SAMPLE QUESTIONS - Exam I SAMPLE QUESTIONS on Metabolism...

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Exam I SAMPLE QUESTIONS on Metabolism, Respiration and Photosynthesis. 1. How does an enzyme catalyze a reaction? A) by supplying the energy to speed up a reaction B) by lowering the energy of activation of a reaction C) by lowering the delta G of a reaction D) by changing the equilibrium of a spontaneous reaction E) by increasing the amount of free energy of a reaction 2. What is the change in free energy at chemical equilibrium? A) slightly increasing B) greatly increasing C) slightly decreasing D) greatly decreasing E) no net change 3. Increasing the substrate concentration in an enzymatic reaction could overcome which of the following? A) denaturing of the enzyme B) allosteric inhibition C) competitive inhibition D) noncompetitive inhibition E) insufficient cofactors 4. Which of the following is part of the first law of thermodynamics? A) Energy cannot be created or destroyed. B) The entropy of the universe is decreasing. C) The entropy of the universe is constant. D) Kinetic energy is stored energy that results from the specific arrangement of matter. E) Energy cannot be transferred or transformed. 5. A chemical reaction that has a positive delta G is correctly described as A) endergonic. B) exergonic. C) enthalpic. D) spontaneous. E) exothermic. 6. Which of the following would indicate that facilitated diffusion was taking place? A) Substances were moving against the diffusion gradient.
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This note was uploaded on 04/09/2008 for the course BSC 2010 taught by Professor Bowes during the Fall '08 term at University of Florida.

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SAMPLE QUESTIONS - Exam I SAMPLE QUESTIONS on Metabolism...

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