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Transcript
6. 7. 8. 9. 10. Name the 2 structures that are involved in mechanical digestion. Name & state the functions of digestive enzymes for carbohydrates, proteins & fats. State the functions of glucose, fats & amino acids in the body. Define the terms essential fatty acid, essential amino acid & vitamin. Describe the functions of major vitamins & minerals in the body. Mouth Stomach http://video.google.com/videoplay?docid=27702 58302083245040#docid=-8459757275982651591 http://video.google.com/videoplay?docid=27702 58302083245040# http://video.google.com/videoplay?docid=27702 58302083245040#docid=5501527145575660749 http://www.youtube.com/watch?v=Z7xKYNz9A S0 Salivary amylase acts on starch to produce maltose Pepsin in stomach’s gastric juices acts on protein to form peptides Pancreatic amylase digests starch Trypsin & chymotrypsin digests protein Lipase digests fats Mitochondria use glucose to produce a constant supply of ATP for the cell Essential fatty acids like Ω6 (linoleic acid) form plasma membranes Essential amino acids are used to construct proteins such as enzymes to carry out metabolism, & body structures – hair, nails, DNA Essential refers to the fact that our body can’t make them so we must eat foods that contain them Fat soluble (A,D,E,K) – specialized functions A synthesis of visual pigments D helps regulate calcium 7 phosphorus metabolism E is an antioxidant K required to form prothrombin (for blood clotting) Water soluble (C, B complex) – catalysts to speed up specific reactions Minerals – macronutrients & micronutrients – specific functions table 15.5 p 315
