Lecture_14-Enzymatic_Catalysis

Lecture_14-Enzymatic_Catalysis - RATE EQUATIONS k S PROTEIN...

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PROTEIN FUNCTION II: CATALYSIS Introduction RATE EQUATIONS S P k rate = k S [ ] rate equation ± The rate of a reaction is determined by: concentrations of reactants the rate constant for that reaction reflects the probability that the reaction will occur under a given set of conditions k = 0.01/sec ± in 1 second, 1% of the substrate will be converted to product For a reaction with a rate constant of 200/sec, how long will it take to convert 10% of the substrate to product? rate = k S [ ] k = 0.01/sec [S] = 20μM V = (0.01/s)(20μM) = 0.2μM/s rate constant rate rate equation rate = k S [ ]
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REACTION ORDERS In a 1 st order reaction: A. there is only one reactant. B. there may be multiple reactants but one reactant gets used up frst. C. there may be multiple reactants, but the reaction rate only depends on one oF them. D. the reaction occurs in a specifc order. REACTION ORDERS The units For the rate in a 1 st order reaction are: A. reciprocal time (min -1 , s -1 , day -1 , etc.) B. concentration per time (μM/min, M/s, etc.)
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Lecture_14-Enzymatic_Catalysis - RATE EQUATIONS k S PROTEIN...

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