1. Human Digestion

2. Human Digestion The Digestive Organs The Eyes + The Nose
Mechanical Digestion
The Mouth
The Stomach
Chemical Digestion
The Small Intestine
The Large Intestine
Rectum

3. The Eyes + The Nose Start the saliva (spit) Warm up the Stomach Glands
Sense of Smell Plays a Huge Role in the Ability to Taste

4. The Mouth Contains: Saliva that is Slightly Acidic
Amylase = an enzyme that brakes starch molecules into simple sugars (can’t break up protein or fat)

5. The Stomach The Human Food Processor
Peristalsis = rhythmic contraction of stomach muscles to break down food
Start Protein and Fat Digestion by HCl (Hydrochloric Acid, 1-2pH)
Blends food into a thick soupy mass called CHYME

6. The Small Intestine
Finishes the Digestion of Proteins into Amino Acids
Bile from the liver lets fats mix with water to finish fat digestion
Absorbs (in order of digestion) Sugars, Amino Acids, Fats, Vitamins and Minerals through Microvilli

7. The Large Intestine Top of the Large Intestine is known as the colon
The Colon absorbs water
Squeezes Waste into a compact bundle

8. The Rectum
Here is your Last chance to absorb water before packing up the NO GOOD foods and shipping them OUT
Moves waste out of the body

9. The Liver Cleans up Dead Blood Cells Stores Sugars and Vitamins
Makes Bile
Bile emulsifies fats (breaks into smaller pieces)
Bile neutralizes acids
Gall Bladder stores the bile made by the liver

10. The Pancreas Regulates sugar levels
Sends Glucagon and Insulin to the Small Intestine
Glucagon – raise blood glucose levels
Insulin – Lowers blood glucose levels

11. True or False
Bile breaks down large starch molecules into small starch molecules
Bile is made in the liver
True: then stored in gall bladder
False: breaks down fats
Amylase breaks down starch into maltose
True: poly-> monosaccharide
Lipases are enzymes that act specifically on proteins
Fats are broken down into fatty acids and glycerol
False: breaks down fats
True: Lipids are made of fatty acids connected by a glycerol