Bio3200W19 Ch22.pptx - Starting Chapter 22 Metabolism How does the body store and use energy How does the body adjust to fed versus fasted states Part I

Bio3200W19 Ch22.pptx - Starting Chapter 22 Metabolism How...

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Starting Chapter 22
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Metabolism How does the body store and use energy? How does the body adjust to fed versus fasted states? Part I: Energy balance Part II: Metabolism Part III: Homeostatic control of metabolism Part IV: Diabetes
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Body Energy: Eating Controls Cortex – "hunger" CNS feeding center CNS satiety center CNS & GI peptides Ghrelin (increases hunger, stomach) Leptin (increases satiety, adipose tissue) CCK (increases satiety, small intestine) CRH (increases satiety, hypothalamus)
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Metabolism Part I: Energy balance Part II: Metabolism Part III: Homeostatic control of metabolism Part IV: Diabetes
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Metabolic Processes: Reversible Conversions Glycogenesis (glucose to glycogen) Glycogenolysis (glycogen to glucose) Gluconeogenesis (amino acids to glucose) Lipogenesis (glucose or fatty acids to fat stores) Lipolysis (fat stores to fatty acids & glycerol)
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Summary of Metabolic Conversions of Nutrients Figure 22-2: Summary of metabolism
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Matching 1. glucose to glycogen 2. glycogen to glucose 3. amino acids to glucose 4. glucose or fatty acids to fat stores 5. fat stores to fatty acids & glycerol a. Lipolysis b. Glycogenolysis c. Lipogenesis d. Glycogenesis e. Gluconeogenesis
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1. D 2. B 3. E 4. C 5. A 1.
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