3209Chs4+5slides

3209Chs4+5slides - Chs 4+5: Energy generation and storage...

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Chs 4+5: Energy generation and storage ATP, ADP and Pi Anabolism and catabolism Enzymes: reactants, products, catalysis Controlled oxidation Glycolysis Krebs cycle Lactic acid during “anaerobic” condictions Glycogen and fat synthesis (excess energy) Protein synthesis and catabolism
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ATP = energy currency + energy enzymes High energy bonds
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ADP + P i + energy ATP + heat ATP ADP + P i + work + heat Enzymes catalyze reactions e.g., myosin is an ATPase Myosin + actin + ATP ADP + P i + work + heat
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Enzyme - specific substrates - products lactose + H 2 O lactase glucose+galactose
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Cofactors and coenzymes: small molecules that facilitate enzyme action. Example: niacin
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Enzyme-catalyzed reactions: Increase [substrate], increase rate. Maximum rate: enzyme is saturated. Low pH and low temperature slow reaction. Enzymes can be regulated.
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Reversible Reactions • Some enzymatic reactions are reversible. • H
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This note was uploaded on 09/21/2010 for the course MCB 57703 taught by Professor Machen during the Spring '08 term at Berkeley.

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3209Chs4+5slides - Chs 4+5: Energy generation and storage...

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