LIFESCI 2N03- Final Exam Guide - Comprehensive Notes for the exam ( 174 pages long!)
30 Nov 2017
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Nutrition: the science of foods and the nutrients they contain, ad their actions within the body (ingestion digestion, absorption, transport, metabolism, and excretion) Availability, convenience, and economy (rising food costs) Positive and negative associations (bday parties or develop aversions and dislike foods they ate when they felt sick or forced to eat as punishments by parents) Nutrient composition of foods: water> carbs, lipids, proteins> tiny residues of vitamins, minerals. Nutrient composition of the body: 60% water> fat (18 to 21 percent for young men, 23 to 26 percent for young women)> protein, carbohydrate, minerals of the bone> vitamins and other minerals. Chemical composition of nutrients: minerals (chemical element) or water are both inorganic nutrients that don"t contain carbon, the other 4 nutrients (carbs, lipids, proteins, vitamins) all contain carbon and are organic nutrients. Essential nutrients are needed from foods when it can"t be produced by the body. Since fat provides more energy/g, it has a higher energy density (kcal/g)
