Lecture_16-Clicker_Session

Lecture_16-Clicker_Session - Hexokinase catalyzes the rst...

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A CATALYSIS REFRESHER Have you been studying?!?!? Hexokinase catalyzes the frst reaction in glycolysis. The reaction is shown below. N N N N NH2 O OH OH H H H H O P O O - O P O O - O P -O O - O O H OH H OH H OH H OH H O O H OH H OH H OH H OH H HO P -O O - O N N N N NH2 O OH OH H H H H O P O O - O P -O O - O + + Based on the reaction, hexokinase may be classifed as a(n): A. transferase B. isomerase C. oxidoreductase D. ligase E. hydrolase The schematic mechanism For serine proteases is below: Based on the reaction, serine proteases may be classifed as: A. transferases B. isomerases C. oxidoreductases D. ligases E. hydrolases The Free energy oF activation For a chemical reaction is the: A. energy difference between the reactants and the products. B. energy input required for the reaction to go through the transition state. C. energy gained by the greater stability of the products. D. energy available to be used in a reaction. E. energy required for an enzyme to bind a substrate.
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When a new, stable covalent bond is formed in a chemical reaction which of the following also happens? A. Energy is absorbed. B. Energy is released. C. There is no change in free energy. Given the relationship below, what must be true for G° to be negative? A. K eq has to be less than 1 B. K eq has to be equal to 1. C. K eq has to be greater than 1. D. T has to be greater than ln K eq E. R has to be greater than ln K eq Δ G ° = RT ln K eq Which statement below accurately describes the meaning of K eq > 1 for a chemical reaction? A. The activation energy for the reaction is relatively low.
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Lecture_16-Clicker_Session - Hexokinase catalyzes the rst...

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