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Unformatted text preview: CHEMISTRY 1AA3 Week of FEBRUARY 6, 2012 TUTORIAL PROBLEM SET 5 QUESTIONS ______________________________________________________________________________ Page 1 of 3 Note: this tutorial contains several questions about enzyme kinetics and activation energies, respectively. Some of each, but perhaps not all, will be covered in the tutorials. Conceptual Questions about catalyzed reactions 1. How does a catalyst change the rate of a chemical reaction? 2. Does adding a catalyst change the ratio of starting material(s) to product(s) in an equilibrium reaction? 3. Explain how catalyzed reactions can be approximately zero order as well as approximately first order with regards to substrate, depending on conditions. Enzyme kinetics Our diet contains many complex polysaccharides (polymers of different sugars) which must be broken down to monosaccharides to be converted to energy. This process often involves disaccharide intermediates. Assume that cellobiose, gentiobiose and lactose are three disaccharides that are hydrolyzed to the two constituting monosaccharides, glucose & galactose, by a hypothetical enzyme,...
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This document was uploaded on 03/29/2012.
- Spring '10