Problem Set 3 S10

Problem Set 3 S10 - Problem Set 3 Chapters 8-10 BILD1...

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Problem Set 3 BILD1 / Spring 2010 Chapters 8-10 Dr. Kiger 1 Metabolism 1) Choose the pair of terms that correctly completes this sentence: Catabolism is to anabolism as _____ is to _____. A) exergonic; spontaneous B) exergonic; endergonic C) free energy; entropy D) work; energy E) entropy; enthalpy 2) If an enzyme has been inhibited noncompetitively, A) the ? G for the reaction it catalyzes will always be negative. B) the active site will be occupied by the inhibitor molecule. C) raising substrate concentration will increase inhibition. D) more energy will be necessary to initiate the reaction. E) the inhibitor molecule may be chemically unrelated to the substrate 3) Which of the following characteristics is not associated with allosteric regulation of an enzyme's activity? A) A mimic of the substrate competes for the active site. B) A naturally occurring molecule stabilizes a catalytically active conformation. C) Regulatory molecules bind to a site remote from the active site. D) Inhibitors and activators may compete with one another. E) The enzyme usually has a quaternary structure.
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