Nutrition - b would have to eat a variety of vegetables to...

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Nutrition A. Metabolism- the sum of all chemical reactions in the body 1. catabolism- breaking big molecules into little molecules a. thermodynamically favorable 2. Anabolism- makes little molecules into big molecules b. thermodynamically unfavorable B. Basal Metabolic Rate (BMR)- energy needed at rest 1. Males- 1600-1800 kcal/day 2. Females- 1300-1500 kcal/day 3. total metabolic Rate- Basal Metabolic Rate + Energy needed during work a. Average = 2000 kcal/day - factors: body temperature, age, in shape 4. Store excess Energy as glycogen (1 day’s worth) a. anymore energy is store as fats C. Essential Nutrients- need it, but can’t make it. 1. Essential amino acids- 8 a. Methionine b. Tryptophan c. Valine d. Threonine e. Phenylalanine f. Lucien g. Isolucine h. Lysine 2. Required amino acids- 20 3. Meat supplies amino acids better than vegetables a. meats more perfect food because vegetables lack some amino acids
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Unformatted text preview: b. would have to eat a variety of vegetables to get the same amino acids found in meat 4. protein deficiency- retards physical and mental development 5. Essential fatty acid- linoleic acid a. very rare to have deficiency 6. Mineral- inorganic compounds required in small amounts (< 1mg – 2.5mg) a. Na, Cl, K- nerve function, osmotic balance b. Fe- hemoglobin, cytochromes (electron transport chain) c. Ca, P- bones, ATP (P only), Nucleic acids (P only), nerve function (Ca only) d. Mg, Mn, Zn, Co, Cu, Mo- cofactors in enzymes e. I- Thyroid hormones f. F- teeth 7. Vitamins- organic compounds required in small concentrations a. fat soluble (A, D, E, K)- more dangerous to overdose (because dissolves in fat) b. water soluble (C, B (Thiamine), B2 (Riboflavin), B6 (Pyridoxine), B12 (Cobalumine))...
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This note was uploaded on 04/07/2008 for the course BS 131 taught by Professor Smith during the Spring '08 term at University of the Sciences in Philadelphia.

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