1 / 14

Lecture 76

Lecture 76. Mr. Sover 22 March 2010. The Beginning of Digestion. Mouth Taste Teeth Salivary glands (3 pairs) Amylase Mucus Esophagus Peristalsis. Stomach. Three main Functions 1) churning 2) secretion of acids/enzymes 3) storage. Stomach. Gastric Juices HCl, enzymes

fiorello-lappin
Download Presentation

Lecture 76

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Lecture 76 Mr. Sover 22 March 2010

  2. The Beginning of Digestion • Mouth • Taste • Teeth • Salivary glands (3 pairs) • Amylase • Mucus • Esophagus • Peristalsis

  3. Stomach • Three main Functions • 1) churning • 2) secretion of acids/enzymes • 3) storage

  4. Stomach • Gastric Juices • HCl, enzymes • Proteins necessary • Polypeptides formed • Chyme formed (liquid mixture) • Storage so that the human can eat periodically

  5. Small Intestine • Chemical digestion of food is completed and nutrient absorption occurs • Length • Gall Bladder • Liver produces bile, which is stored here • Proteins, fats detected • Bile salts

  6. Pancreas • Second organ which secretes enzyme-containing pancreatic juices • Releases sodium hydrogen carbonate • Also releases enzymes • 1) Starch -> maltose • 2) fats -> fatty acids/glycerol • 3) polypeptides -> even smaller polypeptides • 4) nucleic acids -> nucleotides

  7. Rest of the SI • Protein/nucleic acids • Carbohydrates • Absorption of nutrients • vili

  8. The Liver • Glucose is not all absorbed into the bloodstream • Excess glucose converted to ________________ (stored for later use)

  9. The Large Intestine • Reclaim water • Remaining materials = feces • Mutualistic Relationship • Vitamins B-12 and K

  10. Homework Report to the Doerr Lab

More Related