Metabolism-Transformations & Interactions
Metabolism-Transformations & Interactions 2310
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This 3 page Class Notes was uploaded by Kendall Krapfl on Monday October 12, 2015. The Class Notes belongs to 2310 at University of Iowa taught by Kathy Mellen in Fall 2015. Since its upload, it has received 6 views. For similar materials see Nutrition and Health in Health and Human Services at University of Iowa.
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Date Created: 10/12/15
Metabolism Transformations amp Interactions Monday October 12 2015 1235 PM 0 Chemical Reactions in the Body 0 Energy Metabolism 39 How the body obtains and uses energy from food 0 Anabolism 39 Requires energy 39 Building up of substances 39 Simple gt complex 0 Catabolism 39 Releases energy I Break down 39 Complex gt simple 0 Energy released ATP 39 Released during breakdown of glucose fatty acids and amino acids 39 Provides energy for all cell activities 0 Enzymes 39 Facilitators catalysts of metabolic reactions 0 Coenzymes 39 Organic 39 Associate with enzymes 39 Without coenzyme enzyme cannot function 0 Energy Balance Feasting Anabolism o Metabolism favors fat formation 39 Regardless whether excess from protein fat or carbohydrates 39 Dietary fat to body fat is most direct and efficient conversion 39 Carbohydrate and protein have other roles to fulfill before conversion to body fat 0 Energy Balance Transition from Feasting to Fasting Catabolism o Glucose glycerol and fatty acids are used then stored 39 Fasting state draws on these stores lecogen first and then fat are released O v1o u v v v III Preventing ketosis causes fatigue poor appetite trouble concentrating Fasting vs Starving I Between meals vs chronic Factors Affecting Metabolism 0 Age I Loss of lean body mass as we get older 0 Height I Taller higher metabolic rate 0 Growth I Increased metabolic rate 0 Body composition I More lean body mass greater metabolism 0 Fever I Increases metabolism 0 Physiological Stress I Increases metabolism 0 FastingStarvation I Decreases metabolism 0 Nutrient Review 0 O O Carbohydrate I 4565 AMDR I 2538 grams fiber I 130 gday to feed brain and reduce ketosis Protein I 10 35 AMDR I 08 gkg RDA Fat I 2035 AMDR I lt10 saturated fat I lt3OO mg cholesterol I Minimum 10 calories from fat III Meets essential fatty acid needs