311C F07 Exam2PQ - Multiple Choice. G= a. H-T S b. H+T S c....

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Multiple Choice. G = a. H-T S b. H+T S c. H- S d. H+T S e. H-T S The hydrolysis of starch to glucose is a spontaneous reaction. However if you dissolve starch in water and keep the solution overnight at room temperature, there is no detectable conversion to glucose. Why? a. The change in free energy of the reaction is positive. b. The activation energy of the reaction is high. c. The change in free energy of the reaction is negative. d. The reaction is endergonic. e. The free energy of the products is higher than the free energy of the reactants. ************Steroid hormones such as estrogen act on target cells by a. initiating second messenger activity. b. binding to membrane proteins. c. initiating transcription (making mRNA). d. activating enzymes. e. binding to membrane lipids. The major difference between a cell that responds to a signal and one that does not is the presence of a a. DNA sequence that binds to the signal. b.
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This note was uploaded on 05/01/2008 for the course BIO 311C taught by Professor Satasivian during the Fall '08 term at University of Texas at Austin.

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311C F07 Exam2PQ - Multiple Choice. G= a. H-T S b. H+T S c....

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