ch25 - Chapter 25 METABOLISM Chapter Synopsis Students are...

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Chapter 25 METABOLISM Chapter Synopsis Students are introduced to metabolism and nutrition. There is a discussion of the meaning of metabolism. The chapter continues with an extensive analysis of the physiology of energy production, carbohydrate metabolism, lipid metabolism, and protein metabolism. These sections are capped off with an excellent summary of the key molecules in metabolism. The absorptive, post-absorptive, and starvation and fasting states are compared and contrasted and their regulatory mechanisms are explained. Next, minerals and vitamins are described according to locations, storage areas, sources, and importance in metabolism. This material is followed by coverage of the relationship of food to body heat, metabolic rate, and production and loss of body heat. Disorders that are presented include fever and obesity. Clinical applications include carbohydrate loading, ketosis, phenylketonuria, hypothermia, emotional eating, and vitamin and mineral supplements. Chapter Outline and Objectives INTRODUCTION 1. Generalize the way in which nutrients are processed through the three major metabolic fates in order to perform various energetic and structural functions in the body. Metabolic Reactions 2. Define metabolism in terms of the different types of compartmentalized
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Catabolism and Anabolism 3. Describe catabolic and anabolic reactions with respect to energy availability when the reaction occurs. Coupling of Catabolism and Anabolism by ATP 4. Examine the temporary storage of energy in the phosphate bond of ATP and the efficiency of its transfer to other bonds or performance of enzymatic reactions. ENERGY TRANSFER Oxidation-Reduction Reactions 5. Define oxidation and reduction. 6. Give examples of the transfer of electrons from a molecule through the extraction of hydrogen atom from an oxidized molecule, and then bonding of the hydrogen to a reduced molecule. 7. Discuss how the coenzymes NAD and FAD perform the oxidation-reduction reactions that capture the energy held by the electron of the H (from H-bonds in food molecules), which can then be used by the oxidative-phosphorylation system to make ATP. Mechanism of ATP Generation 8. Describe the three types of phosphorylation reactions in which kinase enzymes form a high energy phosphate bond to make ATP. CARBOHYDRATE METABOLISM
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This note was uploaded on 06/06/2011 for the course BIO 115 taught by Professor Chen during the Fall '09 term at Moraine Valley Community College.

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ch25 - Chapter 25 METABOLISM Chapter Synopsis Students are...

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