1. This Week: Digestion and Nutrition Next Week: Plants are Cool 5/2 Exam 3 4/27 bonus 3 4/30 homework 4 (12 pts max)

2. CB 41.15 The Digestive System

4. CO 2 + H 2 OC 6 H 12 0 6 + O 2 CO 2 + H 2 O C 6 H 12 0 6 + O 2 light sugar Photosynthesis Cellular Respiration ATP energy ADP

5. Energy used Energy released Cells store energy in ATP

6. Using ATP

7. Complex molecules are broken down and then used to build needed molecules and to produce energy

8. Animals take in complex molecules from the environment for energy production

9. Animal digestion occurs outside of our cells.

10. animal and fungal digestion occurs outside of our cells.

11. CB 41.21 Physical digestion: liquefying of food Chemical digestion: breaking large molecules into small molecules

12. CB 41.16 Amylase in mouth Chewing and adding saliva begins the process of liquification Amylase begins the chemical digestion of carbs

13. CB 41.15 The primary function of the stomach is food storage

14. CB 41.17 Pepsin in stomach Pepsin begins the chemical digestion of proteins. In the stomach liquification continues.

15. Pepsin in stomach pH enzyme activity basicacid

16. CB 41.15 The Digestive System

17. CB 41.17 Most chemical digestion occurs in the first part of the small intestine

18. CB 41.23 The small intestine has a large surface area to aid in absorbption of nutrients

19. CB 41.23 Absorption in the Small Intestine

20. CB 41.15 The Digestive System

21. In liver, nutrient levels in blood are regulated

22. Fats and lipids move through the lymphatic system, which returns fluid to blood directly before heart Lymph vessel small intestine

23. CB 41.21

24. CB 41.26 Different mouth and teeth structures can tell about an animal’s diet

25. CB 41.26 Different mouth and teeth structures can tell about an animal’s diet

26. Grizzly bear teeth

27. CB 41.27 Carnivores have a short digestive system Herbivores have a long digestive system

28. CB 41.27 HumansBears Both humans and grizzly bears are omnivores. Our digestive systems can tell us about our ancestors.

30. This Week: Digestion and Nutrition Next Week: Plants are Cool 5/2 Exam 3 4/27 bonus 3 4/30 homework 4 (12 pts max)