Chapter 8 Notes

Chapter 8 Notes - Chapter 8 Notes 1. One pound of fat =...

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Chapter 8 Notes 1. One pound of fat = 3,500 calories. 2. Eating behaviors respond to different signals. 3. Hunger and appetite encourage eating, while satiation and satiety stop eating. 4. Messages are sent from the hormonal and nervous system. 5. Other aspects of human behavior affect eating habits. 6. Food Composition A. A bomb calorimeter is an instrument that measures the heat energy released when foods are burnt. B. Direct calorimetry measures the heat energy released. C. Indirect calorimetry measures the amount of oxygen consumed and carbon dioxide expelled. D. Physiological fuel value is the difference between the number of cal measured with calorimetry and the number of cals that the human body derives from a food. 7. Food Intake A. Appetite initiates eating through the sight, smell, thought, or taste of food. Hunger is the feeling that motivates us to eat and is controlled by the hypothalamus. B. Satiation is the feeling of satisfaction and fullness that causes us to stop eating. C. Satiety reminds us not to eat again until the body needs food. D. Overriding hunger and satiety a. Stress eating is eating in response to arousal. b. Cognitive influences such as perceptions, memories, intellect, and social interactions. E. Sustaining hunger and Satiety a. Protein is the most satiating. b. Complex carbs are satiating. c. High-fat foods stimulate and entice people to eat more. 8. Food Intake A. Message Central- Hypothalamus
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a. Integrates messages about energy intake, expenditure, and storage. b. Neuropeptide Y initiates eating, decreases energy expenditure, increase fat storage and causes carbs cravings. 9. Energy expenditure includes basal metabolic activities, physical act., thermic effect of food and adaptive thermogenesis. 10. These energy requirements different from person to person and are affected by age,
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Chapter 8 Notes - Chapter 8 Notes 1. One pound of fat =...

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