecules like carbohydrates (starches), lipids, and proteins require chemical digestion.

11. We eat to obtain… 7. nutrients- substances in food that organisms can use What are theses substances used for?

12. MRS. NERG!

13. This is a review! Write down a meal you had recently that you think was HEALTHY and BALANCED. What food items were on your plate?

14. FOOD BROKEN DOWN INTO USED FOR CARBOHYDRATES STARCHES GLUCOSE AND SIMPLE SUGARS CELL RESPIRATION – RELEASES ATP OR ENERGY PROTEINSAMINO ACIDSREPAIR AND GROWTH LIPIDSFATTY ACIDS MEMBRANES, PROTECTION, CUSION

16. Energy potential in Food 8. calorie-- used to measure the energy in foods The calorie value of different types of food varies.

17. Which has more calories? Apple or banana? Snickers or milkyway? Hamburger or cheesburger? Chicken salad or chicken sandwhich?

18. Apple = 53, banana = 73 Snickers = 280, milk way = 260 Hamburger = 260, Cheesburger = 310 Chicken salad = 190, chicken sandwhich = 510

20. 9. Moving food through the system peristalsis- slow, rhythmic muscular contractions that push food through the GI tract

21. On your own paper, correctly identify the following structures

22. 10. From digestive to circulatory

23. Villi each villus contains a capillary and a lymph vessel to carry digested nutrients though the circulatory system and to the cells

24. Accessory Organs Liver – produces bile, breaks down lipids Gallbladder – stores bile Pancreas – produces pancreatic juice to break down proteins, lipids, and carbs Appendix – use not totally known