1. DIGESTION
SECT.2-9P.67-69

2. DIGESTION
PROCESS THAT BREAKS DOWN FOOD

3. 2 TYPES OF DIGESTION 1. INTRACELLULARWITHIN THE CELL
EXAMPLESPLANTS, PARAMECIUM (PROTISTS)
*ENZYMES BREAK DOWN FOOD INTO SMALL MOLECULES THE CELL CAN USE
2.EXTRACELLULAROUTSIDE THE CELL
EXAMPLEANIMALS 
*ENZYMES ARE SECRETED INTO A DIGESTIVE CAVITY WHERE FOOD IS BROKEN DOWN AND THE NUTRIENTS ARE PASSED TO CELLS

4. 2 TYPES OF ANIMAL SYSTEMS
1. INCOMPLETE DIGESTIVE SYSTEM
*ONE OPENING (MOUTH OR ORAL CAVITY)
EXAMPLESTARFISH
2.COMPLETE DIGESTIVE SYSTEM
*TWO OPENINGS (MOUTH AND ANUS)
EXAMPLEHUMAN

5. 2 PARTS TO DIGESTION 1. PHYSICAL
LARGE PIECES ARE BROKEN INTO SMALLER ONES
ALSO KNOWN AS MECHANICAL
2. CHEMICAL
BREAKING DOWN OF COMPLEX MOLECULES INTO SMALLER ONES
INCLUDING CARBOHYDRATES, PROTEINS AND LIPIDS

6. THE HUMAN DIGESTIVE SYSTEM
P (SEE CHART P.71)

7. 1. MOUTH (ORAL CAVITY) INGESTION OF FOOD PHYSICAL DIGESTION
BEGINNING OF CARBOHYDRATE DIGESTION (SALIVARY AMYLASE FROM THE SALIVARY GLANDS)

8. 2. ESOPHAGUS
TUBE OFF THE PHARYNX THAT CONTRACTS (THIS CONTRACTION IS CALLED PERISTALSIS) TO PUSH FOOD TO STOMACH

9. 3. EPIGLOTTIS
FLAP TO COVER TRACHEA OR AIRWAY

10. 4. STOMACH BREAKS DOWN FOOD INTO A PASTE-LIKE CONSISTENCY
CONTAINS HYDROCHLORIC ACID (pH NEAR 2)
HORMONE GASTRIN IS PRODUCED TO STIMULATE ACID PRODUCTION
SECRETES PEPSIN (ACTIVE FORM OF PEPSINOGEN) TO BEGIN PROTEIN DIGESTION
MUCUS LINING FOR PROTECTION
SORES CALLED ULCERS CAN FORM

11. 5. PANCREAS
PRODUCES PANCREATIC JUICE TO MAKE THE SMALL INTESTINE BASIC (pH NEAR 8)
RELEASES THE ENZYMES PANCREATIC AMYLASE (CARBS), TRYPSIN (PROTEINS), LIPASE (LIPIDS) INTO THE SMALL INTESTINES

12. 6. LIVER
PRODUCES BILE TO EMULSIFY (BREAKDOWN FROM LARGE TO SMALL) LIPIDS

13. 7. GALL BLADDER
STORES BILE
GALLSTONES CAN FORM HERE

14. 8. SMALL INTESTINE
NUTRIENT ABSORPTION OF DIGESTIVE END PRODUCTS (MONOMERS) INTO THE BLOOD THROUGH STRUCTURES CALLED VILLI
BASIC ENVIRONMENT
pH NEAR 8
HORMONE PRODUCED IS SECRETIN (WHICH STIMULATES THE PANCREAS TO SECRETE PANCREATIC JUICE)

15. 9. LARGE INTESTINE
WATER ABSORPTION
WASTE FOR EGESTION (REMOVAL)

16. DIGESTION TEST FORMAT 28 MULTIPLE CHOICE (WITH 7 DIGESTION DIAGRAMS)
4 ORGAN IDENTIFICATION
4 SHORT ANSWER (1 PT. EACH)
3 BONUS SHORT ANSWER (1 PT. EACH)
TOTAL VALUE36 POINTS
WHAT TO STUDY
NOTES (INCLUDING HUMAN DIGESTIVE SYSTEM ORGAN OUTLINE)
EARTHWORM/BIRD HANDOUT
DIGESTION DIAGRAM HANDOUTS (CARBS, PROTEINS AND LIPIDS)
BODY DIAGRAM HANDOUT
HW QUESTIONS
STUDY GUIDE QUESTIONS