AS Quiz03 2007-2 CH385

AS Quiz03 2007-2 CH385 - CH385 Introduction to Cell Biology...

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CH385 Introduction to Cell Biology Name _________________________ Quiz #3 (30 points) AY 2007-2 MULTIPLE CHOICE: 1. (4 points) Allosterically regulated proteins a. change conformation when the regulatory molecule binds. b. are very rare in nature. c. can not be regulated by covalent modification. d. use allo creams to stay young. 2. (4 points) Which of the following statements is correct? a. An enzyme can increase the rate of a reaction. b. An enzyme decreases the free energy of the reactants. c. An enzyme changes the equilibrium concentration of the reactants and products. d. An enzyme can not be regulated by cells. 3. (4 points) ATP is used as the energy currency for all known organisms. Why? a. It can be formed from the catabolic breakdown of other high energy phosphate compounds. b. The breakdown products of ATP hydrolysis have a lower energy level that ATP. c. The energy released from ATP hydrolysis can be coupled to the synthesis of many large (polymeric) biomolecules. d. All of the above.
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AS Quiz03 2007-2 CH385 - CH385 Introduction to Cell Biology...

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