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Unformatted text preview: Online Quiz #3 1. Which of the following statements best describes an allosteric enzyme? A) A multi-subunit enzyme that display simple Michaelis Menten kinetics B) A single subunit enzyme that can be activated by heterotropic effectors C) An enzyme that cannot be activated or inhibited D) A multi-subunit enzyme that displays a linear Velocity vs. [Substrate] curve. E) A multi subunit enzyme that switches between a low affinity and high affinity conformations. 2. Which of the following is true about zymogens? A) Proproteins are one type of zymogen. B) Zymogens are inactivated by inhibitor proteins. C) Zymogens are enzymatically inactive. D) Zymogens cleave proteases. 3. How is trypsinogen converted to trypsin? A) A protein kinase-catalyzed phosphorylation converts trypsinogen to trypsin. B) An increase in Ca2+ concentration promotes the conversion. C) Proteolysis of trypsinogen forms trypsin. D) Trypsinogen dimers bind an allosteric modulator, cAMP, causing dissociation into active trypsin monomers. trypsin monomers....
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