BIOD 121 Portage module 4 Questions and Answers with complete solution

essential vitamins - 13 vitamins that animal cells need but can't synthesize found in both plant and animal sources vitamins produced by the body - vitamin K and biotin (gut flora) vitamin D (skin) vitamin A (from beta carotene) niacin (tryptophan) two criteria for vitamins - 1. must be consumed in the diet to maintain health. 2. symptoms of deficiency occur in its absence enrichment - adding nutrients back that have been lost to processing fortification - adding nutrient not naturally present in a food Fat soluble vitamins - Vitamins A, D, E, K stored in liver and adipose tissue excess consumption could lead to toxic levels two forms of vitamin a - 1. Preformed Vitamin A (retinol/retinal), found in foods and animal products: liver, fish, fish oils, fortified milk, yogurt, and eggs 2. Provitamin A or Carotene, the pigment in yellow, orange, and deep green fruits or vegetables vitamin A functions - Vision skin and epithelial health growth, development, reproduction