NTDT200 Chapter Notes - Chapter 8: Resting Metabolic Rate, Neuropeptide Y, Food Energy
25 Jan 2017
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Document Summary
Energy balance amount consumed from foods/beverages (energy in) versus amount expended through metabolic processes/physical activities (energy out) Bomb calorimeter measures heat energy released when foods are burned, providing estimate of potential energy of foods. Appetite response to sight, smell, thought, or taste of food (psychological cue) Hunger irritating feeling/painful sensation caused by lack of food (physiological cue) Hypothalamus brain center that controls maintenance of water balance, body temp, and appetite. Influences of hunger presence or absence of nutrients in bloodstream, size and composition of preceding meal, customary eating patterns, climate, physical activity, hormones and illnesses. Satiation feeling of satisfaction and fullness that occurs during meal and halts eating. Satiety feeling of fullness and satisfaction that occurs after meal and inhibits eating until next meal. Neuropeptide y brain chemical that causes carbohydrate cravings, stimulates appetite, diminishes energy expenditure and increases fat storage. Base metabolism energy needed to maintain life when body is at complete digestive, physical and emotional rest.
