Chapter 6 Test File Questions

12 Questions

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These are the test file questions for chapter 6 of LIFE


Questions and Answers
  • 1. 
    The sum total of all the chemical reactions in a living structure is called its:
  • 2. 
    Water held back by a dam represents what kind of energy?
  • 3. 
     What can never be created or destroyed?
  • 4. 
    Which of the following represents potential energy?
    • A. 

      A. Chemical bonds

    • B. 

      B. Concentration gradient

    • C. 

      C. Electric charge imbalance

    • D. 

      D. Both a and b

    • E. 

      E. All of the above

  • 5. 
    The first law of thermodynamics states that the total energy in the universe is
  • 6. 
    In any system, the total energy includes usable and unusable energy. The unusable energy is a measure of the disorder of the system and is referred to as
  • 7. 
    A change in free energy is related to a change in
    • A. 

      Temperature

    • B. 

      Enthropy

    • C. 

      Both

  • 8. 
    If G of a chemical reaction is negative and the change in entropy is positive, you can conclude that the reaction is
  • 9. 
    The standard free energy change for the hydrolysis of ATP to ADP + Pi is –7.3 kcal/mol. From this information one can conclude that the reaction is 
  • 10. 
    Chemical equilibrium is a state in which G = 
  • 11. 
    When ADP gains a phosphate to form ATP, energy is 
  • 12. 
    If the enzyme phosphohexosisomerase is added to a 0.3 M solution of fructose 6-phosphate, and the reaction is allowed to proceed to equilibrium, the final concentra­tions are 0.2 M glucose 6-phosphate and 0.1 M fructose 6-phosphate. These data give an equilibrium constant of 2. What is the equilibrium constant if the initial concentration of fructose 6-phosphate is 3 M?