01:119:116 Lecture Notes - Lecture 23: Neural Tube Defect, Gastric Acid, Calorie
17 Apr 2016
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Lecture 23- nutrition (41. 1 &41. 5: intro, nutrition food is taken into body and broken down to be used by the body, animals heterotrophs, herbivores feed on producers, carnivores meat eaters, omnivores, proper nutrition. Adequate diet 3 needs: chemical e, chem e atp. To support biochemical functions functioning: many are coenzymes non protein needed by an enzyme for proper excess tube defects, water-soluble vitamins cannot be stored and get flushed out of body if in, b complex vitamins often found in same foods. Ex: b3 (niacin)-- nad + nadp cellular respiration. B9 (folic acid) deficiencies- anemia, neural: vitamin c (ascorbic acid) collagen synthesis. Antioxidant destroys reactive molecules when cells use o2. Deficiency scurvy- degeneration of skin, teeth, and blood vessels. Impaired immunity: fat-soluble can be stored, vitamin a (retinol) converts to retinol. Deficiency (severe) blindness: vitamin d increases ca2+ absorption normal growth. Exposure to uv ~20 min in skin: vitamin k synthesis of blood clotting proteins.
